/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_spec2_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:17:28,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:17:28,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:17:28,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:17:28,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:17:28,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:17:28,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:17:28,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:17:28,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:17:28,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:17:28,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:17:28,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:17:28,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:17:28,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:17:28,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:17:28,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:17:28,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:17:28,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:17:28,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:17:28,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:17:28,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:17:28,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:17:28,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:17:28,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:17:28,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:17:28,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:17:28,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:17:28,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:17:28,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:17:28,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:17:28,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:17:28,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:17:28,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:17:28,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:17:28,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:17:28,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:17:28,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:17:28,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:17:28,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:17:28,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:17:28,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:17:28,657 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 03:17:28,676 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:17:28,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:17:28,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:17:28,679 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:17:28,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:17:28,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:17:28,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:17:28,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:17:28,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:17:28,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:17:28,680 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:17:28,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:17:28,680 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:17:28,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:17:28,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:17:28,681 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:17:28,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:17:28,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:17:28,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:17:28,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:17:28,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:17:28,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:17:28,683 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:17:28,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:17:29,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:17:29,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:17:29,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:17:29,065 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:17:29,065 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:17:29,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2021-02-24 03:17:29,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d07e5158/456991ed5a7649a5ad6db21f69aa15aa/FLAG13bd5f119 [2021-02-24 03:17:29,869 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:17:29,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2021-02-24 03:17:29,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d07e5158/456991ed5a7649a5ad6db21f69aa15aa/FLAG13bd5f119 [2021-02-24 03:17:30,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d07e5158/456991ed5a7649a5ad6db21f69aa15aa [2021-02-24 03:17:30,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:17:30,158 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:17:30,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:17:30,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:17:30,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:17:30,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:17:30" (1/1) ... [2021-02-24 03:17:30,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7280357e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30, skipping insertion in model container [2021-02-24 03:17:30,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:17:30" (1/1) ... [2021-02-24 03:17:30,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:17:30,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:17:30,526 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_spec2_product42.cil.c[16731,16744] [2021-02-24 03:17:30,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:17:30,582 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:17:30,730 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_spec2_product42.cil.c[16731,16744] [2021-02-24 03:17:30,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:17:30,794 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:17:30,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30 WrapperNode [2021-02-24 03:17:30,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:17:30,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:17:30,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:17:30,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:17:30,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30" (1/1) ... [2021-02-24 03:17:30,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30" (1/1) ... [2021-02-24 03:17:30,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30" (1/1) ... [2021-02-24 03:17:30,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30" (1/1) ... [2021-02-24 03:17:30,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30" (1/1) ... [2021-02-24 03:17:30,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30" (1/1) ... [2021-02-24 03:17:30,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30" (1/1) ... [2021-02-24 03:17:30,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:17:30,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:17:30,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:17:30,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:17:30,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30" (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 03:17:31,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:17:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:17:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:17:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:17:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:17:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:17:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:17:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:17:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:17:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:17:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:17:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:17:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:17:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:17:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:17:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:17:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:17:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:17:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:17:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:17:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:17:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-24 03:17:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2021-02-24 03:17:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2021-02-24 