/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:09:41,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:09:41,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:09:41,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:09:41,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:09:41,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:09:41,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:09:41,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:09:41,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:09:41,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:09:41,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:09:41,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:09:41,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:09:41,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:09:41,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:09:41,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:09:41,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:09:41,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:09:41,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:09:41,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:09:41,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:09:41,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:09:41,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:09:41,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:09:41,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:09:41,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:09:41,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:09:41,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:09:41,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:09:41,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:09:41,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:09:41,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:09:41,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:09:41,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:09:41,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:09:41,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:09:41,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:09:41,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:09:41,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:09:41,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:09:41,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:09:41,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:09:41,737 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:09:41,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:09:41,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:09:41,740 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:09:41,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:09:41,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:09:41,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:09:41,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:09:41,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:09:41,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:09:41,741 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:09:41,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:09:41,742 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:09:41,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:09:41,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:09:41,743 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:09:41,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:09:41,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:09:41,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:09:41,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:09:41,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:09:41,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:09:41,745 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:09:41,745 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:09:42,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:09:42,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:09:42,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:09:42,148 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:09:42,149 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:09:42,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2021-02-24 03:09:42,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1f896f8/b69952d405fd4c97aa7389dd0052b912/FLAG850d8979f [2021-02-24 03:09:42,934 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:09:42,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2021-02-24 03:09:42,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1f896f8/b69952d405fd4c97aa7389dd0052b912/FLAG850d8979f [2021-02-24 03:09:43,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1f896f8/b69952d405fd4c97aa7389dd0052b912 [2021-02-24 03:09:43,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:09:43,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:09:43,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:09:43,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:09:43,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:09:43,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:09:43" (1/1) ... [2021-02-24 03:09:43,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc177f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43, skipping insertion in model container [2021-02-24 03:09:43,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:09:43" (1/1) ... [2021-02-24 03:09:43,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:09:43,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:09:43,609 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c[6057,6070] [2021-02-24 03:09:43,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:09:43,730 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:09:43,767 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c[6057,6070] [2021-02-24 03:09:43,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:09:43,852 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:09:43,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43 WrapperNode [2021-02-24 03:09:43,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:09:43,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:09:43,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:09:43,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:09:43,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43" (1/1) ... [2021-02-24 03:09:43,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43" (1/1) ... [2021-02-24 03:09:43,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43" (1/1) ... [2021-02-24 03:09:43,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43" (1/1) ... [2021-02-24 03:09:43,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43" (1/1) ... [2021-02-24 03:09:44,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43" (1/1) ... [2021-02-24 03:09:44,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43" (1/1) ... [2021-02-24 03:09:44,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:09:44,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:09:44,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:09:44,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:09:44,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:09:44,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:09:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:09:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:09:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:09:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:09:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:09:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:09:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:09:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:09:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:09:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:09:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:09:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:09:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:09:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:09:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:09:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:09:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:09:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:09:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:09:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:09:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-24 03:09:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:09:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:09:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-24 