/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_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:09:37,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:09:37,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:09:37,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:09:37,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:09:37,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:09:37,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:09:37,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:09:37,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:09:37,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:09:37,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:09:37,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:09:37,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:09:37,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:09:37,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:09:37,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:09:37,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:09:37,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:09:37,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:09:37,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:09:37,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:09:37,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:09:37,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:09:37,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:09:37,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:09:37,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:09:37,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:09:37,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:09:37,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:09:37,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:09:37,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:09:37,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:09:37,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:09:37,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:09:37,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:09:37,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:09:37,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:09:37,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:09:37,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:09:37,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:09:37,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:09:37,821 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 03:09:37,843 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:09:37,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:09:37,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:09:37,848 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:09:37,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:09:37,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:09:37,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:09:37,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:09:37,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:09:37,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:09:37,850 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:09:37,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:09:37,850 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:09:37,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:09:37,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:09:37,851 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:09:37,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:09:37,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:09:37,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:09:37,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:09:37,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:09:37,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:09:37,852 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:09:37,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:09:38,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:09:38,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:09:38,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:09:38,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:09:38,288 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:09:38,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2021-02-24 03:09:38,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd91e7c12/2689202e4f2f4cb3b5575fda5eb001aa/FLAGccf4b99ae [2021-02-24 03:09:39,070 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:09:39,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2021-02-24 03:09:39,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd91e7c12/2689202e4f2f4cb3b5575fda5eb001aa/FLAGccf4b99ae [2021-02-24 03:09:39,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd91e7c12/2689202e4f2f4cb3b5575fda5eb001aa [2021-02-24 03:09:39,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:09:39,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:09:39,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:09:39,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:09:39,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:09:39,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:09:39" (1/1) ... [2021-02-24 03:09:39,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773e9dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39, skipping insertion in model container [2021-02-24 03:09:39,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:09:39" (1/1) ... [2021-02-24 03:09:39,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:09:39,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:09:39,707 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_product41.cil.c[17169,17182] [2021-02-24 03:09:39,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:09:39,724 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:09:39,856 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_product41.cil.c[17169,17182] [2021-02-24 03:09:39,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:09:39,900 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:09:39,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39 WrapperNode [2021-02-24 03:09:39,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:09:39,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:09:39,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:09:39,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:09:39,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39" (1/1) ... [2021-02-24 03:09:39,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39" (1/1) ... [2021-02-24 03:09:39,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39" (1/1) ... [2021-02-24 03:09:39,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39" (1/1) ... [2021-02-24 03:09:40,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39" (1/1) ... [2021-02-24 03:09:40,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39" (1/1) ... [2021-02-24 03:09:40,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39" (1/1) ... [2021-02-24 03:09:40,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:09:40,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:09:40,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:09:40,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:09:40,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39" (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 03:09:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:09:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:09:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:09:40,171 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:09:40,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:09:40,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:09:40,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:09:40,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:09:40,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:09:40,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:09:40,173 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:09:40,173 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:09:40,173 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:09:40,174 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:09:40,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:09:40,174 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:09:40,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:09:40,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:09:40,175 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:09:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:09:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:09:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:09:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:09:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:09:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:09:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:09:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:09:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:09:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:09:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:09:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:09:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:09:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:09:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:09:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:09:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:09:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:09:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:09:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-24 