03:17:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:17:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:17:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:17:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:17:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:17:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:17:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:17:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:17:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:17:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:17:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:17:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:17:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:17:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:17:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:17:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:17:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:17:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:17:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:17:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:17:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:17:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:17:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:17:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:17:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:17:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:17:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:17:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:17:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:17:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:17:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:17:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:17:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:17:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:17:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:17:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:17:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:17:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:17:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:17:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:17:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-24 03:17:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:17:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:17:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:17:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:17:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:17:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:17:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:17:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:17:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:17:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:17:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:17:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2021-02-24 03:17:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:17:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:17:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:17:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:17:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:17:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:17:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2021-02-24 03:17:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:17:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:17:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:17:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:17:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:17:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:17:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:17:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:17:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:17:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:17:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:17:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:17:32,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:17:32,409 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:17:32,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:17:32 BoogieIcfgContainer [2021-02-24 03:17:32,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:17:32,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:17:32,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:17:32,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:17:32,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:17:30" (1/3) ... [2021-02-24 03:17:32,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f791bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:17:32, skipping insertion in model container [2021-02-24 03:17:32,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:30" (2/3) ... [2021-02-24 03:17:32,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f791bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:17:32, skipping insertion in model container [2021-02-24 03:17:32,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:17:32" (3/3) ... [2021-02-24 03:17:32,420 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2021-02-24 03:17:32,427 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:17:32,432 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:17:32,452 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:17:32,479 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:17:32,479 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:17:32,479 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:17:32,479 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:17:32,480 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:17:32,480 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:17:32,480 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:17:32,480 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:17:32,503 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2021-02-24 03:17:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-02-24 03:17:32,525 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:32,526 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] [2021-02-24 03:17:32,527 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:32,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:32,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1719323154, now seen corresponding path program 1 times [2021-02-24 03:17:32,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:32,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228814225] [2021-02-24 03:17:32,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:32,612 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:33,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:33,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:33,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:33,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:33,374 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:33,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:33,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:33,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:33,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:33,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:33,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:33,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:33,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:33,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:33,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:33,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:33,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:33,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:33,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:33,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:33,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:33,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:33,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:33,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-24 03:17:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:33,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:33,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:33,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:17:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:33,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:33,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:33,649 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 03:17:33,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1228814225] [2021-02-24 03:17:33,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:33,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:17:33,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641773463] [2021-02-24 03:17:33,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:17:33,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:33,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:17:33,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:17:33,677 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 4 states. [2021-02-24 03:17:35,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:35,418 INFO L93 Difference]: Finished difference Result 484 states and 570 transitions. [2021-02-24 03:17:35,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 03:17:35,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2021-02-24 03:17:35,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:35,452 INFO L225 Difference]: With dead ends: 484 [2021-02-24 03:17:35,452 INFO L226 Difference]: Without dead ends: 311 [2021-02-24 03:17:35,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:17:35,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-02-24 03:17:35,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 262. [2021-02-24 03:17:35,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-02-24 03:17:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 283 transitions. [2021-02-24 03:17:35,642 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 283 transitions. Word has length 153 [2021-02-24 03:17:35,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:35,643 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 283 transitions. [2021-02-24 03:17:35,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:17:35,644 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 283 transitions. [2021-02-24 03:17:35,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-02-24 03:17:35,648 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:35,649 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] [2021-02-24 03:17:35,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:17:35,649 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:35,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:35,650 INFO L82 PathProgramCache]: Analyzing trace with hash -627120948, now seen corresponding path program 1 times [2021-02-24 03:17:35,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:35,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256474262] [2021-02-24 03:17:35,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:35,654 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:35,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:36,128 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:36,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:36,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:36,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:36,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:36,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:36,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:36,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:36,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:36,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:36,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:36,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:36,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:36,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:36,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:36,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:36,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:36,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:36,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:36,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 03:17:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:36,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:36,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:36,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-24 03:17:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:36,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:36,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:36,249 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 03:17:36,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256474262] [2021-02-24 03:17:36,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:36,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 03:17:36,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74770546] [2021-02-24 03:17:36,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 03:17:36,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:36,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 03:17:36,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:17:36,253 INFO L87 Difference]: Start difference. First operand 262 states and 283 transitions. Second operand 5 states. [2021-02-24 03:17:37,086 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:38,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:38,269 INFO L93 Difference]: Finished difference Result 408 states and 460 transitions. [2021-02-24 03:17:38,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 03:17:38,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2021-02-24 03:17:38,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:38,282 INFO L225 Difference]: With dead ends: 408 [2021-02-24 03:17:38,282 INFO L226 Difference]: Without dead ends: 300 [2021-02-24 03:17:38,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-24 03:17:38,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-02-24 03:17:38,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 252. [2021-02-24 03:17:38,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2021-02-24 03:17:38,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 270 transitions. [2021-02-24 03:17:38,435 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 270 transitions. Word has length 154 [2021-02-24 03:17:38,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:38,435 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 270 transitions. [2021-02-24 03:17:38,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 03:17:38,436 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 270 transitions. [2021-02-24 03:17:38,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-02-24 03:17:38,438 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:38,439 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] [2021-02-24 03:17:38,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:17:38,439 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:38,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:38,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1039758259, now seen corresponding path program 1 times [2021-02-24 03:17:38,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:38,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557047493] [2021-02-24 03:17:38,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:38,444 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:38,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:38,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:38,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:38,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:38,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:17:38,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:38,900 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:38,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:38,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:38,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:38,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:38,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:38,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:38,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:38,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:38,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:17:38,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:17:38,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:38,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-24 03:17:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:39,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-24 03:17:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 03:17:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,087 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 03:17:39,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557047493] [2021-02-24 03:17:39,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:39,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-24 03:17:39,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366761165] [2021-02-24 03:17:39,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 03:17:39,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:39,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 03:17:39,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:17:39,090 INFO L87 Difference]: Start difference. First operand 252 states and 270 transitions. Second operand 11 states. [2021-02-24 03:17:39,708 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:17:40,186 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:17:40,608 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:17:41,002 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:41,387 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:17:41,808 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:43,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:43,577 INFO L93 Difference]: Finished difference Result 455 states and 525 transitions. [2021-02-24 03:17:43,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 03:17:43,578 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2021-02-24 03:17:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:43,581 INFO L225 Difference]: With dead ends: 455 [2021-02-24 03:17:43,581 INFO L226 Difference]: Without dead ends: 323 [2021-02-24 03:17:43,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2021-02-24 03:17:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-02-24 03:17:43,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 252. [2021-02-24 03:17:43,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2021-02-24 03:17:43,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 269 transitions. [2021-02-24 03:17:43,705 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 269 transitions. Word has length 167 [2021-02-24 03:17:43,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:43,705 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 269 transitions. [2021-02-24 03:17:43,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 03:17:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 269 transitions. [2021-02-24 03:17:43,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-24 03:17:43,708 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:43,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:17:43,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:17:43,709 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:43,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:43,710 INFO L82 PathProgramCache]: Analyzing trace with hash -472616810, now seen corresponding path program 1 times [2021-02-24 03:17:43,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:43,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498817805] [2021-02-24 03:17:43,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:43,714 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:43,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:43,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:43,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:43,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:43,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:43,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:43,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:43,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:43,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:43,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:43,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:43,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,086 