03:09:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:09:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:09:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:09:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:09:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:09:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:09:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:09:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:09:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:09:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:09:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:09:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:09:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:09:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:09:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:09:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:09:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:09:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:09:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:09:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:09:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:09:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:09:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:09:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:09:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:09:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:09:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:09:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:09:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:09:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:09:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:09:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:09:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:09:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-24 03:09:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-24 03:09:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:09:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:09:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:09:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:09:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:09:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:09:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:09:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:09:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:09:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:09:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:09:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:09:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:09:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:09:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:09:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:09:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:09:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:09:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:09:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:09:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:09:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:09:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:09:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:09:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:09:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:09:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:09:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:09:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:09:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:09:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:09:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:09:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:09:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:09:45,367 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:09:45,368 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:09:45,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:09:45 BoogieIcfgContainer [2021-02-24 03:09:45,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:09:45,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:09:45,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:09:45,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:09:45,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:09:43" (1/3) ... [2021-02-24 03:09:45,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eee68ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:09:45, skipping insertion in model container [2021-02-24 03:09:45,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:43" (2/3) ... [2021-02-24 03:09:45,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eee68ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:09:45, skipping insertion in model container [2021-02-24 03:09:45,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:09:45" (3/3) ... [2021-02-24 03:09:45,381 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2021-02-24 03:09:45,388 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:09:45,395 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:09:45,416 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:09:45,440 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:09:45,440 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:09:45,440 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:09:45,440 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:09:45,441 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:09:45,441 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:09:45,441 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:09:45,441 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:09:45,464 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2021-02-24 03:09:45,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-24 03:09:45,483 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:45,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:09:45,484 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:45,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:45,491 INFO L82 PathProgramCache]: Analyzing trace with hash -892391196, now seen corresponding path program 1 times [2021-02-24 03:09:45,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:45,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680569107] [2021-02-24 03:09:45,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:45,587 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:45,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:45,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:45,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:45,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,296 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:46,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:46,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:46,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:46,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:46,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:46,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:46,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:09:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:46,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:46,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680569107] [2021-02-24 03:09:46,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:46,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:09:46,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96860715] [2021-02-24 03:09:46,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:09:46,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:46,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:09:46,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:09:46,600 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2021-02-24 03:09:48,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:48,372 INFO L93 Difference]: Finished difference Result 481 states and 570 transitions. [2021-02-24 03:09:48,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:09:48,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-24 03:09:48,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:48,389 INFO L225 Difference]: With dead ends: 481 [2021-02-24 03:09:48,390 INFO L226 Difference]: Without dead ends: 301 [2021-02-24 03:09:48,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:09:48,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-02-24 03:09:48,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 258. [2021-02-24 03:09:48,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2021-02-24 03:09:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 279 transitions. [2021-02-24 03:09:48,560 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 279 transitions. Word has length 147 [2021-02-24 03:09:48,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:48,561 INFO L480 AbstractCegarLoop]: Abstraction has 258 states and 279 transitions. [2021-02-24 03:09:48,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:09:48,562 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 279 transitions. [2021-02-24 03:09:48,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-24 03:09:48,566 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:48,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:09:48,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:09:48,567 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:48,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:48,567 INFO L82 PathProgramCache]: Analyzing trace with hash -690386559, now seen corresponding path program 1 times [2021-02-24 03:09:48,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:48,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205843415] [2021-02-24 03:09:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:48,572 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:48,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:48,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:48,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:48,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:48,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:48,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:49,082 