03:09:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:09:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:09:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:09:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:09:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:09:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:09:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:09:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:09:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:09:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:09:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:09:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:09:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:09:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:09:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:09:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:09:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:09:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:09:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:09:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:09:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:09:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:09:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:09:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:09:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:09:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:09:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:09:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:09:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:09:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:09:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:09:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:09:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:09:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:09:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:09:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-24 03:09:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:09:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:09:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:09:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:09:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:09:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:09:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:09:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:09:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:09:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:09:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:09:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:09:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:09:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:09:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:09:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:09:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:09:41,566 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:09:41,567 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:09:41,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:09:41 BoogieIcfgContainer [2021-02-24 03:09:41,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:09:41,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:09:41,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:09:41,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:09:41,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:09:39" (1/3) ... [2021-02-24 03:09:41,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af491e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:09:41, skipping insertion in model container [2021-02-24 03:09:41,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:39" (2/3) ... [2021-02-24 03:09:41,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af491e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:09:41, skipping insertion in model container [2021-02-24 03:09:41,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:09:41" (3/3) ... [2021-02-24 03:09:41,579 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2021-02-24 03:09:41,585 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:09:41,591 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:09:41,610 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:09:41,637 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:09:41,637 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:09:41,637 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:09:41,637 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:09:41,637 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:09:41,638 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:09:41,638 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:09:41,638 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:09:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2021-02-24 03:09:41,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-24 03:09:41,683 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:41,685 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 03:09:41,685 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:41,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:41,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1903071762, now seen corresponding path program 1 times [2021-02-24 03:09:41,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:41,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237698770] [2021-02-24 03:09:41,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:41,792 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:42,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:42,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:42,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:42,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:42,492 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:42,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:42,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:42,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:42,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:42,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:42,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:42,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:42,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:42,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:42,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:42,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:42,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:42,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:42,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:42,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:42,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:42,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:42,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:42,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:09:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:42,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:42,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:42,792 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 03:09:42,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237698770] [2021-02-24 03:09:42,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:42,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:09:42,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016523452] [2021-02-24 03:09:42,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:09:42,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:42,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:09:42,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:09:42,820 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 3 states. [2021-02-24 03:09:44,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:44,460 INFO L93 Difference]: Finished difference Result 461 states and 547 transitions. [2021-02-24 03:09:44,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:09:44,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-24 03:09:44,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:44,507 INFO L225 Difference]: With dead ends: 461 [2021-02-24 03:09:44,507 INFO L226 Difference]: Without dead ends: 290 [2021-02-24 03:09:44,514 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 03:09:44,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-02-24 03:09:44,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 249. [2021-02-24 03:09:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2021-02-24 03:09:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2021-02-24 03:09:44,763 