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:44,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:44,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-24 03:17:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-24 03:17:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:44,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:17:44,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:17:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-24 03:17:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-24 03:17:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:44,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:44,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:44,267 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 03:17:44,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498817805] [2021-02-24 03:17:44,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:44,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 03:17:44,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397968041] [2021-02-24 03:17:44,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 03:17:44,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:44,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 03:17:44,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-24 03:17:44,270 INFO L87 Difference]: Start difference. First operand 252 states and 269 transitions. Second operand 8 states. [2021-02-24 03:17:45,029 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:17:46,951 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:48,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:48,059 INFO L93 Difference]: Finished difference Result 634 states and 755 transitions. [2021-02-24 03:17:48,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-24 03:17:48,060 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2021-02-24 03:17:48,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:48,065 INFO L225 Difference]: With dead ends: 634 [2021-02-24 03:17:48,065 INFO L226 Difference]: Without dead ends: 502 [2021-02-24 03:17:48,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-02-24 03:17:48,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-02-24 03:17:48,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 361. [2021-02-24 03:17:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2021-02-24 03:17:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 390 transitions. [2021-02-24 03:17:48,256 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 390 transitions. Word has length 175 [2021-02-24 03:17:48,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:48,256 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 390 transitions. [2021-02-24 03:17:48,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 03:17:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 390 transitions. [2021-02-24 03:17:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-24 03:17:48,261 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:48,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:17:48,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:17:48,262 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:48,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:48,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1338672195, now seen corresponding path program 1 times [2021-02-24 03:17:48,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:48,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893399431] [2021-02-24 03:17:48,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:48,267 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:48,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:48,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,678 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:48,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:17:48,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:17:48,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-24 03:17:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-24 03:17:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:17:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:48,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:48,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:17:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:48,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:48,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:17:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-02-24 03:17:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-02-24 03:17:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:48,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:48,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:48,949 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 03:17:48,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893399431] [2021-02-24 03:17:48,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:48,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 03:17:48,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799527049] [2021-02-24 03:17:48,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 03:17:48,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:48,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 03:17:48,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-02-24 03:17:48,952 INFO L87 Difference]: Start difference. First operand 361 states and 390 transitions. Second operand 14 states. [2021-02-24 03:17:49,674 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:50,069 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:17:50,433 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:50,807 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:17:51,136 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:52,140 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:52,517 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:17:52,916 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:53,318 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:17:53,679 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:55,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:55,388 INFO L93 Difference]: Finished difference Result 748 states and 890 transitions. [2021-02-24 03:17:55,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-24 03:17:55,389 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 199 [2021-02-24 03:17:55,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:55,394 INFO L225 Difference]: With dead ends: 748 [2021-02-24 03:17:55,394 INFO L226 Difference]: Without dead ends: 507 [2021-02-24 03:17:55,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2021-02-24 03:17:55,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-02-24 03:17:55,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 367. [2021-02-24 03:17:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2021-02-24 03:17:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 396 transitions. [2021-02-24 03:17:55,543 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 396 transitions. Word has length 199 [2021-02-24 03:17:55,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:55,544 INFO L480 AbstractCegarLoop]: Abstraction has 367 states and 396 transitions. [2021-02-24 03:17:55,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 03:17:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 396 transitions. [2021-02-24 03:17:55,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-24 03:17:55,550 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:55,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:17:55,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:17:55,551 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:55,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:55,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1534054237, now seen corresponding path program 1 times [2021-02-24 03:17:55,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:55,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004871375] [2021-02-24 03:17:55,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:55,555 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:55,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:55,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:55,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:55,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:55,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:55,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:55,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:55,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:55,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:55,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:55,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:55,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:55,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:55,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:55,960 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:55,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:56,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-24 03:17:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-24 03:17:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:17:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:17:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:17:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-02-24 03:17:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:56,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:56,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-02-24 03:17:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:56,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:56,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:56,160 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 