/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:08:46,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:08:46,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:08:46,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:08:46,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:08:46,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:08:46,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:08:46,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:08:46,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:08:46,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:08:46,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:08:46,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:08:46,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:08:46,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:08:46,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:08:46,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:08:46,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:08:46,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:08:46,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:08:46,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:08:46,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:08:46,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:08:46,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:08:46,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:08:46,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:08:46,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:08:46,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:08:46,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:08:46,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:08:46,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:08:46,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:08:46,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:08:46,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:08:46,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:08:46,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:08:46,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:08:46,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:08:46,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:08:46,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:08:46,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:08:46,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:08:46,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:08:46,810 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:08:46,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:08:46,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:08:46,813 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:08:46,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:08:46,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:08:46,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:08:46,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:08:46,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:08:46,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:08:46,814 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:08:46,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:08:46,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:08:46,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:08:46,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:08:46,816 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:08:46,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:08:46,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:08:46,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:08:46,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:08:46,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:08:46,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:08:46,818 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:08:46,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:08:47,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:08:47,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:08:47,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:08:47,211 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:08:47,212 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:08:47,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2021-02-24 03:08:47,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e96ebf0/247e9cc4bf954743bfe4b7e0cea55728/FLAGc28df1e3f [2021-02-24 03:08:48,047 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:08:48,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2021-02-24 03:08:48,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e96ebf0/247e9cc4bf954743bfe4b7e0cea55728/FLAGc28df1e3f [2021-02-24 03:08:48,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e96ebf0/247e9cc4bf954743bfe4b7e0cea55728 [2021-02-24 03:08:48,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:08:48,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:08:48,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:08:48,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:08:48,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:08:48,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:08:48" (1/1) ... [2021-02-24 03:08:48,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c98c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48, skipping insertion in model container [2021-02-24 03:08:48,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:08:48" (1/1) ... [2021-02-24 03:08:48,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:08:48,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:08:48,678 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c[10968,10981] [2021-02-24 03:08:48,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:08:48,743 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:08:48,793 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c[10968,10981] [2021-02-24 03:08:48,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:08:48,890 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:08:48,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48 WrapperNode [2021-02-24 03:08:48,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:08:48,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:08:48,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:08:48,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:08:48,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48" (1/1) ... [2021-02-24 03:08:48,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48" (1/1) ... [2021-02-24 03:08:48,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48" (1/1) ... [2021-02-24 03:08:48,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48" (1/1) ... [2021-02-24 03:08:49,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48" (1/1) ... [2021-02-24 03:08:49,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48" (1/1) ... [2021-02-24 03:08:49,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48" (1/1) ... [2021-02-24 03:08:49,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:08:49,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:08:49,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:08:49,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:08:49,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:08:49,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:08:49,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:08:49,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:08:49,124 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:08:49,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:08:49,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:08:49,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:08:49,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:08:49,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:08:49,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:08:49,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:08:49,127 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:08:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:08:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:08:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:08:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:08:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:08:49,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:08:49,131 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:08:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:08:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:08:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:08:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:08:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:08:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:08:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:08:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:08:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:08:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:08:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:08:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-24 