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 147 [2021-02-24 03:09:44,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:44,766 INFO L480 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2021-02-24 03:09:44,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:09:44,767 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2021-02-24 03:09:44,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-24 03:09:44,783 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:44,783 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 03:09:44,783 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:09:44,784 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:44,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:44,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1306648680, now seen corresponding path program 1 times [2021-02-24 03:09:44,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:44,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610859487] [2021-02-24 03:09:44,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:44,794 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:44,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:44,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:44,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:44,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:44,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:44,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:45,310 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:45,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:45,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:45,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:45,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:45,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:45,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:45,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:45,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:45,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:45,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:45,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:45,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:45,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:45,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:45,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:45,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:09:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:45,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:45,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:45,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:09:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:45,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:45,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:45,453 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 03:09:45,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610859487] [2021-02-24 03:09:45,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:45,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:09:45,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610233962] [2021-02-24 03:09:45,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:09:45,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:45,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:09:45,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:09:45,458 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 4 states. [2021-02-24 03:09:46,206 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:47,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:47,211 INFO L93 Difference]: Finished difference Result 377 states and 421 transitions. [2021-02-24 03:09:47,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:09:47,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-24 03:09:47,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:47,217 INFO L225 Difference]: With dead ends: 377 [2021-02-24 03:09:47,217 INFO L226 Difference]: Without dead ends: 273 [2021-02-24 03:09:47,219 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 03:09:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-02-24 03:09:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 239. [2021-02-24 03:09:47,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2021-02-24 03:09:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 256 transitions. [2021-02-24 03:09:47,334 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 256 transitions. Word has length 148 [2021-02-24 03:09:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:47,334 INFO L480 AbstractCegarLoop]: Abstraction has 239 states and 256 transitions. [2021-02-24 03:09:47,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:09:47,335 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 256 transitions. [2021-02-24 03:09:47,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-24 03:09:47,337 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:47,337 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 03:09:47,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:09:47,337 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:47,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:47,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1303384095, now seen corresponding path program 1 times [2021-02-24 03:09:47,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:47,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483197609] [2021-02-24 03:09:47,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:47,343 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:47,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:47,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:47,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:47,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,770 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:47,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:09:47,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:47,884 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:09:47,885 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:09:47,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:09:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:09:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,972 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 03:09:47,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483197609] [2021-02-24 03:09:47,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:47,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:09:47,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318657069] [2021-02-24 03:09:47,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:09:47,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:47,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:09:47,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:09:47,975 INFO L87 Difference]: Start difference. First operand 239 states and 256 transitions. Second operand 9 states. [2021-02-24 03:09:48,527 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:48,968 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:49,321 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:09:49,704 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:50,074 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:50,469 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:51,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:51,933 INFO L93 Difference]: Finished difference Result 397 states and 446 transitions. [2021-02-24 03:09:51,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 03:09:51,934 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-24 03:09:51,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:51,938 INFO L225 Difference]: With dead ends: 397 [2021-02-24 03:09:51,938 INFO L226 Difference]: Without dead ends: 273 [2021-02-24 03:09:51,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-24 03:09:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-02-24 03:09:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 239. [2021-02-24 03:09:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2021-02-24 03:09:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 255 transitions. [2021-02-24 03:09:52,035 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 255 transitions. Word has length 157 [2021-02-24 03:09:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:52,036 INFO L480 AbstractCegarLoop]: Abstraction has 239 states and 255 transitions. [2021-02-24 03:09:52,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:09:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 255 transitions. [2021-02-24 03:09:52,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-24 03:09:52,039 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:52,039 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 03:09:52,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:09:52,039 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:52,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:52,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1029755946, now seen corresponding path program 1 times [2021-02-24 03:09:52,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:52,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407501906] [2021-02-24 