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:49,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:49,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:49,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:49,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:49,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:49,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:49,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:49,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:49,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:49,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:49,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:49,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:49,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:49,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:49,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:49,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:09:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:49,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:49,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:49,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:09:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:49,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:49,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:49,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205843415] [2021-02-24 03:09:49,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:49,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:09:49,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774831092] [2021-02-24 03:09:49,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:09:49,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:49,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:09:49,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:09:49,238 INFO L87 Difference]: Start difference. First operand 258 states and 279 transitions. Second operand 4 states. [2021-02-24 03:09:50,037 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:51,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:51,110 INFO L93 Difference]: Finished difference Result 388 states and 434 transitions. [2021-02-24 03:09:51,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:09:51,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-24 03:09:51,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:51,115 INFO L225 Difference]: With dead ends: 388 [2021-02-24 03:09:51,115 INFO L226 Difference]: Without dead ends: 284 [2021-02-24 03:09:51,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:09:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-02-24 03:09:51,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 248. [2021-02-24 03:09:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2021-02-24 03:09:51,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 266 transitions. [2021-02-24 03:09:51,215 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 266 transitions. Word has length 148 [2021-02-24 03:09:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:51,216 INFO L480 AbstractCegarLoop]: Abstraction has 248 states and 266 transitions. [2021-02-24 03:09:51,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:09:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 266 transitions. [2021-02-24 03:09:51,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-24 03:09:51,219 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:51,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:09:51,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:09:51,220 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:51,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:51,220 INFO L82 PathProgramCache]: Analyzing trace with hash -910872212, now seen corresponding path program 1 times [2021-02-24 03:09:51,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:51,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135060262] [2021-02-24 03:09:51,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:51,225 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:51,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:51,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:51,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:51,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:51,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:51,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:51,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:51,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:51,680 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:51,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:51,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:51,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:09:51,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:51,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:51,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:51,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:51,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:51,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:51,801 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:09:51,802 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:09:51,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:51,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:51,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:09:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:51,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:51,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:09:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:51,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:51,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:51,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:51,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135060262] [2021-02-24 03:09:51,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:51,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:09:51,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849158936] [2021-02-24 03:09:51,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:09:51,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:51,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:09:51,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:09:51,887 INFO L87 Difference]: Start difference. First operand 248 states and 266 transitions. Second operand 9 states. [2021-02-24 03:09:52,492 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:52,919 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:53,312 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:09:53,739 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:54,079 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:54,448 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:55,660 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:57,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:57,921 INFO L93 Difference]: Finished difference Result 645 states and 737 transitions. [2021-02-24 03:09:57,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:09:57,922 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-24 03:09:57,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:57,928 INFO L225 Difference]: With dead ends: 645 [2021-02-24 03:09:57,928 INFO L226 Difference]: Without dead ends: 512 [2021-02-24 03:09:57,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-24 03:09:57,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-02-24 03:09:58,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 433. [2021-02-24 03:09:58,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2021-02-24 03:09:58,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 479 transitions. [2021-02-24 03:09:58,196 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 479 transitions. Word has length 157 [2021-02-24 03:09:58,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:58,198 INFO L480 AbstractCegarLoop]: Abstraction has 433 states and 479 transitions. [2021-02-24 03:09:58,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:09:58,198 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 479 transitions. [2021-02-24 03:09:58,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-24 03:09:58,206 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:58,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:09:58,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:09:58,207 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:58,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:58,208 INFO L82 PathProgramCache]: Analyzing trace with hash 596818493, now seen corresponding path program 1 times [2021-02-24 03:09:58,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:58,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644924303] [2021-02-24 03:09:58,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:58,213 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:58,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:58,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:58,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:58,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:58,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:58,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:58,712 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:58,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:58,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:58,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:58,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:58,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:58,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:58,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:58,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:58,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:58,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:58,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:58,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:09:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:58,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:58,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:58,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:58,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:58,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-24 