03:08:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:08:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:08:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:08:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:08:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:08:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:08:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:08:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:08:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:08:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:08:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:08:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:08:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:08:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:08:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:08:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:08:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:08:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:08:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:08:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:08:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:08:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:08:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:08:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:08:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:08:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:08:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:08:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:08:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:08:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:08:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:08:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:08:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:08:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:08:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:08:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:08:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:08:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:08:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-24 03:08:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:08:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:08:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:08:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:08:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:08:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:08:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:08:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:08:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:08:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:08:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:08:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:08:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:08:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:08:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:08:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:08:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:08:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:08:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:08:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:08:50,367 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:08:50,367 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:08:50,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:08:50 BoogieIcfgContainer [2021-02-24 03:08:50,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:08:50,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:08:50,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:08:50,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:08:50,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:08:48" (1/3) ... [2021-02-24 03:08:50,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721f20e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:08:50, skipping insertion in model container [2021-02-24 03:08:50,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:08:48" (2/3) ... [2021-02-24 03:08:50,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721f20e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:08:50, skipping insertion in model container [2021-02-24 03:08:50,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:08:50" (3/3) ... [2021-02-24 03:08:50,379 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2021-02-24 03:08:50,387 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:08:50,393 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:08:50,413 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:08:50,437 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:08:50,438 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:08:50,438 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:08:50,438 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:08:50,438 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:08:50,438 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:08:50,438 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:08:50,439 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:08:50,462 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states. [2021-02-24 03:08:50,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-24 03:08:50,481 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:08:50,482 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] [2021-02-24 03:08:50,483 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:08:50,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:08:50,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1322050559, now seen corresponding path program 1 times [2021-02-24 03:08:50,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:08:50,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757117275] [2021-02-24 03:08:50,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:08:50,576 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:08:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:51,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:51,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:51,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:51,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:51,317 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:08:51,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:08:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:51,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:51,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:51,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:08:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:51,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:51,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:51,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:08:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:51,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:51,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:51,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:08:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:51,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:51,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:08:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:51,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:51,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:51,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:08:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:51,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:51,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:51,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:08:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:51,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:51,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:08:51,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757117275] [2021-02-24 03:08:51,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:08:51,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:08:51,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897482985] [2021-02-24 03:08:51,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:08:51,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:08:51,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:08:51,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:08:51,551 INFO L87 Difference]: Start difference. First operand 290 states. Second operand 3 states. [2021-02-24 03:08:53,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:08:53,057 INFO L93 Difference]: Finished difference Result 425 states and 507 transitions. [2021-02-24 03:08:53,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:08:53,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-24 03:08:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:08:53,076 INFO L225 Difference]: With dead ends: 425 [2021-02-24 03:08:53,076 INFO L226 Difference]: Without dead ends: 271 [2021-02-24 03:08:53,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:08:53,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-02-24 03:08:53,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 232. [2021-02-24 