03:09:52,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:52,044 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:52,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:52,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:52,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:52,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:52,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:52,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:52,417 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:52,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:52,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:52,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:52,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:52,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:52,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:52,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:52,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:52,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:52,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:52,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:52,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:09:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:52,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:52,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:52,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:52,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:52,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-24 03:09:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:52,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:52,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-24 03:09:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:52,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:52,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:52,573 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 03:09:52,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407501906] [2021-02-24 03:09:52,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:52,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:09:52,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845247354] [2021-02-24 03:09:52,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:09:52,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:52,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:09:52,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:09:52,576 INFO L87 Difference]: Start difference. First operand 239 states and 255 transitions. Second operand 6 states. [2021-02-24 03:09:53,158 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:54,708 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:55,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:55,388 INFO L93 Difference]: Finished difference Result 519 states and 589 transitions. [2021-02-24 03:09:55,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-24 03:09:55,388 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2021-02-24 03:09:55,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:55,392 INFO L225 Difference]: With dead ends: 519 [2021-02-24 03:09:55,392 INFO L226 Difference]: Without dead ends: 395 [2021-02-24 03:09:55,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:09:55,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2021-02-24 03:09:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 336. [2021-02-24 03:09:55,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2021-02-24 03:09:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 362 transitions. [2021-02-24 03:09:55,545 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 362 transitions. Word has length 165 [2021-02-24 03:09:55,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:55,546 INFO L480 AbstractCegarLoop]: Abstraction has 336 states and 362 transitions. [2021-02-24 03:09:55,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:09:55,546 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 362 transitions. [2021-02-24 03:09:55,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-02-24 03:09:55,549 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:55,549 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 03:09:55,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:09:55,549 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:55,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:55,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1009193113, now seen corresponding path program 1 times [2021-02-24 03:09:55,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:55,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246919735] [2021-02-24 03:09:55,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:55,553 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:55,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:55,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:55,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:55,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:55,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:55,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:55,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:55,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:55,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:55,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,012 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:56,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:56,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:56,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:09:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:56,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:56,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:56,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:56,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-24 03:09:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 03:09:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:56,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:56,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:56,331 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 03:09:56,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246919735] [2021-02-24 03:09:56,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:56,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 03:09:56,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218310759] [2021-02-24 03:09:56,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 03:09:56,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:56,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 03:09:56,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-02-24 03:09:56,334 INFO L87 Difference]: Start difference. First operand 336 states and 362 transitions. Second operand 12 states. [2021-02-24 03:09:57,019 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:57,397 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:09:57,729 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:58,066 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:58,424 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:59,371 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:59,736 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:00,117 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:00,521 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:00,877 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:02,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:02,067 INFO L93 Difference]: Finished difference Result 621 states and 705 transitions. [2021-02-24 03:10:02,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 03:10:02,067 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 189 [2021-02-24 03:10:02,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:02,071 INFO L225 Difference]: With dead ends: 621 [2021-02-24 03:10:02,071 INFO L226 Difference]: Without dead ends: 400 [2021-02-24 03:10:02,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2021-02-24 03:10:02,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-02-24 03:10:02,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 342. [2021-02-24 03:10:02,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2021-02-24 03:10:02,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 368 transitions. [2021-02-24 03:10:02,223 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 368 transitions. Word has length 189 [2021-02-24 03:10:02,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:02,224 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 368 transitions. [2021-02-24 03:10:02,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 03:10:02,224 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 368 transitions. [2021-02-24 03:10:02,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-02-24 03:10:02,227 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:02,227 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 03:10:02,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:10:02,227 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:02,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:02,228 INFO L82 