03:09:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:58,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:58,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-24 03:09:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:58,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:58,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:58,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644924303] [2021-02-24 03:09:58,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:58,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:09:58,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838563352] [2021-02-24 03:09:58,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:09:58,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:58,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:09:58,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:09:58,972 INFO L87 Difference]: Start difference. First operand 433 states and 479 transitions. Second operand 6 states. [2021-02-24 03:09:59,571 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:01,661 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:02,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:02,438 INFO L93 Difference]: Finished difference Result 1061 states and 1242 transitions. [2021-02-24 03:10:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 03:10:02,439 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2021-02-24 03:10:02,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:02,445 INFO L225 Difference]: With dead ends: 1061 [2021-02-24 03:10:02,446 INFO L226 Difference]: Without dead ends: 743 [2021-02-24 03:10:02,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:10:02,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-02-24 03:10:02,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 627. [2021-02-24 03:10:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2021-02-24 03:10:02,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 693 transitions. [2021-02-24 03:10:02,818 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 693 transitions. Word has length 165 [2021-02-24 03:10:02,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:02,818 INFO L480 AbstractCegarLoop]: Abstraction has 627 states and 693 transitions. [2021-02-24 03:10:02,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:10:02,819 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 693 transitions. [2021-02-24 03:10:02,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-24 03:10:02,821 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:02,821 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 03:10:02,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:10:02,822 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:02,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:02,823 INFO L82 PathProgramCache]: Analyzing trace with hash -843970482, now seen corresponding path program 1 times [2021-02-24 03:10:02,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:02,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701811888] [2021-02-24 03:10:02,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:02,834 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:02,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:02,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:02,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:03,262 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:03,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:03,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:03,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:03,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:03,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:03,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:03,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:03,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:03,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:03,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:03,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:03,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:10:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:03,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:03,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-24 03:10:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:03,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:03,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:03,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:03,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 03:10:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:03,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:03,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:03,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:10:03,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701811888] [2021-02-24 03:10:03,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:03,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:10:03,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858150368] [2021-02-24 03:10:03,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:10:03,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:03,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:10:03,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:10:03,461 INFO L87 Difference]: Start difference. First operand 627 states and 693 transitions. Second operand 9 states. [2021-02-24 03:10:04,151 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:05,474 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:05,935 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:10:06,393 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:06,819 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:07,233 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:10:07,614 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:08,012 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:08,555 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:10,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:10,540 INFO L93 Difference]: Finished difference Result 1696 states and 1967 transitions. [2021-02-24 03:10:10,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:10:10,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 166 [2021-02-24 03:10:10,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:10,550 INFO L225 Difference]: With dead ends: 1696 [2021-02-24 03:10:10,550 INFO L226 Difference]: Without dead ends: 1184 [2021-02-24 03:10:10,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-02-24 03:10:10,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2021-02-24 03:10:11,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1056. [2021-02-24 03:10:11,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2021-02-24 03:10:11,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1175 transitions. [2021-02-24 03:10:11,027 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1175 transitions. Word has length 166 [2021-02-24 03:10:11,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:11,027 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1175 transitions. [2021-02-24 03:10:11,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:10:11,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1175 transitions. [2021-02-24 03:10:11,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-24 03:10:11,030 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:11,031 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 03:10:11,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:10:11,031 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:11,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:11,032 INFO L82 PathProgramCache]: Analyzing trace with hash -469947013, now seen corresponding path program 1 times [2021-02-24 03:10:11,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:11,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121595776] [2021-02-24 03:10:11,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:11,035 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:11,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:11,453 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:11,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:11,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:11,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:11,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:11,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:11,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:11,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:11,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:11,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:11,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:11,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:10:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:11,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:11,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 03:10:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:11,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 03:10:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:11,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:11,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 