03:08:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2021-02-24 03:08:53,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 250 transitions. [2021-02-24 03:08:53,233 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 250 transitions. Word has length 147 [2021-02-24 03:08:53,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:08:53,234 INFO L480 AbstractCegarLoop]: Abstraction has 232 states and 250 transitions. [2021-02-24 03:08:53,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:08:53,234 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 250 transitions. [2021-02-24 03:08:53,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-24 03:08:53,238 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:08:53,238 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] [2021-02-24 03:08:53,239 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:08:53,239 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:08:53,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:08:53,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1068798101, now seen corresponding path program 1 times [2021-02-24 03:08:53,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:08:53,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583749207] [2021-02-24 03:08:53,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:08:53,245 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:08:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:53,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:53,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:53,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:53,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:08:53,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:53,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:53,794 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:08:53,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:08:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:53,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:53,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:53,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:08:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:53,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:53,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:53,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:08:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:53,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:53,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:53,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:08:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:53,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:53,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:53,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:08:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:53,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:53,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:53,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:08:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:53,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:53,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:53,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:08:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:53,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:53,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:53,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:08:53,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583749207] [2021-02-24 03:08:53,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:08:53,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:08:53,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874959291] [2021-02-24 03:08:53,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:08:53,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:08:53,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:08:53,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:08:53,899 INFO L87 Difference]: Start difference. First operand 232 states and 250 transitions. Second operand 4 states. [2021-02-24 03:08:54,716 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:08:55,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:08:55,577 INFO L93 Difference]: Finished difference Result 341 states and 381 transitions. [2021-02-24 03:08:55,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:08:55,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-24 03:08:55,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:08:55,590 INFO L225 Difference]: With dead ends: 341 [2021-02-24 03:08:55,591 INFO L226 Difference]: Without dead ends: 254 [2021-02-24 03:08:55,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:08:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-02-24 03:08:55,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 222. [2021-02-24 03:08:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2021-02-24 03:08:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 237 transitions. [2021-02-24 03:08:55,717 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 237 transitions. Word has length 148 [2021-02-24 03:08:55,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:08:55,719 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 237 transitions. [2021-02-24 03:08:55,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:08:55,720 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 237 transitions. [2021-02-24 03:08:55,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-24 03:08:55,730 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:08:55,731 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] [2021-02-24 03:08:55,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:08:55,731 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:08:55,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:08:55,732 INFO L82 PathProgramCache]: Analyzing trace with hash 653508663, now seen corresponding path program 1 times [2021-02-24 03:08:55,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:08:55,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383054529] [2021-02-24 03:08:55,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:08:55,740 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:08:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:55,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:55,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:08:55,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:55,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:08:55,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:55,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:08:55,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:55,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:08:55,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:55,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:56,282 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:08:56,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:08:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:56,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:56,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:56,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:56,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:08:56,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:08:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:56,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:56,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:56,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:08:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:56,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:56,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:56,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:08:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:56,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:56,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:56,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:56,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:08:56,403 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:08:56,405 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:08:56,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:08:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:56,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:56,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:56,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:08:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:56,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:56,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:56,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:08:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:08:56,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:08:56,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:08:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:08:56,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383054529] [2021-02-24 03:08:56,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:08:56,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:08:56,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514458009] [2021-02-24 