03:17:56,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004871375] [2021-02-24 03:17:56,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:56,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-24 03:17:56,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688868277] [2021-02-24 03:17:56,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 03:17:56,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:56,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 03:17:56,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:17:56,163 INFO L87 Difference]: Start difference. First operand 367 states and 396 transitions. Second operand 11 states. [2021-02-24 03:17:56,778 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:17:58,375 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:58,746 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:17:59,224 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:17:59,591 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:18:00,339 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:18:00,719 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:18:01,086 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:18:01,593 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:18:03,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:18:03,296 INFO L93 Difference]: Finished difference Result 1064 states and 1297 transitions. [2021-02-24 03:18:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-24 03:18:03,297 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2021-02-24 03:18:03,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:18:03,303 INFO L225 Difference]: With dead ends: 1064 [2021-02-24 03:18:03,303 INFO L226 Difference]: Without dead ends: 817 [2021-02-24 03:18:03,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2021-02-24 03:18:03,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2021-02-24 03:18:03,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 568. [2021-02-24 03:18:03,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2021-02-24 03:18:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 618 transitions. [2021-02-24 03:18:03,544 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 618 transitions. Word has length 199 [2021-02-24 03:18:03,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:18:03,545 INFO L480 AbstractCegarLoop]: Abstraction has 568 states and 618 transitions. [2021-02-24 03:18:03,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 03:18:03,545 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 618 transitions. [2021-02-24 03:18:03,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-02-24 03:18:03,549 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:18:03,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:18:03,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:18:03,550 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:18:03,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:18:03,550 INFO L82 PathProgramCache]: Analyzing trace with hash -343146437, now seen corresponding path program 1 times [2021-02-24 03:18:03,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:18:03,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240915003] [2021-02-24 03:18:03,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:18:03,553 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:18:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:03,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:03,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:03,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:03,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:03,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:03,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:03,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:03,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:03,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:03,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:03,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:03,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:03,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:03,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:03,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:03,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:03,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:03,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:03,944 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:18:03,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:18:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:04,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:18:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:18:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:18:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:18:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:18:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-24 03:18:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-24 03:18:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:18:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:04,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:18:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:18:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:18:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-02-24 03:18:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-02-24 03:18:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:04,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:04,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:04,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:04,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:04,228 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 03:18:04,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240915003] [2021-02-24 03:18:04,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:18:04,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 03:18:04,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716749606] [2021-02-24 03:18:04,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 03:18:04,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:18:04,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 03:18:04,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-02-24 03:18:04,231 INFO L87 Difference]: Start difference. First operand 568 states and 618 transitions. Second operand 12 states. [2021-02-24 03:18:04,914 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:18:06,829 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:18:07,189 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:18:07,705 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:18:09,295 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:18:09,618 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:18:10,070 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:18:10,447 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:18:10,824 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:18:11,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:18:11,708 INFO L93 Difference]: Finished difference Result 1395 states and 1682 transitions. [2021-02-24 03:18:11,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-24 03:18:11,708 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 204 [2021-02-24 03:18:11,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:18:11,715 INFO L225 Difference]: With dead ends: 1395 [2021-02-24 03:18:11,715 INFO L226 Difference]: Without dead ends: 947 [2021-02-24 03:18:11,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=444, Invalid=1278, Unknown=0, NotChecked=0, Total=1722 [2021-02-24 03:18:11,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2021-02-24 03:18:12,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 566. [2021-02-24 03:18:12,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2021-02-24 03:18:12,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 614 transitions. [2021-02-24 03:18:12,008 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 614 transitions. Word has length 204 [2021-02-24 03:18:12,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:18:12,009 INFO L480 AbstractCegarLoop]: Abstraction has 566 states and 614 transitions. [2021-02-24 03:18:12,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 03:18:12,009 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 614 transitions. [2021-02-24 03:18:12,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-02-24 03:18:12,013 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:18:12,013 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, 1, 1, 1, 1, 1] [2021-02-24 03:18:12,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:18:12,014 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:18:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:18:12,014 INFO L82 PathProgramCache]: Analyzing trace with hash -171483947, now seen corresponding path program 1 times [2021-02-24 03:18:12,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:18:12,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977383364] [2021-02-24 03:18:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:18:12,018 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:18:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,369 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:18:12,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:18:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:18:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:18:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:18:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:18:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:18:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-24 03:18:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-24 