03:10:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:11,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:11,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:11,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:10:11,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121595776] [2021-02-24 03:10:11,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:11,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:10:11,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931863042] [2021-02-24 03:10:11,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:10:11,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:11,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:10:11,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:10:11,653 INFO L87 Difference]: Start difference. First operand 1056 states and 1175 transitions. Second operand 10 states. [2021-02-24 03:10:12,266 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:13,891 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:14,343 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:10:14,821 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:15,233 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:10:15,590 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:16,537 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:16,927 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:17,395 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:18,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:18,490 INFO L93 Difference]: Finished difference Result 1316 states and 1538 transitions. [2021-02-24 03:10:18,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-24 03:10:18,491 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2021-02-24 03:10:18,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:18,504 INFO L225 Difference]: With dead ends: 1316 [2021-02-24 03:10:18,504 INFO L226 Difference]: Without dead ends: 1313 [2021-02-24 03:10:18,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-02-24 03:10:18,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2021-02-24 03:10:18,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1056. [2021-02-24 03:10:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2021-02-24 03:10:18,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1172 transitions. [2021-02-24 03:10:18,963 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1172 transitions. Word has length 171 [2021-02-24 03:10:18,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:18,963 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1172 transitions. [2021-02-24 03:10:18,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:10:18,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1172 transitions. [2021-02-24 03:10:18,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-02-24 03:10:18,969 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:18,969 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:10:18,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:10:18,970 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:18,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1558116793, now seen corresponding path program 1 times [2021-02-24 03:10:18,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:18,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595332318] [2021-02-24 03:10:18,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:18,975 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,344 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:19,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:10:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:10:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:19,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:19,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:10:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:19,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:19,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:19,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:10:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:10:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:10:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-02-24 03:10:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-02-24 03:10:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:19,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:19,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:10:19,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595332318] [2021-02-24 03:10:19,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:19,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:10:19,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464811913] [2021-02-24 03:10:19,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:10:19,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:19,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:10:19,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:10:19,572 INFO L87 Difference]: Start difference. First operand 1056 states and 1172 transitions. Second operand 10 states. [2021-02-24 03:10:21,194 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:21,595 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:10:22,017 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:10:22,452 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:22,885 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:23,208 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:24,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:24,935 INFO L93 Difference]: Finished difference Result 2406 states and 2861 transitions. [2021-02-24 03:10:24,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:10:24,936 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 217 [2021-02-24 03:10:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:24,949 INFO L225 Difference]: With dead ends: 2406 [2021-02-24 03:10:24,949 INFO L226 Difference]: Without dead ends: 1465 [2021-02-24 03:10:24,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-02-24 03:10:24,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2021-02-24 03:10:25,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1088. [2021-02-24 03:10:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2021-02-24 03:10:25,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1204 transitions. [2021-02-24 03:10:25,538 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1204 transitions. Word has length 217 [2021-02-24 03:10:25,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:25,539 INFO L480 AbstractCegarLoop]: Abstraction has 1088 states and 1204 transitions. [2021-02-24 03:10:25,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:10:25,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1204 transitions. [2021-02-24 03:10:25,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-02-24 03:10:25,547 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:25,547 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:10:25,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:10:25,548 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:25,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:25,548 INFO L82 PathProgramCache]: Analyzing trace with hash -196553383, now seen corresponding path program 1 times [2021-02-24 03:10:25,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:25,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934441387] [2021-02-24 03:10:25,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:25,552 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:25,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:25,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:25,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:25,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:25,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:25,898 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:25,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:25,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:25,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:25,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:25,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:25,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:25,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:25,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:25,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:25,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:25,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:25,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:25,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:10:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:25,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:25,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:25,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:10:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:10:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:26,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:26,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:10:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:26,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:26,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:10:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:10:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-02-24 03:10:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-02-24 03:10:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:26,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:26,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:26,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:10:26,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934441387] [2021-02-24 