03:08:56,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:08:56,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:08:56,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:08:56,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:08:56,476 INFO L87 Difference]: Start difference. First operand 222 states and 237 transitions. Second operand 9 states. [2021-02-24 03:08:57,141 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:08:57,597 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:08:57,979 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:08:58,374 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:08:58,756 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:08:59,098 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:00,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:00,367 INFO L93 Difference]: Finished difference Result 361 states and 406 transitions. [2021-02-24 03:09:00,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 03:09:00,367 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-24 03:09:00,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:00,370 INFO L225 Difference]: With dead ends: 361 [2021-02-24 03:09:00,370 INFO L226 Difference]: Without dead ends: 254 [2021-02-24 03:09:00,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-24 03:09:00,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-02-24 03:09:00,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 222. [2021-02-24 03:09:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2021-02-24 03:09:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 236 transitions. [2021-02-24 03:09:00,456 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 236 transitions. Word has length 157 [2021-02-24 03:09:00,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:00,456 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 236 transitions. [2021-02-24 03:09:00,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:09:00,457 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 236 transitions. [2021-02-24 03:09:00,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-24 03:09:00,458 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:00,459 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] [2021-02-24 03:09:00,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:09:00,459 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:00,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:00,460 INFO L82 PathProgramCache]: Analyzing trace with hash -2022067992, now seen corresponding path program 1 times [2021-02-24 03:09:00,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:00,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909705611] [2021-02-24 03:09:00,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:00,478 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:00,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:00,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:00,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:00,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:00,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:00,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:00,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:00,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:00,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:00,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:00,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:00,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:00,907 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:00,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:00,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:00,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:00,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:00,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:00,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:00,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:00,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:00,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:00,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:00,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:00,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:01,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:01,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:01,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:01,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:01,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:01,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:09:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:01,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:01,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:01,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:01,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:01,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:01,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:01,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:01,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-24 03:09:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:01,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:01,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:01,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-24 03:09:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:01,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:01,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:01,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909705611] [2021-02-24 03:09:01,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:01,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:09:01,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114240175] [2021-02-24 03:09:01,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:09:01,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:01,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:09:01,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:09:01,114 INFO L87 Difference]: Start difference. First operand 222 states and 236 transitions. Second operand 6 states. [2021-02-24 03:09:01,739 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:03,251 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:03,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:03,843 INFO L93 Difference]: Finished difference Result 483 states and 549 transitions. [2021-02-24 03:09:03,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-24 03:09:03,847 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2021-02-24 03:09:03,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:03,850 INFO L225 Difference]: With dead ends: 483 [2021-02-24 03:09:03,850 INFO L226 Difference]: Without dead ends: 376 [2021-02-24 03:09:03,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:09:03,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-02-24 03:09:03,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 317. [2021-02-24 03:09:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2021-02-24 03:09:03,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 341 transitions. [2021-02-24 03:09:03,968 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 341 transitions. Word has length 165 [2021-02-24 03:09:03,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:03,969 INFO L480 AbstractCegarLoop]: Abstraction has 317 states and 341 transitions. [2021-02-24 03:09:03,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:09:03,969 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 341 transitions. [2021-02-24 03:09:03,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-02-24 03:09:03,972 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:03,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:09:03,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:09:03,973 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:03,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:03,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1779856354, now seen corresponding path program 1 times [2021-02-24 03:09:03,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:03,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649859302] [2021-02-24 03:09:03,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:03,977 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:04,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:04,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:04,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:04,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:04,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:04,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,477 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:04,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:04,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:09:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-24 03:09:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:04,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:04,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 