PathProgramCache]: Analyzing trace with hash -607496135, now seen corresponding path program 1 times [2021-02-24 03:10:02,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:02,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129732529] [2021-02-24 03:10:02,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:02,232 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,620 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:02,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:10:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:10:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:10:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:10:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-24 03:10:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 03:10:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:02,795 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 03:10:02,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129732529] [2021-02-24 03:10:02,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:02,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:10:02,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089203295] [2021-02-24 03:10:02,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:10:02,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:02,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:10:02,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:10:02,797 INFO L87 Difference]: Start difference. First operand 342 states and 368 transitions. Second operand 9 states. [2021-02-24 03:10:03,377 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:04,784 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:05,176 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:10:05,643 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:06,044 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:06,768 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:07,117 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:10:07,429 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:07,875 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:08,792 INFO L93 Difference]: Finished difference Result 850 states and 978 transitions. [2021-02-24 03:10:08,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:10:08,793 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2021-02-24 03:10:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:08,798 INFO L225 Difference]: With dead ends: 850 [2021-02-24 03:10:08,798 INFO L226 Difference]: Without dead ends: 623 [2021-02-24 03:10:08,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-02-24 03:10:08,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2021-02-24 03:10:09,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 532. [2021-02-24 03:10:09,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2021-02-24 03:10:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 579 transitions. [2021-02-24 03:10:09,047 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 579 transitions. Word has length 189 [2021-02-24 03:10:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:09,047 INFO L480 AbstractCegarLoop]: Abstraction has 532 states and 579 transitions. [2021-02-24 03:10:09,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:10:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 579 transitions. [2021-02-24 03:10:09,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-02-24 03:10:09,051 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:09,051 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 03:10:09,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:10:09,052 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:09,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:09,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1645791901, now seen corresponding path program 1 times [2021-02-24 03:10:09,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:09,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193842938] [2021-02-24 03:10:09,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:09,056 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,482 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:09,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:10:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:10:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:10:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:10:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:10:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 03:10:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-24 03:10:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:09,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:09,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:09,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:09,707 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 03:10:09,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193842938] [2021-02-24 03:10:09,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:09,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:10:09,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941118466] [2021-02-24 03:10:09,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:10:09,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:09,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:10:09,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:10:09,713 INFO L87 Difference]: Start difference. First operand 532 states and 579 transitions. Second operand 10 states. [2021-02-24 03:10:10,318 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:12,050 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:12,403 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:12,847 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:13,946 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:14,306 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:10:14,694 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:15,087 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:10:15,482 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:15,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:15,766 INFO L93 Difference]: Finished difference Result 689 states and 797 transitions. [2021-02-24 03:10:15,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-24 03:10:15,767 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2021-02-24 03:10:15,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:15,771 INFO L225 Difference]: With dead ends: 689 [2021-02-24 03:10:15,771 INFO L226 Difference]: Without dead ends: 686 [2021-02-24 03:10:15,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-02-24 03:10:15,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-02-24 03:10:15,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 532. [2021-02-24 03:10:15,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2021-02-24 03:10:15,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 578 transitions. [2021-02-24 03:10:15,991 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 578 transitions. Word has length 194 [2021-02-24 03:10:15,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:15,992 INFO L480 AbstractCegarLoop]: Abstraction has 532 states and 578 transitions. [2021-02-24 03:10:15,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:10:15,992 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 578 transitions. [2021-02-24 03:10:15,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-02-24 03:10:15,996 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:15,996 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:15,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:10:15,997 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:15,997 INFO L82 PathProgramCache]: Analyzing trace with hash -2122444853, now seen corresponding path program 1 times [2021-02-24 03:10:15,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:15,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909506865] [2021-02-24 03:10:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:16,001 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,336 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:16,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:10:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:10:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:16,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:16,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:10:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:16,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:16,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:16,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:10:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:10:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:10:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-02-24 03:10:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-02-24 03:10:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:16,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:16,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:16,580 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 03:10:16,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909506865] [2021-02-24 