03:10:26,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:26,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 03:10:26,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98447814] [2021-02-24 03:10:26,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 03:10:26,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:26,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 03:10:26,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-24 03:10:26,174 INFO L87 Difference]: Start difference. First operand 1088 states and 1204 transitions. Second operand 13 states. [2021-02-24 03:10:26,877 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:10:27,263 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:10:27,652 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:28,026 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:28,392 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:29,408 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:29,809 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:30,226 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:30,618 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:31,010 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:10:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:32,962 INFO L93 Difference]: Finished difference Result 2474 states and 2933 transitions. [2021-02-24 03:10:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 03:10:32,963 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 217 [2021-02-24 03:10:32,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:32,972 INFO L225 Difference]: With dead ends: 2474 [2021-02-24 03:10:32,973 INFO L226 Difference]: Without dead ends: 1501 [2021-02-24 03:10:32,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-02-24 03:10:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2021-02-24 03:10:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1112. [2021-02-24 03:10:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1112 states. [2021-02-24 03:10:33,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1228 transitions. [2021-02-24 03:10:33,480 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1228 transitions. Word has length 217 [2021-02-24 03:10:33,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:33,481 INFO L480 AbstractCegarLoop]: Abstraction has 1112 states and 1228 transitions. [2021-02-24 03:10:33,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 03:10:33,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1228 transitions. [2021-02-24 03:10:33,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-02-24 03:10:33,486 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:33,487 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:10:33,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 03:10:33,487 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:33,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:33,488 INFO L82 PathProgramCache]: Analyzing trace with hash 476168060, now seen corresponding path program 1 times [2021-02-24 03:10:33,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:33,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308874561] [2021-02-24 03:10:33,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:33,491 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:33,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:33,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:33,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:33,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:33,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:10:33,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:33,853 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:33,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:33,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:33,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:10:33,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:33,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:33,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:33,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:33,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:33,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:33,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:33,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:33,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:10:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:33,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:33,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:10:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:33,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:33,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:33,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:34,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:10:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:34,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:34,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:34,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:34,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:10:34,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:10:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:34,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:34,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:34,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:34,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:10:34,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:10:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:34,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:34,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:34,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:34,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:34,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:34,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:34,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:34,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:34,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:10:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:34,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:34,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:34,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-02-24 03:10:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:34,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:34,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:34,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-02-24 03:10:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:34,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:34,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:10:34,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308874561] [2021-02-24 03:10:34,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:34,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 03:10:34,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139571922] [2021-02-24 03:10:34,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 03:10:34,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:34,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 03:10:34,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-24 03:10:34,109 INFO L87 Difference]: Start difference. First operand 1112 states and 1228 transitions. Second operand 7 states. [2021-02-24 03:10:34,754 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:35,437 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:38,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:38,993 INFO L93 Difference]: Finished difference Result 3631 states and 4388 transitions. [2021-02-24 03:10:38,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:10:38,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2021-02-24 03:10:38,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:39,009 INFO L225 Difference]: With dead ends: 3631 [2021-02-24 03:10:39,009 INFO L226 Difference]: Without dead ends: 2634 [2021-02-24 03:10:39,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-02-24 03:10:39,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2021-02-24 03:10:40,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2156. [2021-02-24 03:10:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2156 states. [2021-02-24 03:10:40,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2444 transitions. [2021-02-24 03:10:40,085 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2444 transitions. Word has length 217 [2021-02-24 03:10:40,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:40,085 INFO L480 AbstractCegarLoop]: Abstraction has 2156 states and 2444 transitions. [2021-02-24 03:10:40,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 03:10:40,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2444 transitions. [2021-02-24 03:10:40,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-02-24 03:10:40,090 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:40,091 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:10:40,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 03:10:40,091 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:40,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:40,091 INFO L82 PathProgramCache]: Analyzing trace with hash -580766987, now seen corresponding path program 1 times [2021-02-24 03:10:40,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:40,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125843020] [2021-02-24 03:10:40,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:40,094 