03:09:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:04,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:04,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:04,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649859302] [2021-02-24 03:09:04,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:04,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:09:04,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723231567] [2021-02-24 03:09:04,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:09:04,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:04,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:09:04,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:09:04,754 INFO L87 Difference]: Start difference. First operand 317 states and 341 transitions. Second operand 9 states. [2021-02-24 03:09:05,335 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:06,875 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:07,266 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:07,662 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:08,057 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:08,418 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:08,792 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:09,163 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:09,653 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:10,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:10,559 INFO L93 Difference]: Finished difference Result 775 states and 897 transitions. [2021-02-24 03:09:10,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:09:10,561 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2021-02-24 03:09:10,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:10,566 INFO L225 Difference]: With dead ends: 775 [2021-02-24 03:09:10,566 INFO L226 Difference]: Without dead ends: 573 [2021-02-24 03:09:10,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-02-24 03:09:10,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-02-24 03:09:10,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 482. [2021-02-24 03:09:10,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2021-02-24 03:09:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 525 transitions. [2021-02-24 03:09:10,758 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 525 transitions. Word has length 189 [2021-02-24 03:09:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:10,758 INFO L480 AbstractCegarLoop]: Abstraction has 482 states and 525 transitions. [2021-02-24 03:09:10,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:09:10,759 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 525 transitions. [2021-02-24 03:09:10,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-02-24 03:09:10,762 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:10,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:09:10,762 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:09:10,762 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:10,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:10,763 INFO L82 PathProgramCache]: Analyzing trace with hash -650428215, now seen corresponding path program 1 times [2021-02-24 03:09:10,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:10,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349096990] [2021-02-24 03:09:10,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:10,766 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:10,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:10,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:10,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:10,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:10,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:10,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:10,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:10,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:10,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:10,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:10,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:10,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:10,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:10,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:10,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:10,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:10,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:10,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,143 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:11,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:11,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:09:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:11,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 03:09:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-24 03:09:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:11,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:11,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:11,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:11,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:11,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:11,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349096990] [2021-02-24 03:09:11,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:11,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:09:11,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329059621] [2021-02-24 03:09:11,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:09:11,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:11,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:09:11,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:09:11,348 INFO L87 Difference]: Start difference. First operand 482 states and 525 transitions. Second operand 10 states. [2021-02-24 03:09:11,975 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:13,601 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:13,949 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:14,338 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:14,777 WARN L202 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:15,204 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:15,641 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:16,054 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:16,451 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:17,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:17,345 INFO L93 Difference]: Finished difference Result 639 states and 743 transitions. [2021-02-24 03:09:17,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-24 03:09:17,345 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2021-02-24 03:09:17,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:17,351 INFO L225 Difference]: With dead ends: 639 [2021-02-24 03:09:17,351 INFO L226 Difference]: Without dead ends: 636 [2021-02-24 03:09:17,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-02-24 03:09:17,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-24 03:09:17,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 482. [2021-02-24 03:09:17,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2021-02-24 03:09:17,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 524 transitions. [2021-02-24 03:09:17,561 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 524 transitions. Word has length 194 [2021-02-24 03:09:17,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:17,561 INFO L480 AbstractCegarLoop]: Abstraction has 482 states and 524 transitions. [2021-02-24 03:09:17,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:09:17,562 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 524 transitions. [2021-02-24 03:09:17,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-02-24 03:09:17,565 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:17,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:09:17,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:09:17,565 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:17,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:17,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1790354212, now seen corresponding path program 1 times [2021-02-24 03:09:17,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:17,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14898266] [2021-02-24 03:09:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:17,570 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:17,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:17,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:17,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:17,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:17,948 