/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_spec4_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:38:12,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:38:12,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:38:12,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:38:12,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:38:12,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:38:12,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:38:12,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:38:12,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:38:12,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:38:12,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:38:12,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:38:12,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:38:12,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:38:12,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:38:12,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:38:12,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:38:12,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:38:12,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:38:12,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:38:12,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:38:12,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:38:12,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:38:12,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:38:12,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:38:12,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:38:12,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:38:12,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:38:12,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:38:12,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:38:12,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:38:12,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:38:12,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:38:12,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:38:12,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:38:12,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:38:12,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:38:12,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:38:12,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:38:12,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:38:12,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:38:12,162 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 03:38:12,174 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:38:12,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:38:12,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:38:12,176 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:38:12,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:38:12,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:38:12,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:38:12,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:38:12,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:38:12,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:38:12,178 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:38:12,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:38:12,179 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:38:12,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:38:12,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:38:12,179 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:38:12,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:38:12,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:38:12,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:38:12,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:38:12,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:38:12,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:38:12,181 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:38:12,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:38:12,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:38:12,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:38:12,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:38:12,585 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:38:12,586 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:38:12,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product44.cil.c [2021-02-24 03:38:12,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b436b6eac/2ff7429974a240469c7e68ec5065f19c/FLAGe07de4994 [2021-02-24 03:38:13,360 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:38:13,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product44.cil.c [2021-02-24 03:38:13,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b436b6eac/2ff7429974a240469c7e68ec5065f19c/FLAGe07de4994 [2021-02-24 03:38:13,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b436b6eac/2ff7429974a240469c7e68ec5065f19c [2021-02-24 03:38:13,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:38:13,696 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:38:13,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:38:13,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:38:13,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:38:13,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:38:13" (1/1) ... [2021-02-24 03:38:13,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76008682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:13, skipping insertion in model container [2021-02-24 03:38:13,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:38:13" (1/1) ... [2021-02-24 03:38:13,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:38:13,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:38:14,038 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_spec4_product44.cil.c[15482,15495] [2021-02-24 03:38:14,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:38:14,070 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:38:14,148 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_spec4_product44.cil.c[15482,15495] [2021-02-24 03:38:14,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:38:14,200 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:38:14,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:14 WrapperNode [2021-02-24 03:38:14,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:38:14,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:38:14,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:38:14,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:38:14,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:14" (1/1) ... [2021-02-24 03:38:14,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:14" (1/1) ... [2021-02-24 03:38:14,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:14" (1/1) ... [2021-02-24 03:38:14,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:14" (1/1) ... [2021-02-24 03:38:14,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:14" (1/1) ... [2021-02-24 03:38:14,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:14" (1/1) ... [2021-02-24 03:38:14,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:14" (1/1) ... [2021-02-24 03:38:14,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:38:14,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:38:14,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:38:14,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:38:14,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:14" (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 03:38:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:38:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:38:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:38:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:38:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-24 03:38:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:38:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:38:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:38:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:38:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:38:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:38:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:38:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:38:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:38:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:38:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:38:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:38:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:38:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:38:14,463 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:38:14,464 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:38:14,464 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:38:14,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:38:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:38:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:38:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:38:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-24 03:38:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-24 03:38:14,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:38:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:38:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:38:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:38:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:38:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:38:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:38:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:38:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:38:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:38:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:38:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:38:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:38:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:38:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:38:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:38:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:38:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:38:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:38:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:38:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:38:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:38:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-24 03:38:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:38:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:38:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:38:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:38:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:38:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:38:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:38:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:38:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:38:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:38:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:38:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:38:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:38:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:38:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:38:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:38:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:38:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:38:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:38:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:38:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:38:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-24 03:38:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-24 