03:10:16,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:16,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:10:16,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774572086] [2021-02-24 03:10:16,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:10:16,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:16,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:10:16,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:10:16,583 INFO L87 Difference]: Start difference. First operand 532 states and 578 transitions. Second operand 10 states. [2021-02-24 03:10:17,894 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:18,273 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:10:18,639 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:10:19,040 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:19,440 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:19,815 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:21,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:21,201 INFO L93 Difference]: Finished difference Result 1117 states and 1296 transitions. [2021-02-24 03:10:21,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:10:21,202 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 217 [2021-02-24 03:10:21,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:21,207 INFO L225 Difference]: With dead ends: 1117 [2021-02-24 03:10:21,207 INFO L226 Difference]: Without dead ends: 700 [2021-02-24 03:10:21,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-02-24 03:10:21,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-02-24 03:10:21,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 548. [2021-02-24 03:10:21,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2021-02-24 03:10:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 594 transitions. [2021-02-24 03:10:21,493 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 594 transitions. Word has length 217 [2021-02-24 03:10:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:21,494 INFO L480 AbstractCegarLoop]: Abstraction has 548 states and 594 transitions. [2021-02-24 03:10:21,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:10:21,494 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 594 transitions. [2021-02-24 03:10:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-02-24 03:10:21,499 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:21,499 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:21,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 03:10:21,500 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:21,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:21,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1090573710, now seen corresponding path program 1 times [2021-02-24 03:10:21,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:21,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299542485] [2021-02-24 03:10:21,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:21,504 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:21,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:21,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:21,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:21,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:21,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:10:21,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:21,901 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:21,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:21,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:21,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:10:21,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:21,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:21,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:21,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:21,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:21,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:21,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:21,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:21,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:10:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:21,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:21,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:10:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:21,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:21,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:21,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:21,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:10:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:22,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:22,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:22,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:22,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:10:22,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:10:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:22,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:22,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:22,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:22,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:10:22,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:10:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:22,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:22,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:22,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:22,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:22,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:22,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:22,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:22,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:22,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:10:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:22,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:22,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:22,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-02-24 03:10:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:22,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:22,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:22,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-02-24 03:10:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:22,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:22,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:22,108 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 03:10:22,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299542485] [2021-02-24 03:10:22,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:22,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 03:10:22,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080910215] [2021-02-24 03:10:22,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 03:10:22,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:22,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 03:10:22,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-24 03:10:22,111 INFO L87 Difference]: Start difference. First operand 548 states and 594 transitions. Second operand 7 states. [2021-02-24 03:10:22,758 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:23,532 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:26,150 INFO L93 Difference]: Finished difference Result 1552 states and 1840 transitions. [2021-02-24 03:10:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:10:26,151 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2021-02-24 03:10:26,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:26,159 INFO L225 Difference]: With dead ends: 1552 [2021-02-24 03:10:26,159 INFO L226 Difference]: Without dead ends: 1119 [2021-02-24 03:10:26,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-02-24 03:10:26,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2021-02-24 03:10:26,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 946. [2021-02-24 03:10:26,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2021-02-24 03:10:26,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1058 transitions. [2021-02-24 03:10:26,548 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1058 transitions. Word has length 217 [2021-02-24 03:10:26,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:26,548 INFO L480 AbstractCegarLoop]: Abstraction has 946 states and 1058 transitions. [2021-02-24 03:10:26,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 03:10:26,548 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1058 transitions. [2021-02-24 03:10:26,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-02-24 03:10:26,552 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:26,553 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:26,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 03:10:26,553 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:26,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:26,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1936168699, now seen corresponding path program 1 times [2021-02-24 03:10:26,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:26,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858181187] [2021-02-24 03:10:26,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:26,557 