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:17,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:17,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:17,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:17,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:17,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:17,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:17,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:17,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:17,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:17,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:17,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:17,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:17,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:17,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:17,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:09:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:18,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:18,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:18,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:18,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:18,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-02-24 03:09:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-02-24 03:09:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:18,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14898266] [2021-02-24 03:09:18,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:18,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:09:18,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579496846] [2021-02-24 03:09:18,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:09:18,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:18,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:09:18,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:09:18,179 INFO L87 Difference]: Start difference. First operand 482 states and 524 transitions. Second operand 10 states. [2021-02-24 03:09:19,481 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:19,862 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:09:20,256 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:09:20,629 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:21,016 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:21,382 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:22,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:22,475 INFO L93 Difference]: Finished difference Result 1013 states and 1172 transitions. [2021-02-24 03:09:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:09:22,476 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2021-02-24 03:09:22,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:22,480 INFO L225 Difference]: With dead ends: 1013 [2021-02-24 03:09:22,480 INFO L226 Difference]: Without dead ends: 646 [2021-02-24 03:09:22,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-02-24 03:09:22,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2021-02-24 03:09:22,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 498. [2021-02-24 03:09:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2021-02-24 03:09:22,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 540 transitions. [2021-02-24 03:09:22,677 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 540 transitions. Word has length 195 [2021-02-24 03:09:22,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:22,678 INFO L480 AbstractCegarLoop]: Abstraction has 498 states and 540 transitions. [2021-02-24 03:09:22,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:09:22,678 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 540 transitions. [2021-02-24 03:09:22,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-02-24 03:09:22,681 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:22,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:09:22,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:09:22,682 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:22,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:22,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1082372220, now seen corresponding path program 1 times [2021-02-24 03:09:22,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:22,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811664778] [2021-02-24 03:09:22,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:22,686 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:22,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:22,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:22,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:22,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:22,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:22,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:22,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:22,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:22,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:22,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,037 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:23,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:23,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:23,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:09:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-02-24 03:09:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-02-24 03:09:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:23,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811664778] [2021-02-24 03:09:23,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:23,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 03:09:23,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991818336] [2021-02-24 03:09:23,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 03:09:23,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:23,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 03:09:23,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-24 03:09:23,269 INFO L87 Difference]: Start difference. First operand 498 states and 540 transitions. Second operand 13 states. [2021-02-24 03:09:23,988 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:24,412 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:09:24,821 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:25,194 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:25,550 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:26,490 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:26,855 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:27,251 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:27,651 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:28,027 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:29,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:29,351 INFO L93 Difference]: Finished difference Result 1051 states and 1224 transitions. [2021-02-24 03:09:29,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 03:09:29,351 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 195 [2021-02-24 03:09:29,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:29,356 INFO L225 Difference]: With dead ends: 1051 [2021-02-24 03:09:29,356 INFO L226 Difference]: Without dead ends: 668 [2021-02-24 03:09:29,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-02-24 03:09:29,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2021-02-24 03:09:29,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 510. [2021-02-24 03:09:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2021-02-24 03:09:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 552 transitions. [2021-02-24 03:09:29,603 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 552 transitions. Word has length 195 [2021-02-24 03:09:29,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:29,604 INFO L480 AbstractCegarLoop]: Abstraction has 510 states and 552 transitions. [2021-02-24 03:09:29,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 03:09:29,604 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 552 transitions. [2021-02-24 03:09:29,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-02-24 03:09:29,608 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:29,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:09:29,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 03:09:29,609 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:29,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:29,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1290720991, now seen corresponding path program 1 times [2021-02-24 03:09:29,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:29,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670591736] [2021-02-24 03:09:29,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:29,613 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:29,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:29,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:29,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:29,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:29,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:29,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:29,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:29,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:29,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:29,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:09:29,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:29,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:29,961 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:29,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:29,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:09:30,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:09:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:30,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:30,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:30,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-02-24 