03:18:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:18:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:12,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:12,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:18:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:12,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:12,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:12,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:18:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:18:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:18:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-24 03:18:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-02-24 03:18:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:12,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:12,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:12,653 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 03:18:12,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977383364] [2021-02-24 03:18:12,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:18:12,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 03:18:12,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630575116] [2021-02-24 03:18:12,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 03:18:12,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:18:12,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 03:18:12,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-02-24 03:18:12,656 INFO L87 Difference]: Start difference. First operand 566 states and 614 transitions. Second operand 12 states. [2021-02-24 03:18:14,163 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:18:14,557 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:18:14,955 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:18:15,327 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:18:15,713 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:16,067 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:18:18,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:18:18,191 INFO L93 Difference]: Finished difference Result 1407 states and 1733 transitions. [2021-02-24 03:18:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-24 03:18:18,192 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2021-02-24 03:18:18,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:18:18,199 INFO L225 Difference]: With dead ends: 1407 [2021-02-24 03:18:18,200 INFO L226 Difference]: Without dead ends: 961 [2021-02-24 03:18:18,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2021-02-24 03:18:18,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2021-02-24 03:18:18,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 582. [2021-02-24 03:18:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2021-02-24 03:18:18,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 630 transitions. [2021-02-24 03:18:18,561 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 630 transitions. Word has length 227 [2021-02-24 03:18:18,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:18:18,562 INFO L480 AbstractCegarLoop]: Abstraction has 582 states and 630 transitions. [2021-02-24 03:18:18,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 03:18:18,563 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 630 transitions. [2021-02-24 03:18:18,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-02-24 03:18:18,567 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:18:18,567 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, 1, 1, 1, 1, 1] [2021-02-24 03:18:18,567 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 03:18:18,567 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:18:18,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:18:18,569 INFO L82 PathProgramCache]: Analyzing trace with hash 647843698, now seen corresponding path program 1 times [2021-02-24 03:18:18,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:18:18,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548852786] [2021-02-24 03:18:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:18:18,576 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:18:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:18,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:18,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:18,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:18,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:18,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:18,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:18,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:18,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:18,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:18,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:18:18,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:18,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:18,985 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:18:18,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:18:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:18:19,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:18:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:18:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:18:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:18:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:18:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-24 03:18:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-24 03:18:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:18:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:19,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:18:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:18:19,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:18:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:18:19,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:18:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:18:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-24 03:18:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-02-24 03:18:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:19,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:19,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:19,213 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 03:18:19,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548852786] [2021-02-24 03:18:19,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:18:19,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:18:19,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135720937] [2021-02-24 03:18:19,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:18:19,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:18:19,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:18:19,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:18:19,216 INFO L87 Difference]: Start difference. First operand 582 states and 630 transitions. Second operand 9 states. [2021-02-24 03:18:19,889 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:18:20,637 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:18:25,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:18:25,146 INFO L93 Difference]: Finished difference Result 2106 states and 2661 transitions. [2021-02-24 03:18:25,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-24 03:18:25,147 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 227 [2021-02-24 03:18:25,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:18:25,159 INFO L225 Difference]: With dead ends: 2106 [2021-02-24 03:18:25,159 INFO L226 Difference]: Without dead ends: 1644 [2021-02-24 03:18:25,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=295, Invalid=1111, Unknown=0, NotChecked=0, Total=1406 [2021-02-24 03:18:25,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2021-02-24 03:18:25,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1000. [2021-02-24 03:18:25,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1000 states. [2021-02-24 03:18:25,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1110 transitions. [2021-02-24 03:18:25,721 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1110 transitions. Word has length 227 [2021-02-24 03:18:25,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:18:25,722 INFO L480 AbstractCegarLoop]: Abstraction has 1000 states and 1110 transitions. [2021-02-24 03:18:25,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:18:25,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1110 transitions. [2021-02-24 03:18:25,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-02-24 03:18:25,724 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:18:25,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:18:25,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 03:18:25,725 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:18:25,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:18:25,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1988812449, now seen corresponding path program 1 times [2021-02-24 03:18:25,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:18:25,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706290976] [2021-02-24 03:18:25,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:18:25,729 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:18:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:25,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:25,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:25,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:25,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:25,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:25,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:25,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:25,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:25,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:25,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:18:25,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:25,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,126 