/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/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:25:52,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:25:52,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:25:52,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 02:25:52,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 02:25:52,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 02:25:52,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 02:25:52,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 02:25:52,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 02:25:52,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 02:25:52,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 02:25:52,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 02:25:52,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:25:52,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:25:52,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:25:52,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:25:52,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:25:52,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:25:52,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:25:52,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:25:52,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:25:52,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:25:52,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:25:52,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:25:52,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:25:52,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:25:52,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:25:52,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:25:52,900 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:25:52,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:25:52,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:25:52,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:25:52,922 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:25:52,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:25:52,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:25:52,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:25:52,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:25:52,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:25:52,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:25:52,924 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:25:52,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:25:52,924 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:25:52,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:25:52,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:25:52,925 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:25:52,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:25:52,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:25:52,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:25:52,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:25:52,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:25:52,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:25:52,926 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:25:52,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:25:53,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:25:53,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:25:53,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:25:53,600 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:25:53,601 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:25:53,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2021-02-22 02:25:53,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9729a00db/17e970b5711d4d80ad2fce9d3d3c5e76/FLAGace6793d2 [2021-02-22 02:25:54,735 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:25:54,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2021-02-22 02:25:54,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9729a00db/17e970b5711d4d80ad2fce9d3d3c5e76/FLAGace6793d2 [2021-02-22 02:25:54,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9729a00db/17e970b5711d4d80ad2fce9d3d3c5e76 [2021-02-22 02:25:54,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:25:54,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:25:54,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:25:54,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:25:54,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:25:54,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:25:54" (1/1) ... [2021-02-22 02:25:54,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20617ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:54, skipping insertion in model container [2021-02-22 02:25:54,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:25:54" (1/1) ... [2021-02-22 02:25:54,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:25:55,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:25:55,471 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c[14700,14713] [2021-02-22 02:25:55,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:25:55,495 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:25:55,608 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c[14700,14713] [2021-02-22 02:25:55,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:25:55,654 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:25:55,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:55 WrapperNode [2021-02-22 02:25:55,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:25:55,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:25:55,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:25:55,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:25:55,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:55" (1/1) ... [2021-02-22 02:25:55,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:55" (1/1) ... [2021-02-22 02:25:55,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:55" (1/1) ... [2021-02-22 02:25:55,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:55" (1/1) ... [2021-02-22 02:25:55,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:55" (1/1) ... [2021-02-22 02:25:55,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:55" (1/1) ... [2021-02-22 02:25:55,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:55" (1/1) ... [2021-02-22 02:25:55,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:25:55,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:25:55,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:25:55,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:25:55,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:55" (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 [2021-02-22 02:25:56,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:25:56,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:25:56,043 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:25:56,045 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-22 02:25:56,045 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2021-02-22 02:25:56,046 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2021-02-22 02:25:56,046 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2021-02-22 02:25:56,046 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2021-02-22 02:25:56,047 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2021-02-22 02:25:56,049 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2021-02-22 02:25:56,050 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2021-02-22 02:25:56,050 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2021-02-22 02:25:56,050 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2021-02-22 02:25:56,051 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2021-02-22 02:25:56,052 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2021-02-22 02:25:56,052 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2021-02-22 02:25:56,053 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2021-02-22 02:25:56,054 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2021-02-22 02:25:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2021-02-22 02:25:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:25:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-02-22 02:25:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:25:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:25:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:25:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:25:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-02-22 02:25:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-02-22 02:25:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure read [2021-02-22 02:25:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write [2021-02-22 02:25:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-02-22 02:25:56,064 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-22 02:25:56,065 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2021-02-22 02:25:56,065 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2021-02-22 02:25:56,065 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2021-02-22 02:25:56,065 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2021-02-22 02:25:56,066 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2021-02-22 02:25:56,066 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2021-02-22 02:25:56,066 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2021-02-22 02:25:56,066 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2021-02-22 02:25:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure init [2021-02-22 02:25:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2021-02-22 02:25:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2021-02-22 02:25:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2021-02-22 02:25:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2021-02-22 02:25:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2021-02-22 02:25:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure check [2021-02-22 02:25:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:25:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:25:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:25:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:25:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:25:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:25:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:25:58,310 