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:26,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:26,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:10:26,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,945 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:26,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:27,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:27,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 03:10:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-24 03:10:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:27,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-24 03:10:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:27,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:10:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:10:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:10:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,120 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-24 03:10:27,121 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-24 03:10:27,147 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-24 03:10:27,148 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-24 03:10:27,175 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-24 03:10:27,176 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-24 03:10:27,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:27,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:27,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:27,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:27,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:27,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:10:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-02-24 03:10:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-02-24 03:10:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:27,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:27,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:27,412 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 03:10:27,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858181187] [2021-02-24 03:10:27,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:27,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-24 03:10:27,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231640118] [2021-02-24 03:10:27,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-24 03:10:27,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:27,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-24 03:10:27,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2021-02-24 03:10:27,414 INFO L87 Difference]: Start difference. First operand 946 states and 1058 transitions. Second operand 20 states. [2021-02-24 03:10:28,084 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:28,610 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:10:29,010 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:10:29,387 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:29,770 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:10:30,119 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:31,196 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:32,643 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:33,063 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:33,543 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:33,977 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:34,426 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:34,879 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:35,257 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:35,677 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:36,119 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:36,635 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:37,058 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:37,466 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:38,299 WARN L202 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2021-02-24 03:10:39,167 WARN L202 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2021-02-24 03:10:39,914 WARN L202 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2021-02-24 03:10:41,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:41,958 INFO L93 Difference]: Finished difference Result 1902 states and 2196 transitions. [2021-02-24 03:10:41,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-24 03:10:41,959 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 222 [2021-02-24 03:10:41,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:41,966 INFO L225 Difference]: With dead ends: 1902 [2021-02-24 03:10:41,966 INFO L226 Difference]: Without dead ends: 1071 [2021-02-24 03:10:41,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=497, Invalid=2155, Unknown=0, NotChecked=0, Total=2652 [2021-02-24 03:10:41,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2021-02-24 03:10:42,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 903. [2021-02-24 03:10:42,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 903 states. [2021-02-24 03:10:42,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 996 transitions. [2021-02-24 03:10:42,403 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 996 transitions. Word has length 222 [2021-02-24 03:10:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:42,403 INFO L480 AbstractCegarLoop]: Abstraction has 903 states and 996 transitions. [2021-02-24 03:10:42,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-24 03:10:42,403 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 996 transitions. [2021-02-24 03:10:42,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-02-24 03:10:42,409 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:42,409 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:42,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 03:10:42,410 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:42,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:42,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1415039513, now seen corresponding path program 1 times [2021-02-24 03:10:42,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:42,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526267293] [2021-02-24 03:10:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:42,506 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,535 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,544 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,549 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,600 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:42,610 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:42,614 WARN L141 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-02-24 03:10:42,616 WARN L147 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size 39 [2021-02-24 03:10:42,618 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,622 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,625 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,629 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,684 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:42,686 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:42,688 WARN L141 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-02-24 03:10:42,690 WARN L147 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size 39 [2021-02-24 03:10:42,692 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,696 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,698 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,702 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,749 WARN L141 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size [2021-02-24 03:10:42,754 INFO L723 QuantifierPusher]: Distributing 11 disjuncts over 3 conjuncts [2021-02-24 03:10:42,760 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:42,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:10:42,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:42,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-24 03:10:42,774 WARN L147 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size 46 [2021-02-24 03:10:42,781 WARN L141 QuantifierPusher]: treesize reduction 20, result has 85.5 percent of original size [2021-02-24 03:10:42,785 WARN L147 QuantifierPusher]: treesize reduction 20, result has 85.5 percent of original size 118 [2021-02-24 03:10:42,788 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,791 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,793 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,797 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,844 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:42,846 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:42,848 WARN L141 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-02-24 03:10:42,849 WARN L147 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size 39 [2021-02-24 03:10:42,851 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,855 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,857 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,860 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,907 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:42,909 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:42,911 