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:18:26,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:18:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:18:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:18:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:18:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:26,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:26,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:18:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:18:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:18:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:18:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:26,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-24 03:18:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-02-24 03:18:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:26,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:18:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:18:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:18:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,326 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-24 03:18:26,327 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-24 03:18:26,355 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-24 03:18:26,357 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-24 03:18:26,389 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-24 03:18:26,396 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-24 03:18:26,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:26,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:26,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:26,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:26,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:26,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:18:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-02-24 03:18:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-02-24 03:18:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:26,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:26,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:26,646 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 03:18:26,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706290976] [2021-02-24 03:18:26,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:18:26,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-24 03:18:26,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461022753] [2021-02-24 03:18:26,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-24 03:18:26,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:18:26,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-24 03:18:26,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2021-02-24 03:18:26,648 INFO L87 Difference]: Start difference. First operand 1000 states and 1110 transitions. Second operand 22 states. [2021-02-24 03:18:27,404 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:18:27,934 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:18:28,340 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:18:28,737 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:29,131 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:18:29,490 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:30,674 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:18:32,371 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:32,806 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:33,299 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:33,748 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:34,140 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:34,577 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:34,962 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:35,390 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:35,846 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:36,360 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:36,800 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:37,303 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:38,179 WARN L202 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2021-02-24 03:18:39,077 WARN L202 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2021-02-24 03:18:39,939 WARN L202 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2021-02-24 03:18:44,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:18:44,287 INFO L93 Difference]: Finished difference Result 2469 states and 2984 transitions. [2021-02-24 03:18:44,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-02-24 03:18:44,288 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 232 [2021-02-24 03:18:44,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:18:44,298 INFO L225 Difference]: With dead ends: 2469 [2021-02-24 03:18:44,298 INFO L226 Difference]: Without dead ends: 1589 [2021-02-24 03:18:44,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1743 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=1130, Invalid=4876, Unknown=0, NotChecked=0, Total=6006 [2021-02-24 03:18:44,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2021-02-24 03:18:44,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 963. [2021-02-24 03:18:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2021-02-24 03:18:44,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1057 transitions. [2021-02-24 03:18:44,790 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1057 transitions. Word has length 232 [2021-02-24 03:18:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:18:44,791 INFO L480 AbstractCegarLoop]: Abstraction has 963 states and 1057 transitions. [2021-02-24 03:18:44,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-24 03:18:44,791 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1057 transitions. [2021-02-24 03:18:44,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-02-24 03:18:44,796 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:18:44,799 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, 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] [2021-02-24 03:18:44,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 03:18:44,799 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:18:44,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:18:44,800 INFO L82 PathProgramCache]: Analyzing trace with hash 69050348, now seen corresponding path program 1 times [2021-02-24 03:18:44,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:18:44,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501030450] [2021-02-24 03:18:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:18:44,931 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-24 03:18:44,932 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-24 03:18:44,946 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-24 03:18:44,947 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-24 03:18:44,956 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 03:18:44,984 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 03:18:44,993 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-24 03:18:45,000 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-24 03:18:45,009 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-24 03:18:45,009 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-24 03:18:45,015 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-24 03:18:45,016 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-24 03:18:45,018 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 03:18:45,021 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 03:18:45,024 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-24 03:18:45,030 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-24 03:18:45,034 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-24 03:18:45,042 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-24 03:18:45,046 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-24 03:18:45,055 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-24 03:18:45,105 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-24 03:18:45,112 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-24 03:18:45,121 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:45,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:18:45,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:45,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-24 03:18:45,150 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-24 03:18:45,161 WARN L141 QuantifierPusher]: treesize reduction 17, result has 87.3 percent of original size [2021-02-24 03:18:45,168 WARN L147 QuantifierPusher]: treesize reduction 17, result has 87.3 percent of original size 117 [2021-02-24 03:18:45,172 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-24 03:18:45,181 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-24 03:18:45,184 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-24 03:18:45,192 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-24 03:18:45,241 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:18:45,246 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:18:45,250 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-24 03:18:45,255 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-24 03:18:45,258 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-24 03:18:45,265 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-24 03:18:45,269 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-24 03:18:45,275 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-24 03:18:45,319 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:18:45,321 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:18:45,323 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-24 03:18:45,325 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-24 03:18:45,328 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-24 03:18:45,333 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-24 03:18:45,336 