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:25:58,311 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:25:58,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:25:58 BoogieIcfgContainer [2021-02-22 02:25:58,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:25:58,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:25:58,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:25:58,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:25:58,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:25:54" (1/3) ... [2021-02-22 02:25:58,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c44058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:25:58, skipping insertion in model container [2021-02-22 02:25:58,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:55" (2/3) ... [2021-02-22 02:25:58,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c44058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:25:58, skipping insertion in model container [2021-02-22 02:25:58,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:25:58" (3/3) ... [2021-02-22 02:25:58,332 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2021-02-22 02:25:58,343 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:25:58,353 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:25:58,411 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:25:58,470 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:25:58,470 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:25:58,471 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:25:58,471 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:25:58,471 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:25:58,472 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:25:58,472 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:25:58,472 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:25:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states. [2021-02-22 02:25:58,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-02-22 02:25:58,546 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:58,548 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:25:58,549 INFO L428 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:58,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:58,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1866427219, now seen corresponding path program 1 times [2021-02-22 02:25:58,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:58,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446205739] [2021-02-22 02:25:58,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:58,699 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:59,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:59,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:59,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:59,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:59,613 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:25:59,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:59,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:59,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:25:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:59,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:59,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:25:59,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 02:25:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:59,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:59,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:25:59,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-22 02:25:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:59,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:59,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:25:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:59,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:59,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-22 02:25:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:59,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:59,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:59,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:59,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:25:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:00,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:00,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:00,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-02-22 02:26:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:00,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:00,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:00,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:00,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:00,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:00,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:00,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:00,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446205739] [2021-02-22 02:26:00,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:00,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 02:26:00,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184609653] [2021-02-22 02:26:00,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 02:26:00,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:00,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 02:26:00,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:26:00,262 INFO L87 Difference]: Start difference. First operand 582 states. Second operand 14 states. [2021-02-22 02:26:00,424 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-22 02:26:01,712 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:26:02,292 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:26:02,633 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:26:08,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:08,349 INFO L93 Difference]: Finished difference Result 1063 states and 1326 transitions. [2021-02-22 02:26:08,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-22 02:26:08,353 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 232 [2021-02-22 02:26:08,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:08,379 INFO L225 Difference]: With dead ends: 1063 [2021-02-22 02:26:08,379 INFO L226 Difference]: Without dead ends: 585 [2021-02-22 02:26:08,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-02-22 02:26:08,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2021-02-22 02:26:08,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 557. [2021-02-22 02:26:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2021-02-22 02:26:08,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 650 transitions. [2021-02-22 02:26:08,731 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 650 transitions. Word has length 232 [2021-02-22 02:26:08,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:08,734 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 650 transitions. [2021-02-22 02:26:08,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 02:26:08,734 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 650 transitions. [2021-02-22 02:26:08,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-22 02:26:08,742 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:08,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:08,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:26:08,743 INFO L428 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:08,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:08,744 INFO L82 PathProgramCache]: Analyzing trace with hash 76175079, now seen corresponding path program 1 times [2021-02-22 02:26:08,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:08,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497469558] [2021-02-22 02:26:08,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:08,751 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:09,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:09,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:09,070 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-22 02:26:09,076 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-22 02:26:09,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,367 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:09,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:09,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:09,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:09,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:26:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:09,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:09,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:26:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:09,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:09,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:09,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:09,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:09,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:09,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:09,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497469558] [2021-02-22 02:26:09,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:09,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 02:26:09,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298891175] [2021-02-22 02:26:09,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 02:26:09,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:09,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 02:26:09,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-02-22 02:26:09,838 INFO L87 Difference]: Start difference. First operand 557 states and 650 transitions. Second operand 11 states. [2021-02-22 02:26:12,315 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:26:12,603 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:26:14,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:14,777 INFO L93 Difference]: Finished difference Result 986 states and 1177 transitions. [2021-02-22 