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:10:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:40,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:40,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:10:40,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,458 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:10:40,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:10:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:10:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:10:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:10:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:40,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:40,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:10:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 03:10:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-24 03:10:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:40,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-24 03:10:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:10:40,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:10:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:10:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:10:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,633 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-24 03:10:40,634 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-24 03:10:40,658 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-24 03:10:40,659 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-24 03:10:40,687 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-24 03:10:40,688 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-24 03:10:40,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:40,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:40,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:40,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:10:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:40,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:10:40,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:10:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-02-24 03:10:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-02-24 03:10:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:10:40,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:40,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:10:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:10:40,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125843020] [2021-02-24 03:10:40,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:10:40,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-24 03:10:40,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388948858] [2021-02-24 03:10:40,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-24 03:10:40,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:10:40,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-24 03:10:40,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2021-02-24 03:10:40,948 INFO L87 Difference]: Start difference. First operand 2156 states and 2444 transitions. Second operand 20 states. [2021-02-24 03:10:41,598 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:42,115 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:10:42,520 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:10:42,923 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:43,337 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:10:43,714 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:44,753 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:10:45,764 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:46,290 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:46,895 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:47,389 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:49,173 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:49,658 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:50,095 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:50,546 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:50,984 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:51,483 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:51,922 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:10:52,349 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:10:53,185 WARN L202 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2021-02-24 03:10:54,056 WARN L202 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2021-02-24 03:10:54,817 WARN L202 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2021-02-24 03:10:57,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:10:57,064 INFO L93 Difference]: Finished difference Result 4582 states and 5365 transitions. [2021-02-24 03:10:57,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-24 03:10:57,064 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 222 [2021-02-24 03:10:57,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:10:57,082 INFO L225 Difference]: With dead ends: 4582 [2021-02-24 03:10:57,082 INFO L226 Difference]: Without dead ends: 2541 [2021-02-24 03:10:57,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=563, Invalid=2407, Unknown=0, NotChecked=0, Total=2970 [2021-02-24 03:10:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2021-02-24 03:10:58,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 2070. [2021-02-24 03:10:58,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2070 states. [2021-02-24 03:10:58,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2070 states to 2070 states and 2312 transitions. [2021-02-24 03:10:58,317 INFO L78 Accepts]: Start accepts. Automaton has 2070 states and 2312 transitions. Word has length 222 [2021-02-24 03:10:58,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:10:58,318 INFO L480 AbstractCegarLoop]: Abstraction has 2070 states and 2312 transitions. [2021-02-24 03:10:58,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-24 03:10:58,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2070 states and 2312 transitions. [2021-02-24 03:10:58,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-02-24 03:10:58,325 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:10:58,325 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:10:58,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 03:10:58,326 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:10:58,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:10:58,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1117381015, now seen corresponding path program 1 times [2021-02-24 03:10:58,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:10:58,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302835321] [2021-02-24 03:10:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:10:58,411 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,431 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,441 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,445 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,501 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:58,514 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:58,518 WARN L141 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-02-24 03:10:58,521 WARN L147 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size 42 [2021-02-24 03:10:58,525 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,530 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,534 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,539 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,591 WARN L141 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size [2021-02-24 03:10:58,596 INFO L723 QuantifierPusher]: Distributing 11 disjuncts over 3 conjuncts [2021-02-24 03:10:58,602 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:58,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:10:58,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:58,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-24 03:10:58,621 WARN L147 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size 46 [2021-02-24 03:10:58,629 WARN L141 QuantifierPusher]: treesize reduction 17, result has 87.7 percent of original size [2021-02-24 03:10:58,636 WARN L147 QuantifierPusher]: treesize reduction 17, result has 87.7 percent of original size 121 [2021-02-24 03:10:58,640 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,645 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,648 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,655 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,707 WARN L141 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size [2021-02-24 03:10:58,709 INFO L723 QuantifierPusher]: Distributing 11 disjuncts over 3 conjuncts [2021-02-24 03:10:58,712 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:58,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:10:58,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:10:58,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-24 03:10:58,730 WARN L147 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size 46 [2021-02-24 03:10:58,740 WARN L141 QuantifierPusher]: treesize reduction 17, result has 87.7 percent of original size [2021-02-24 03:10:58,749 WARN L147 QuantifierPusher]: treesize reduction 17, result has 87.7 percent of original size 121 [2021-02-24 03:10:58,752 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,762 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,764 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,772 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,824 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:58,825 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:58,828 WARN L141 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-02-24 