03:38:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:38:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:38:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:38:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:38:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:38:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:38:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:38:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:38:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:38:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:38:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:38:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:38:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:38:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:38:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:38:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:38:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:38:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:38:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:38:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:38:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:38:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:38:15,685 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:38:15,685 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:38:15,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:38:15 BoogieIcfgContainer [2021-02-24 03:38:15,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:38:15,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:38:15,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:38:15,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:38:15,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:38:13" (1/3) ... [2021-02-24 03:38:15,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ad86eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:38:15, skipping insertion in model container [2021-02-24 03:38:15,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:14" (2/3) ... [2021-02-24 03:38:15,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ad86eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:38:15, skipping insertion in model container [2021-02-24 03:38:15,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:38:15" (3/3) ... [2021-02-24 03:38:15,698 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2021-02-24 03:38:15,705 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:38:15,712 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:38:15,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:38:15,760 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:38:15,760 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:38:15,760 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:38:15,760 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:38:15,761 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:38:15,761 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:38:15,761 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:38:15,761 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:38:15,787 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2021-02-24 03:38:15,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-24 03:38:15,809 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:15,810 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 03:38:15,811 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:15,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:15,818 INFO L82 PathProgramCache]: Analyzing trace with hash -421456433, now seen corresponding path program 1 times [2021-02-24 03:38:15,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:15,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851516707] [2021-02-24 03:38:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:15,912 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:16,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:16,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:16,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:16,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:16,648 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:16,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:16,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:16,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:16,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:16,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:16,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:16,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:16,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:16,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:16,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:16,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:16,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:16,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:16,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:16,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:16,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:38:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:16,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:16,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:16,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:38:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:16,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:16,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:16,861 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 03:38:16,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851516707] [2021-02-24 03:38:16,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:16,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:38:16,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191194426] [2021-02-24 03:38:16,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:38:16,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:16,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:38:16,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:38:16,892 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 3 states. [2021-02-24 03:38:18,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:18,603 INFO L93 Difference]: Finished difference Result 500 states and 588 transitions. [2021-02-24 03:38:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:38:18,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-24 03:38:18,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:18,622 INFO L225 Difference]: With dead ends: 500 [2021-02-24 03:38:18,623 INFO L226 Difference]: Without dead ends: 311 [2021-02-24 03:38:18,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:38:18,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-02-24 03:38:18,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 267. [2021-02-24 03:38:18,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2021-02-24 03:38:18,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 287 transitions. [2021-02-24 03:38:18,818 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 287 transitions. Word has length 147 [2021-02-24 03:38:18,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:18,819 INFO L480 AbstractCegarLoop]: Abstraction has 267 states and 287 transitions. [2021-02-24 03:38:18,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:38:18,820 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 287 transitions. [2021-02-24 03:38:18,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-24 03:38:18,824 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:18,825 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 03:38:18,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:38:18,825 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:18,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:18,826 INFO L82 PathProgramCache]: Analyzing trace with hash -557085128, now seen corresponding path program 1 times [2021-02-24 03:38:18,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:18,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461343395] [2021-02-24 03:38:18,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:18,832 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:18,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:18,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:19,283 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:19,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:19,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:19,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:19,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:19,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:19,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:19,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:19,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:19,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:19,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:19,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:19,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:19,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:19,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:19,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:19,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:38:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:19,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:19,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:19,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:38:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:19,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:19,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:19,397 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 03:38:19,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461343395] [2021-02-24 03:38:19,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:19,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:38:19,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597284633] [2021-02-24 03:38:19,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:38:19,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:19,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:38:19,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:38:19,404 INFO L87 Difference]: Start difference. First operand 267 states and 287 transitions. Second operand 4 states. [2021-02-24 03:38:20,137 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:38:21,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:21,224 INFO L93 Difference]: Finished difference Result 403 states and 448 transitions. [2021-02-24 03:38:21,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:38:21,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-24 03:38:21,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:21,239 INFO L225 Difference]: With dead ends: 403 [2021-02-24 03:38:21,240 INFO L226 Difference]: Without dead ends: 294 [2021-02-24 03:38:21,246 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 03:38:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-02-24 03:38:21,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 257. [2021-02-24 03:38:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2021-02-24 03:38:21,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 274 transitions. [2021-02-24 03:38:21,360 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 274 transitions. Word has length 148 [2021-02-24 03:38:21,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:21,361 INFO L480 AbstractCegarLoop]: Abstraction has 257 states and 274 transitions. [2021-02-24 03:38:21,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:38:21,361 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 274 transitions. [2021-02-24 03:38:21,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-02-24 03:38:21,364 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:21,365 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] [2021-02-24 03:38:21,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:38:21,365 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:21,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:21,366 INFO L82 PathProgramCache]: Analyzing trace with hash -283718012, now seen corresponding path program 1 times [2021-02-24 03:38:21,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:21,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308835078] [2021-02-24 03:38:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:21,370 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:21,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:21,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:21,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:21,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:21,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:21,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:21,840 