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-02-24 03:18:45,344 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size 73 [2021-02-24 03:18:45,389 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:18:45,393 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:18:45,397 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-24 03:18:45,399 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-24 03:18:45,401 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-24 03:18:45,401 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-24 03:18:45,404 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-24 03:18:45,404 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-24 03:18:45,406 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 03:18:45,411 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 03:18:45,413 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-24 03:18:45,415 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-24 03:18:45,417 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-24 03:18:45,417 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-24 03:18:45,419 WARN L141 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size [2021-02-24 03:18:45,420 WARN L147 QuantifierPusher]: treesize reduction 83, result has 1.2 percent of original size 1 [2021-02-24 03:18:45,422 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 03:18:45,423 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 03:18:45,427 WARN L141 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-02-24 03:18:45,430 WARN L147 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size 45 [2021-02-24 03:18:45,431 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 03:18:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:18:45,572 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:18:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:18:45,675 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:18:45,922 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:18:45,922 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:18:45,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 03:18:45,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:18:45 BoogieIcfgContainer [2021-02-24 03:18:45,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:18:45,978 INFO L168 Benchmark]: Toolchain (without parser) took 75832.42 ms. Allocated memory was 165.7 MB in the beginning and 700.4 MB in the end (delta: 534.8 MB). Free memory was 141.1 MB in the beginning and 532.6 MB in the end (delta: -391.5 MB). Peak memory consumption was 143.7 MB. Max. memory is 8.0 GB. [2021-02-24 03:18:45,978 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 165.7 MB. Free memory is still 138.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:18:45,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.20 ms. Allocated memory is still 165.7 MB. Free memory was 140.0 MB in the beginning and 118.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:18:45,979 INFO L168 Benchmark]: Boogie Preprocessor took 107.79 ms. Allocated memory is still 165.7 MB. Free memory was 118.9 MB in the beginning and 147.6 MB in the end (delta: -28.6 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:18:45,979 INFO L168 Benchmark]: RCFGBuilder took 1507.23 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 147.6 MB in the beginning and 130.6 MB in the end (delta: 17.0 MB). Peak memory consumption was 59.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:18:45,979 INFO L168 Benchmark]: TraceAbstraction took 73564.52 ms. Allocated memory was 199.2 MB in the beginning and 700.4 MB in the end (delta: 501.2 MB). Free memory was 130.1 MB in the beginning and 532.6 MB in the end (delta: -402.5 MB). Peak memory consumption was 98.7 MB. Max. memory is 8.0 GB. [2021-02-24 03:18:45,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 165.7 MB. Free memory is still 138.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 634.20 ms. Allocated memory is still 165.7 MB. Free memory was 140.0 MB in the beginning and 118.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 107.79 ms. Allocated memory is still 165.7 MB. Free memory was 118.9 MB in the beginning and 147.6 MB in the end (delta: -28.6 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1507.23 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 147.6 MB in the beginning and 130.6 MB in the end (delta: 17.0 MB). Peak memory consumption was 59.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 73564.52 ms. Allocated memory was 199.2 MB in the beginning and 700.4 MB in the end (delta: 501.2 MB). Free memory was 130.1 MB in the beginning and 532.6 MB in the end (delta: -402.5 MB). Peak memory consumption was 98.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 846]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L488] int pumpRunning = 0; [L489] int systemActive = 1; [L668] int methAndRunningLastTime ; [L745] int cleanupTimeShifts = 4; [L852] int waterLevel = 1; [L853] int methaneLevelCritical = 0; [L819] int retValue_acc ; [L820] int tmp ; [L824] FCALL select_helpers() [L825] FCALL select_features() [L826] CALL, EXPR valid_product() [L736] int retValue_acc ; [L739] retValue_acc = 1 [L740] return (retValue_acc); [L826] RET, EXPR valid_product() [L826] tmp = valid_product() [L828] COND TRUE \read(tmp) [L830] FCALL setup() [L831] CALL runTest() [L812] CALL __utac_acc__Specification2_spec__1() [L673] methAndRunningLastTime = 0 [L812] RET __utac_acc__Specification2_spec__1() [L813] CALL test() [L414] int splverifierCounter ; [L415] int tmp ; [L416] int tmp___0 ; [L417] int tmp___1 ; [L418] int tmp___2 ; [L421] splverifierCounter = 0 [L423] COND TRUE 1 [L425] COND TRUE splverifierCounter < 4 [L431] tmp = __VERIFIER_nondet_int() [L433] COND TRUE \read(tmp) [L435] CALL waterRise() [L870] COND TRUE waterLevel < 2 [L871] waterLevel = waterLevel + 1 [L435] RET waterRise() [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp___0)) [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L455] CALL startSystem() [L662] systemActive = 1 [L455] RET startSystem() [L468] CALL timeShift() [L496] COND FALSE !(\read(pumpRunning)) [L503] COND TRUE \read(systemActive) [L505] CALL processEnvironment() [L525] int tmp ; [L528] COND TRUE ! pumpRunning [L530] CALL, EXPR isHighWaterLevel() [L640] int retValue_acc ; [L641] int tmp ; [L642] int tmp___0 ; [L646] CALL, EXPR isHighWaterSensorDry() [L932] int retValue_acc ; [L935] COND FALSE !(waterLevel < 2) [L939] retValue_acc = 0 [L940] return (retValue_acc); [L646] RET, EXPR isHighWaterSensorDry() [L646] tmp = isHighWaterSensorDry() [L648] COND FALSE !(\read(tmp)) [L651] tmp___0 = 1 [L653] retValue_acc = tmp___0 [L654] return (retValue_acc); [L530] RET, EXPR isHighWaterLevel() [L530] tmp = isHighWaterLevel() [L532] COND TRUE \read(tmp) [L534] CALL activatePump() [L559] int tmp ; [L563] CALL, EXPR isMethaneAlarm() [L584] int retValue_acc ; [L588] CALL, EXPR isMethaneLevelCritical() [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); [L588] RET, EXPR isMethaneLevelCritical() [L588] retValue_acc = isMethaneLevelCritical() [L590] return (retValue_acc); [L563] RET, EXPR isMethaneAlarm() [L563] tmp = isMethaneAlarm() [L565] COND FALSE !(\read(tmp)) [L569] CALL activatePump__wrappee__highWaterSensor() [L553] pumpRunning = 1 [L569] RET activatePump__wrappee__highWaterSensor() [L534] RET activatePump() [L505] RET processEnvironment() [L511] CALL __utac_acc__Specification2_spec__2() [L678] int tmp ; [L679] int tmp___0 ; [L683] CALL, EXPR isMethaneLevelCritical() [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); [L683] RET, EXPR isMethaneLevelCritical() [L683] tmp = isMethaneLevelCritical() [L685] COND FALSE !(\read(tmp)) [L701] methAndRunningLastTime = 0 [L511] RET __utac_acc__Specification2_spec__2() [L468] RET timeShift() [L423] COND TRUE 1 [L425] COND TRUE splverifierCounter < 4 [L431] tmp = __VERIFIER_nondet_int() [L433] COND FALSE !(\read(tmp)) [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND TRUE \read(tmp___0) [L445] CALL changeMethaneLevel() [L882] COND FALSE !(\read(methaneLevelCritical)) [L885] methaneLevelCritical = 1 [L445] RET changeMethaneLevel() [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L455] CALL startSystem() [L662] systemActive = 1 [L455] RET startSystem() [L468] CALL timeShift() [L496] COND TRUE \read(pumpRunning) [L498] CALL lowerWaterLevel() [L858] COND TRUE waterLevel > 0 [L859] waterLevel = waterLevel - 1 [L498] RET lowerWaterLevel() [L503] COND TRUE \read(systemActive) [L505] CALL processEnvironment() [L525] int tmp ; [L528] COND FALSE !(! pumpRunning) [L543] FCALL processEnvironment__wrappee__base() [L505] RET processEnvironment() [L511] CALL __utac_acc__Specification2_spec__2() [L678] int tmp ; [L679] int tmp___0 ; [L683] CALL, EXPR isMethaneLevelCritical() [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); [L683] RET, EXPR isMethaneLevelCritical() [L683] tmp = isMethaneLevelCritical() [L685] COND TRUE \read(tmp) [L687] CALL, EXPR isPumpRunning() [L595] int retValue_acc ; [L598] retValue_acc = pumpRunning [L599] return (retValue_acc); [L687] RET, EXPR isPumpRunning() [L687] tmp___0 = isPumpRunning() [L689] COND TRUE \read(tmp___0) [L690] COND TRUE \read(methAndRunningLastTime) [L692] CALL __automaton_fail() [L846] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 637 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 73.4s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 62.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2647 SDtfs, 8518 SDslu, 7456 SDs, 0 SdLazy, 14337 SolverSat, 2619 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 609 GetRequests, 325 SyntacticMatches, 3 SemanticMatches, 281 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3101 ImplicationChecksByTransitivity, 31.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1000occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 2728 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...