03:09:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-02-24 03:09:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:30,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:30,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:30,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670591736] [2021-02-24 03:09:30,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:30,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 03:09:30,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426985436] [2021-02-24 03:09:30,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 03:09:30,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:30,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 03:09:30,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-24 03:09:30,148 INFO L87 Difference]: Start difference. First operand 510 states and 552 transitions. Second operand 7 states. [2021-02-24 03:09:30,722 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:31,399 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:33,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:33,862 INFO L93 Difference]: Finished difference Result 1476 states and 1756 transitions. [2021-02-24 03:09:33,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:09:33,863 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2021-02-24 03:09:33,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:33,870 INFO L225 Difference]: With dead ends: 1476 [2021-02-24 03:09:33,870 INFO L226 Difference]: Without dead ends: 1081 [2021-02-24 03:09:33,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-24 03:09:33,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2021-02-24 03:09:34,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 908. [2021-02-24 03:09:34,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2021-02-24 03:09:34,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1016 transitions. [2021-02-24 03:09:34,473 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1016 transitions. Word has length 195 [2021-02-24 03:09:34,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:34,474 INFO L480 AbstractCegarLoop]: Abstraction has 908 states and 1016 transitions. [2021-02-24 03:09:34,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 03:09:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1016 transitions. [2021-02-24 03:09:34,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-24 03:09:34,480 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:34,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:09:34,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 03:09:34,481 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:34,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:34,481 INFO L82 PathProgramCache]: Analyzing trace with hash 2077155985, now seen corresponding path program 1 times [2021-02-24 03:09:34,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:34,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302749648] [2021-02-24 03:09:34,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:34,487 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:09:34,575 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:09:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:09:34,661 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:09:34,921 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:09:34,922 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:09:34,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 03:09:34,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:09:34 BoogieIcfgContainer [2021-02-24 03:09:34,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:09:34,972 INFO L168 Benchmark]: Toolchain (without parser) took 46670.18 ms. Allocated memory was 151.0 MB in the beginning and 580.9 MB in the end (delta: 429.9 MB). Free memory was 126.3 MB in the beginning and 343.7 MB in the end (delta: -217.4 MB). Peak memory consumption was 214.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:09:34,973 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:09:34,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 105.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:09:34,975 INFO L168 Benchmark]: Boogie Preprocessor took 133.63 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 132.4 MB in the end (delta: -27.3 MB). Peak memory consumption was 6.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:09:34,975 INFO L168 Benchmark]: RCFGBuilder took 1343.96 ms. Allocated memory is still 151.0 MB. Free memory was 132.0 MB in the beginning and 77.9 MB in the end (delta: 54.1 MB). Peak memory consumption was 54.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:09:34,975 INFO L168 Benchmark]: TraceAbstraction took 44591.57 ms. Allocated memory was 151.0 MB in the beginning and 580.9 MB in the end (delta: 429.9 MB). Free memory was 77.4 MB in the beginning and 343.7 MB in the end (delta: -266.3 MB). Peak memory consumption was 164.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:09:34,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 580.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 105.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 133.63 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 132.4 MB in the end (delta: -27.3 MB). Peak memory consumption was 6.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1343.96 ms. Allocated memory is still 151.0 MB. Free memory was 132.0 MB in the beginning and 77.9 MB in the end (delta: 54.1 MB). Peak memory consumption was 54.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 44591.57 ms. Allocated memory was 151.0 MB in the beginning and 580.9 MB in the end (delta: 429.9 MB). Free memory was 77.4 MB in the beginning and 343.7 MB in the end (delta: -266.3 MB). Peak memory consumption was 164.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 412]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L685] int cleanupTimeShifts = 4; [L808] int waterLevel = 1; [L809] int methaneLevelCritical = 0; [L758] int retValue_acc ; [L759] int tmp ; [L763] FCALL select_helpers() [L764] FCALL select_features() [L765] CALL, EXPR valid_product() [L676] int retValue_acc ; [L679] retValue_acc = 1 [L680] return (retValue_acc); [L765] RET, EXPR valid_product() [L765] tmp = valid_product() [L767] COND TRUE \read(tmp) [L769] FCALL setup() [L770] CALL runTest() [L752] CALL test() [L583] int splverifierCounter ; [L584] int tmp ; [L585] int tmp___0 ; [L586] int tmp___1 ; [L587] int tmp___2 ; [L590] splverifierCounter = 0 [L592] COND TRUE 1 [L594] COND TRUE splverifierCounter < 4 [L600] tmp = __VERIFIER_nondet_int() [L602] COND TRUE \read(tmp) [L604] CALL waterRise() [L826] COND TRUE waterLevel < 2 [L827] waterLevel = waterLevel + 1 [L604] RET waterRise() [L610] tmp___0 = __VERIFIER_nondet_int() [L612] COND TRUE \read(tmp___0) [L614] CALL changeMethaneLevel() [L838] COND FALSE !(\read(methaneLevelCritical)) [L841] methaneLevelCritical = 1 [L614] RET changeMethaneLevel() [L620] tmp___2 = __VERIFIER_nondet_int() [L622] COND TRUE \read(tmp___2) [L635] CALL timeShift() [L434] COND FALSE !(\read(pumpRunning)) [L441] COND TRUE \read(systemActive) [L443] CALL processEnvironment() [L463] int tmp ; [L466] COND TRUE ! pumpRunning [L468] CALL, EXPR isHighWaterLevel() [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L566] CALL, EXPR isHighWaterSensorDry() [L888] int retValue_acc ; [L891] COND FALSE !(waterLevel < 2) [L895] retValue_acc = 0 [L896] return (retValue_acc); [L566] RET, EXPR isHighWaterSensorDry() [L566] tmp = isHighWaterSensorDry() [L568] COND FALSE !(\read(tmp)) [L571] tmp___0 = 1 [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); [L468] RET, EXPR isHighWaterLevel() [L468] tmp = isHighWaterLevel() [L470] COND TRUE \read(tmp) [L472] CALL activatePump() [L491] pumpRunning = 1 [L472] RET activatePump() [L443] RET processEnvironment() [L449] CALL __utac_acc__Specification1_spec__1() [L782] int tmp ; [L783] int tmp___0 ; [L787] CALL, EXPR isMethaneLevelCritical() [L847] int retValue_acc ; [L850] retValue_acc = methaneLevelCritical [L851] return (retValue_acc); [L787] RET, EXPR isMethaneLevelCritical() [L787] tmp = isMethaneLevelCritical() [L789] COND TRUE \read(tmp) [L791] CALL, EXPR isPumpRunning() [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); [L791] RET, EXPR isPumpRunning() [L791] tmp___0 = isPumpRunning() [L793] COND TRUE \read(tmp___0) [L795] CALL __automaton_fail() [L412] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 615 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 44.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 35.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1973 SDtfs, 3358 SDslu, 3799 SDs, 0 SdLazy, 6560 SolverSat, 905 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 329 GetRequests, 213 SyntacticMatches, 3 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 19.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=908occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 886 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...