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:21,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:21,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:21,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:21,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:21,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:21,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:21,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:21,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:21,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:21,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:21,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:21,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:21,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-24 03:38:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:21,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:21,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-24 03:38:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:21,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:21,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 03:38:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:21,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:21,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:22,036 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 03:38:22,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308835078] [2021-02-24 03:38:22,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:22,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:38:22,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022275140] [2021-02-24 03:38:22,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:38:22,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:22,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:38:22,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:38:22,039 INFO L87 Difference]: Start difference. First operand 257 states and 274 transitions. Second operand 10 states. [2021-02-24 03:38:22,718 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:23,102 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:23,479 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:38:23,864 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:24,184 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:24,543 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:25,537 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:38:28,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:28,093 INFO L93 Difference]: Finished difference Result 696 states and 800 transitions. [2021-02-24 03:38:28,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:38:28,094 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2021-02-24 03:38:28,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:28,098 INFO L225 Difference]: With dead ends: 696 [2021-02-24 03:38:28,099 INFO L226 Difference]: Without dead ends: 554 [2021-02-24 03:38:28,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-24 03:38:28,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-02-24 03:38:28,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 447. [2021-02-24 03:38:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2021-02-24 03:38:28,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 491 transitions. [2021-02-24 03:38:28,291 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 491 transitions. Word has length 161 [2021-02-24 03:38:28,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:28,292 INFO L480 AbstractCegarLoop]: Abstraction has 447 states and 491 transitions. [2021-02-24 03:38:28,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:38:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 491 transitions. [2021-02-24 03:38:28,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-24 03:38:28,296 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:28,297 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] [2021-02-24 03:38:28,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:38:28,297 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:28,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:28,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1009952521, now seen corresponding path program 1 times [2021-02-24 03:38:28,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:28,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258910516] [2021-02-24 03:38:28,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:28,302 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:28,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:28,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:28,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:28,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:28,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:28,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:28,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:28,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:28,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:28,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:28,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:28,754 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:28,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:28,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:28,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:38:28,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:28,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:28,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:28,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:28,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:28,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:28,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:28,876 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:38:28,880 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:38:28,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:28,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:28,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:38:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:28,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:28,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-24 03:38:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:28,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:28,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:28,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:28,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 03:38:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:28,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:28,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:29,002 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 03:38:29,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258910516] [2021-02-24 03:38:29,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:29,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 03:38:29,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568076136] [2021-02-24 03:38:29,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 03:38:29,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:29,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 03:38:29,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-24 03:38:29,005 INFO L87 Difference]: Start difference. First operand 447 states and 491 transitions. Second operand 14 states. [2021-02-24 03:38:29,729 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:30,218 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:30,602 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:30,993 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:31,380 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:31,711 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:32,472 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:38:33,681 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:34,084 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:34,573 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:34,996 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:35,369 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:38:35,714 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:36,087 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:36,450 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:36,816 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:37,280 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:37,758 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:38:38,161 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:38,557 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:41,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:41,165 INFO L93 Difference]: Finished difference Result 1529 states and 1878 transitions. [2021-02-24 03:38:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-24 03:38:41,166 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2021-02-24 03:38:41,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:41,175 INFO L225 Difference]: With dead ends: 1529 [2021-02-24 03:38:41,176 INFO L226 Difference]: Without dead ends: 1197 [2021-02-24 03:38:41,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-24 03:38:41,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2021-02-24 03:38:41,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1058. [2021-02-24 03:38:41,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1058 states. [2021-02-24 03:38:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1216 transitions. [2021-02-24 03:38:41,668 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1216 transitions. Word has length 166 [2021-02-24 03:38:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:41,669 INFO L480 AbstractCegarLoop]: Abstraction has 1058 states and 1216 transitions. [2021-02-24 03:38:41,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 03:38:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1216 transitions. [2021-02-24 03:38:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-24 03:38:41,674 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:41,674 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] [2021-02-24 03:38:41,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:38:41,675 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:41,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:41,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1069399283, now seen corresponding path program 1 times [2021-02-24 03:38:41,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:41,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201889517] [2021-02-24 03:38:41,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:41,679 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:41,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:41,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:41,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:41,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:41,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:41,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:41,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:41,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:41,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:41,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:41,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:41,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:41,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:41,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:42,082 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:42,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:42,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:42,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:42,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:42,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:42,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:42,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:42,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:42,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:42,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:42,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:42,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:42,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:42,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:42,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:42,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:42,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:42,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:38:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:42,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:42,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:42,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:38:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:42,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:42,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:42,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 