WARN L141 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-02-24 03:10:42,912 WARN L147 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size 39 [2021-02-24 03:10:42,914 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,917 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,919 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:42,948 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:42,996 WARN L141 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size [2021-02-24 03:10:42,998 INFO L723 QuantifierPusher]: Distributing 11 disjuncts over 3 conjuncts [2021-02-24 03:10:43,001 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:43,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:10:43,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:43,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-24 03:10:43,011 WARN L147 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size 46 [2021-02-24 03:10:43,017 WARN L141 QuantifierPusher]: treesize reduction 20, result has 85.5 percent of original size [2021-02-24 03:10:43,021 WARN L147 QuantifierPusher]: treesize reduction 20, result has 85.5 percent of original size 118 [2021-02-24 03:10:43,023 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:43,026 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:43,028 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:43,031 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:43,079 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:43,080 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:43,082 WARN L141 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-02-24 03:10:43,083 WARN L147 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size 39 [2021-02-24 03:10:43,085 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:43,088 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:43,090 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:43,092 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:43,140 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:43,141 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:43,143 WARN L141 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-02-24 03:10:43,145 WARN L147 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size 39 [2021-02-24 03:10:43,145 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 03:10:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:10:43,238 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:10:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:10:43,324 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:10:43,523 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:10:43,523 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:10:43,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-24 03:10:43,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:10:43 BoogieIcfgContainer [2021-02-24 03:10:43,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:10:43,552 INFO L168 Benchmark]: Toolchain (without parser) took 64211.40 ms. Allocated memory was 151.0 MB in the beginning and 679.5 MB in the end (delta: 528.5 MB). Free memory was 126.2 MB in the beginning and 545.1 MB in the end (delta: -418.9 MB). Peak memory consumption was 109.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:10:43,552 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:10:43,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.90 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 104.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:10:43,552 INFO L168 Benchmark]: Boogie Preprocessor took 152.24 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 100.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:10:43,553 INFO L168 Benchmark]: RCFGBuilder took 1513.84 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 100.7 MB in the beginning and 159.2 MB in the end (delta: -58.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 8.0 GB. [2021-02-24 03:10:43,553 INFO L168 Benchmark]: TraceAbstraction took 61979.73 ms. Allocated memory was 187.7 MB in the beginning and 679.5 MB in the end (delta: 491.8 MB). Free memory was 158.7 MB in the beginning and 545.1 MB in the end (delta: -386.4 MB). Peak memory consumption was 104.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:10:43,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 542.90 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 104.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 152.24 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 100.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1513.84 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 100.7 MB in the beginning and 159.2 MB in the end (delta: -58.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 61979.73 ms. Allocated memory was 187.7 MB in the beginning and 679.5 MB in the end (delta: 491.8 MB). Free memory was 158.7 MB in the beginning and 545.1 MB in the end (delta: -386.4 MB). Peak memory consumption was 104.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 889]: 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; [L482] int waterLevel = 1; [L483] int methaneLevelCritical = 0; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L751] int cleanupTimeShifts = 4; [L827] int retValue_acc ; [L828] int tmp ; [L832] FCALL select_helpers() [L833] FCALL select_features() [L834] CALL, EXPR valid_product() [L876] int retValue_acc ; [L879] retValue_acc = 1 [L880] return (retValue_acc); [L834] RET, EXPR valid_product() [L834] tmp = valid_product() [L836] COND TRUE \read(tmp) [L838] FCALL setup() [L839] CALL runTest() [L818] CALL test() [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) [L434] CALL waterRise() [L500] COND TRUE waterLevel < 2 [L501] waterLevel = waterLevel + 1 [L434] RET waterRise() [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L465] CALL timeShift() [L588] COND FALSE !(\read(pumpRunning)) [L595] COND TRUE \read(systemActive) [L597] CALL processEnvironment() [L617] int tmp ; [L620] COND TRUE ! pumpRunning [L622] CALL, EXPR isHighWaterLevel() [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L738] CALL, EXPR isHighWaterSensorDry() [L562] int retValue_acc ; [L565] COND FALSE !(waterLevel < 2) [L569] retValue_acc = 0 [L570] return (retValue_acc); [L738] RET, EXPR isHighWaterSensorDry() [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); [L622] RET, EXPR isHighWaterLevel() [L622] tmp = isHighWaterLevel() [L624] COND TRUE \read(tmp) [L626] CALL activatePump() [L651] int tmp ; [L655] CALL, EXPR isMethaneAlarm() [L676] int retValue_acc ; [L680] CALL, EXPR isMethaneLevelCritical() [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); [L680] RET, EXPR isMethaneLevelCritical() [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); [L655] RET, EXPR isMethaneAlarm() [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) [L661] CALL activatePump__wrappee__highWaterSensor() [L645] pumpRunning = 1 [L661] RET activatePump__wrappee__highWaterSensor() [L626] RET activatePump() [L597] RET processEnvironment() [L603] CALL __utac_acc__Specification1_spec__1() [L895] int tmp ; [L896] int tmp___0 ; [L900] CALL, EXPR isMethaneLevelCritical() [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); [L900] RET, EXPR isMethaneLevelCritical() [L900] tmp = isMethaneLevelCritical() [L902] COND FALSE !(\read(tmp)) [L603] RET __utac_acc__Specification1_spec__1() [L465] RET timeShift() [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp)) [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) [L444] CALL changeMethaneLevel() [L512] COND FALSE !(\read(methaneLevelCritical)) [L515] methaneLevelCritical = 1 [L444] RET changeMethaneLevel() [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L465] CALL timeShift() [L588] COND TRUE \read(pumpRunning) [L590] CALL lowerWaterLevel() [L488] COND TRUE waterLevel > 0 [L489] waterLevel = waterLevel - 1 [L590] RET lowerWaterLevel() [L595] COND TRUE \read(systemActive) [L597] CALL processEnvironment() [L617] int tmp ; [L620] COND FALSE !(! pumpRunning) [L635] FCALL processEnvironment__wrappee__base() [L597] RET processEnvironment() [L603] CALL __utac_acc__Specification1_spec__1() [L895] int tmp ; [L896] int tmp___0 ; [L900] CALL, EXPR isMethaneLevelCritical() [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); [L900] RET, EXPR isMethaneLevelCritical() [L900] tmp = isMethaneLevelCritical() [L902] COND TRUE \read(tmp) [L904] CALL, EXPR isPumpRunning() [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); [L904] RET, EXPR isPumpRunning() [L904] tmp___0 = isPumpRunning() [L906] COND TRUE \read(tmp___0) [L908] CALL __automaton_fail() [L889] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 61.8s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 51.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2484 SDtfs, 4886 SDslu, 5576 SDs, 0 SdLazy, 10501 SolverSat, 1424 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 430 GetRequests, 265 SyntacticMatches, 4 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 28.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=946occurred 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: 2.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 964 StatesRemovedByMinimization, 10 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...