03:10:58,830 WARN L147 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size 42 [2021-02-24 03:10:58,832 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,835 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,838 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,842 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,894 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:58,895 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:58,898 WARN L141 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-02-24 03:10:58,899 WARN L147 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size 42 [2021-02-24 03:10:58,902 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,905 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,908 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,911 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,959 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:58,961 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:58,963 WARN L141 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-02-24 03:10:58,964 WARN L147 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size 42 [2021-02-24 03:10:58,966 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,969 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:58,972 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:58,974 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:59,023 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:59,024 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:59,026 WARN L141 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-02-24 03:10:59,028 WARN L147 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size 42 [2021-02-24 03:10:59,031 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:59,034 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:59,036 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size [2021-02-24 03:10:59,039 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-02-24 03:10:59,087 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:10:59,089 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:10:59,091 WARN L141 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-02-24 03:10:59,092 WARN L147 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size 42 [2021-02-24 03:10:59,093 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 03:10:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:10:59,200 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:10:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:10:59,326 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:10:59,564 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:10:59,564 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:10:59,567 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-24 03:10:59,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:10:59 BoogieIcfgContainer [2021-02-24 03:10:59,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:10:59,625 INFO L168 Benchmark]: Toolchain (without parser) took 76360.36 ms. Allocated memory was 155.2 MB in the beginning and 1.1 GB in the end (delta: 920.6 MB). Free memory was 130.8 MB in the beginning and 725.4 MB in the end (delta: -594.5 MB). Peak memory consumption was 327.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:10:59,625 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 155.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:10:59,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 577.72 ms. Allocated memory is still 155.2 MB. Free memory was 129.7 MB in the beginning and 108.7 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:10:59,625 INFO L168 Benchmark]: Boogie Preprocessor took 167.10 ms. Allocated memory is still 155.2 MB. Free memory was 108.7 MB in the beginning and 136.2 MB in the end (delta: -27.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:10:59,625 INFO L168 Benchmark]: RCFGBuilder took 1346.96 ms. Allocated memory is still 155.2 MB. Free memory was 136.2 MB in the beginning and 93.0 MB in the end (delta: 43.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:10:59,626 INFO L168 Benchmark]: TraceAbstraction took 74251.22 ms. Allocated memory was 155.2 MB in the beginning and 1.1 GB in the end (delta: 920.6 MB). Free memory was 92.5 MB in the beginning and 725.4 MB in the end (delta: -632.9 MB). Peak memory consumption was 288.3 MB. Max. memory is 8.0 GB. [2021-02-24 03:10:59,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 155.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 577.72 ms. Allocated memory is still 155.2 MB. Free memory was 129.7 MB in the beginning and 108.7 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 167.10 ms. Allocated memory is still 155.2 MB. Free memory was 108.7 MB in the beginning and 136.2 MB in the end (delta: -27.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1346.96 ms. Allocated memory is still 155.2 MB. Free memory was 136.2 MB in the beginning and 93.0 MB in the end (delta: 43.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 74251.22 ms. Allocated memory was 155.2 MB in the beginning and 1.1 GB in the end (delta: 920.6 MB). Free memory was 92.5 MB in the beginning and 725.4 MB in the end (delta: -632.9 MB). Peak memory consumption was 288.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 407]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L149] int pumpRunning = 0; [L150] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L514] int retValue_acc ; [L515] int tmp ; [L519] FCALL select_helpers() [L520] FCALL select_features() [L521] CALL, EXPR valid_product() [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); [L521] RET, EXPR valid_product() [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) [L525] FCALL setup() [L526] CALL runTest() [L505] CALL test() [L337] int splverifierCounter ; [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L341] int tmp___2 ; [L344] splverifierCounter = 0 [L346] COND TRUE 1 [L348] COND TRUE splverifierCounter < 4 [L354] tmp = __VERIFIER_nondet_int() [L356] COND TRUE \read(tmp) [L358] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L358] RET waterRise() [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND FALSE !(\read(tmp___0)) [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) [L391] CALL timeShift() [L157] COND FALSE !(\read(pumpRunning)) [L164] COND TRUE \read(systemActive) [L166] CALL processEnvironment() [L186] int tmp ; [L189] COND TRUE ! pumpRunning [L191] CALL, EXPR isHighWaterLevel() [L301] int retValue_acc ; [L302] int tmp ; [L303] int tmp___0 ; [L307] CALL, EXPR isHighWaterSensorDry() [L129] int retValue_acc ; [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); [L307] RET, EXPR isHighWaterSensorDry() [L307] tmp = isHighWaterSensorDry() [L309] COND FALSE !(\read(tmp)) [L312] tmp___0 = 1 [L314] retValue_acc = tmp___0 [L315] return (retValue_acc); [L191] RET, EXPR isHighWaterLevel() [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L195] CALL activatePump() [L220] int tmp ; [L224] CALL, EXPR isMethaneAlarm() [L245] int retValue_acc ; [L249] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L249] RET, EXPR isMethaneLevelCritical() [L249] retValue_acc = isMethaneLevelCritical() [L251] return (retValue_acc); [L224] RET, EXPR isMethaneAlarm() [L224] tmp = isMethaneAlarm() [L226] COND FALSE !(\read(tmp)) [L230] CALL activatePump__wrappee__highWaterSensor() [L214] pumpRunning = 1 [L230] RET activatePump__wrappee__highWaterSensor() [L195] RET activatePump() [L166] RET processEnvironment() [L172] CALL __utac_acc__Specification1_spec__1() [L413] int tmp ; [L414] int tmp___0 ; [L418] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L418] RET, EXPR isMethaneLevelCritical() [L418] tmp = isMethaneLevelCritical() [L420] COND FALSE !(\read(tmp)) [L172] RET __utac_acc__Specification1_spec__1() [L391] RET timeShift() [L346] COND TRUE 1 [L348] COND TRUE splverifierCounter < 4 [L354] tmp = __VERIFIER_nondet_int() [L356] COND FALSE !(\read(tmp)) [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___0) [L368] CALL changeMethaneLevel() [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 [L368] RET changeMethaneLevel() [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) [L391] CALL timeShift() [L157] COND TRUE \read(pumpRunning) [L159] CALL lowerWaterLevel() [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 [L159] RET lowerWaterLevel() [L164] COND TRUE \read(systemActive) [L166] CALL processEnvironment() [L186] int tmp ; [L189] COND FALSE !(! pumpRunning) [L204] FCALL processEnvironment__wrappee__base() [L166] RET processEnvironment() [L172] CALL __utac_acc__Specification1_spec__1() [L413] int tmp ; [L414] int tmp___0 ; [L418] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L418] RET, EXPR isMethaneLevelCritical() [L418] tmp = isMethaneLevelCritical() [L420] COND TRUE \read(tmp) [L422] CALL, EXPR isPumpRunning() [L256] int retValue_acc ; [L259] retValue_acc = pumpRunning [L260] return (retValue_acc); [L422] RET, EXPR isPumpRunning() [L422] tmp___0 = isPumpRunning() [L424] COND TRUE \read(tmp___0) [L426] CALL __automaton_fail() [L407] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 630 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 74.1s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 60.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2523 SDtfs, 5647 SDslu, 5668 SDs, 0 SdLazy, 11757 SolverSat, 1795 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 437 GetRequests, 265 SyntacticMatches, 4 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 30.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2156occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 2374 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...