03:38:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:42,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:42,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:42,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 03:38:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:42,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:42,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:42,248 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 03:38:42,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201889517] [2021-02-24 03:38:42,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:42,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:38:42,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522045208] [2021-02-24 03:38:42,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:38:42,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:42,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:38:42,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:38:42,251 INFO L87 Difference]: Start difference. First operand 1058 states and 1216 transitions. Second operand 6 states. [2021-02-24 03:38:42,811 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:45,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:45,377 INFO L93 Difference]: Finished difference Result 2469 states and 2983 transitions. [2021-02-24 03:38:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 03:38:45,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2021-02-24 03:38:45,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:45,397 INFO L225 Difference]: With dead ends: 2469 [2021-02-24 03:38:45,397 INFO L226 Difference]: Without dead ends: 1526 [2021-02-24 03:38:45,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:38:45,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2021-02-24 03:38:46,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1423. [2021-02-24 03:38:46,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2021-02-24 03:38:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1647 transitions. [2021-02-24 03:38:46,022 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1647 transitions. Word has length 171 [2021-02-24 03:38:46,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:46,023 INFO L480 AbstractCegarLoop]: Abstraction has 1423 states and 1647 transitions. [2021-02-24 03:38:46,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:38:46,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1647 transitions. [2021-02-24 03:38:46,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-02-24 03:38:46,029 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:46,030 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:46,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:38:46,030 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:46,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:46,031 INFO L82 PathProgramCache]: Analyzing trace with hash -797583530, now seen corresponding path program 1 times [2021-02-24 03:38:46,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:46,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736438275] [2021-02-24 03:38:46,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:46,109 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:46,139 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:46,155 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:46,169 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:46,231 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:46,243 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:46,251 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:46,254 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:46,259 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:46,265 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:46,270 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:46,276 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:46,333 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-24 03:38:46,339 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-24 03:38:46,345 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:46,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:46,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:46,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-24 03:38:46,362 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-24 03:38:46,371 WARN L141 QuantifierPusher]: treesize reduction 14, result has 89.8 percent of original size [2021-02-24 03:38:46,378 WARN L147 QuantifierPusher]: treesize reduction 14, result has 89.8 percent of original size 123 [2021-02-24 03:38:46,382 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:46,388 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:46,392 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:46,397 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:46,447 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:46,448 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:46,451 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:46,453 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:46,457 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:46,464 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:46,468 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:46,474 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:46,524 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:46,526 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:46,529 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:46,531 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:46,538 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:46,542 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:46,546 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:46,551 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:46,605 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:46,608 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:46,611 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:46,613 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:46,617 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:46,623 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:46,627 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:46,633 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:46,684 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:46,685 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:46,688 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:46,690 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:46,694 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:46,701 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:46,705 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:46,709 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:46,758 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:46,761 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:46,765 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:46,768 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:46,771 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:46,775 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:46,779 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:46,785 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:46,835 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:46,837 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:46,840 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:46,842 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:46,843 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 03:38:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:46,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:46,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:46,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:46,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:46,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:46,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:46,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:46,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:46,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:46,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:47,218 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:47,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:47,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:47,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:47,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:47,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:47,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:47,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:47,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:47,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:47,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:47,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:38:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:47,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:47,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 03:38:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:47,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:47,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-02-24 03:38:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:47,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:47,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:47,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:47,346 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 03:38:47,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:47,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:47,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:47,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:47,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-24 03:38:47,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-02-24 03:38:47,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:47,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:47,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:47,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:47,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:47,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:47,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:47,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:47,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:47,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:47,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:47,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:47,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:47,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:47,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 03:38:47,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:38:47,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:47,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:47,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:47,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:47,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:47,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:47,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:47,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:47,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:47,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 03:38:47,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:47,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:47,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:47,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:47,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:47,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:47,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 03:38:47,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:38:47,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:47,738 WARN L141 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-02-24 03:38:47,739 WARN L147 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size 7 [2021-02-24 03:38:47,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:38:47,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 03:38:47,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:47,863 WARN L141 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-02-24 03:38:47,863 WARN L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-02-24 03:38:47,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 03:38:47,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:38:47,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:47,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:48,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:48,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:48,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:48,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 03:38:48,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:48,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 03:38:48,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 03:38:48,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 03:38:48,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:48,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:48,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 03:38:48,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:48,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:48,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:48,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:48,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:48,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:48,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:48,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:48,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:48,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:48,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:48,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:48,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:48,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:48,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 03:38:48,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:38:48,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:38:48,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:48,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:48,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:48,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:48,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:48,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 03:38:48,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:48,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:48,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736438275] [2021-02-24 03:38:48,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:48,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-02-24 03:38:48,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215337053] [2021-02-24 03:38:48,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-24 03:38:48,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:48,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-24 03:38:48,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2021-02-24 03:38:48,690 INFO L87 Difference]: Start difference. First operand 1423 states and 1647 transitions. Second operand 40 states. [2021-02-24 03:38:49,346 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:50,018 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:50,433 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:38:50,839 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:51,205 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:38:51,622 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:52,083 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:52,497 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:52,920 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:38:53,327 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:53,709 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:54,246 WARN L202 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:38:54,776 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:55,282 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:38:55,767 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:56,277 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:56,877 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:57,398 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:57,989 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:58,486 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-24 03:38:59,369 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:39:00,111 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:39:00,588 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:39:01,019 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:39:01,471 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:39:01,903 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:02,325 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:39:02,757 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:03,220 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:39:04,310 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-02-24 03:39:05,350 WARN L202 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2021-02-24 03:39:08,276 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:39:09,797 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:39:10,662 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:11,222 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:11,810 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-24 03:39:12,657 WARN L202 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 214 [2021-02-24 03:39:13,183 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:14,133 WARN L202 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 216 [2021-02-24 03:39:14,712 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:15,318 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-24 03:39:15,663 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:39:17,543 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:39:18,023 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:39:18,506 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:19,203 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:19,664 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:20,515 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:21,093 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:22,697 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-24 03:39:23,721 WARN L202 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2021-02-24 03:39:24,677 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:39:26,039 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:26,439 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:39:26,851 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:27,291 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:39:27,688 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:28,124 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:28,513 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:29,048 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:39:34,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:39:34,996 INFO L93 Difference]: Finished difference Result 2987 states and 3740 transitions. [2021-02-24 03:39:34,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2021-02-24 03:39:34,997 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 214 [2021-02-24 03:39:34,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:39:35,009 INFO L225 Difference]: With dead ends: 2987 [2021-02-24 03:39:35,009 INFO L226 Difference]: Without dead ends: 1679 [2021-02-24 03:39:35,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47859 ImplicationChecksByTransitivity, 38.3s TimeCoverageRelationStatistics Valid=9056, Invalid=100836, Unknown=0, NotChecked=0, Total=109892 [2021-02-24 03:39:35,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2021-02-24 03:39:35,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 940. [2021-02-24 03:39:35,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2021-02-24 03:39:35,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1063 transitions. [2021-02-24 03:39:35,513 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1063 transitions. Word has length 214 [2021-02-24 03:39:35,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:39:35,514 INFO L480 AbstractCegarLoop]: Abstraction has 940 states and 1063 transitions. [2021-02-24 03:39:35,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-24 03:39:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1063 transitions. [2021-02-24 03:39:35,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-02-24 03:39:35,522 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:39:35,522 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:35,522 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:39:35,523 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:39:35,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:39:35,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1680420249, now seen corresponding path program 1 times [2021-02-24 03:39:35,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:39:35,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941822503] [2021-02-24 03:39:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:39:35,553 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 03:39:35,556 INFO L168 Benchmark]: Toolchain (without parser) took 81873.01 ms. Allocated memory was 161.5 MB in the beginning and 810.5 MB in the end (delta: 649.1 MB). Free memory was 136.8 MB in the beginning and 429.1 MB in the end (delta: -292.2 MB). Peak memory consumption was 357.6 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:35,557 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 161.5 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:39:35,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.35 ms. Allocated memory is still 161.5 MB. Free memory was 135.6 MB in the beginning and 114.7 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:35,557 INFO L168 Benchmark]: Boogie Preprocessor took 110.16 ms. Allocated memory is still 161.5 MB. Free memory was 114.7 MB in the beginning and 110.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:35,557 INFO L168 Benchmark]: RCFGBuilder took 1376.19 ms. Allocated memory was 161.5 MB in the beginning and 209.7 MB in the end (delta: 48.2 MB). Free memory was 110.6 MB in the beginning and 178.5 MB in the end (delta: -67.9 MB). Peak memory consumption was 61.3 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:35,558 INFO L168 Benchmark]: TraceAbstraction took 79865.07 ms. Allocated memory was 209.7 MB in the beginning and 810.5 MB in the end (delta: 600.8 MB). Free memory was 178.5 MB in the beginning and 429.1 MB in the end (delta: -250.6 MB). Peak memory consumption was 350.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:35,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 161.5 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 503.35 ms. Allocated memory is still 161.5 MB. Free memory was 135.6 MB in the beginning and 114.7 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.16 ms. Allocated memory is still 161.5 MB. Free memory was 114.7 MB in the beginning and 110.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1376.19 ms. Allocated memory was 161.5 MB in the beginning and 209.7 MB in the end (delta: 48.2 MB). Free memory was 110.6 MB in the beginning and 178.5 MB in the end (delta: -67.9 MB). Peak memory consumption was 61.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 79865.07 ms. Allocated memory was 209.7 MB in the beginning and 810.5 MB in the end (delta: 600.8 MB). Free memory was 178.5 MB in the beginning and 429.1 MB in the end (delta: -250.6 MB). Peak memory consumption was 350.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...