02:26:14,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-22 02:26:14,780 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 243 [2021-02-22 02:26:14,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:14,791 INFO L225 Difference]: With dead ends: 986 [2021-02-22 02:26:14,792 INFO L226 Difference]: Without dead ends: 562 [2021-02-22 02:26:14,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2021-02-22 02:26:14,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-02-22 02:26:15,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2021-02-22 02:26:15,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2021-02-22 02:26:15,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 654 transitions. [2021-02-22 02:26:15,007 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 654 transitions. Word has length 243 [2021-02-22 02:26:15,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:15,009 INFO L480 AbstractCegarLoop]: Abstraction has 562 states and 654 transitions. [2021-02-22 02:26:15,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 02:26:15,010 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 654 transitions. [2021-02-22 02:26:15,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-02-22 02:26:15,016 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:15,017 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:15,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:26:15,018 INFO L428 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:15,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:15,019 INFO L82 PathProgramCache]: Analyzing trace with hash 985442721, now seen corresponding path program 1 times [2021-02-22 02:26:15,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:15,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2043267346] [2021-02-22 02:26:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:15,025 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:26:15,169 WARN L141 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size [2021-02-22 02:26:15,170 WARN L147 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size 4 [2021-02-22 02:26:15,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,450 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:15,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:26:15,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:26:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:26:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:26:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:15,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:15,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:15,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:26:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-22 02:26:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-02-22 02:26:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-22 02:26:16,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2043267346] [2021-02-22 02:26:16,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:16,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 02:26:16,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317341528] [2021-02-22 02:26:16,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 02:26:16,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:16,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 02:26:16,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-22 02:26:16,178 INFO L87 Difference]: Start difference. First operand 562 states and 654 transitions. Second operand 16 states. [2021-02-22 02:26:16,462 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:26:17,297 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:26:17,446 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-02-22 02:26:20,241 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:26:20,388 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:26:20,543 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:26:20,753 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-22 02:26:20,943 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-22 02:26:21,095 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-22 02:26:21,486 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:26:24,486 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:26:25,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:25,310 INFO L93 Difference]: Finished difference Result 1191 states and 1400 transitions. [2021-02-22 02:26:25,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-22 02:26:25,311 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 316 [2021-02-22 02:26:25,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:25,321 INFO L225 Difference]: With dead ends: 1191 [2021-02-22 02:26:25,321 INFO L226 Difference]: Without dead ends: 762 [2021-02-22 02:26:25,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=578, Invalid=1774, Unknown=0, NotChecked=0, Total=2352 [2021-02-22 02:26:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-02-22 02:26:25,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 754. [2021-02-22 02:26:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2021-02-22 02:26:25,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 871 transitions. [2021-02-22 02:26:25,575 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 871 transitions. Word has length 316 [2021-02-22 02:26:25,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:25,577 INFO L480 AbstractCegarLoop]: Abstraction has 754 states and 871 transitions. [2021-02-22 02:26:25,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 02:26:25,577 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 871 transitions. [2021-02-22 02:26:25,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-02-22 02:26:25,582 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:25,583 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:25,583 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:26:25,584 INFO L428 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:25,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:25,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1167012846, now seen corresponding path program 1 times [2021-02-22 02:26:25,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:25,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053202732] [2021-02-22 02:26:25,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:25,590 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:25,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:25,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:26:25,746 WARN L141 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size [2021-02-22 02:26:25,747 WARN L147 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size 4 [2021-02-22 02:26:25,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:25,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,051 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:26,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:26:26,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:26:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:26:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:26:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:26,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:26,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:26,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:26:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-22 02:26:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-02-22 02:26:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:26,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:26,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:26,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053202732] [2021-02-22 02:26:26,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:26,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 02:26:26,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754981188] [2021-02-22 02:26:26,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 02:26:26,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:26,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 02:26:26,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-22 02:26:26,783 INFO L87 Difference]: Start difference. First operand 754 states and 871 transitions. Second operand 16 states. [2021-02-22 02:26:26,909 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:26:27,090 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:26:27,231 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-02-22 02:26:27,366 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-02-22 02:26:28,160 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:26:30,928 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:26:31,079 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:26:31,222 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:26:31,379 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:26:31,756 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-22 02:26:31,904 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-22 02:26:32,277 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:26:35,055 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:26:35,204 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:26:35,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:35,957 INFO L93 Difference]: Finished difference Result 1199 states and 1410 transitions. [2021-02-22 02:26:35,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-22 02:26:35,958 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 317 [2021-02-22 02:26:35,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:35,966 INFO L225 Difference]: With dead ends: 1199 [2021-02-22 02:26:35,966 INFO L226 Difference]: Without dead ends: 767 [2021-02-22 02:26:35,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=606, Invalid=2046, Unknown=0, NotChecked=0, Total=2652 [2021-02-22 02:26:35,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2021-02-22 02:26:36,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 754. [2021-02-22 02:26:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2021-02-22 02:26:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 871 transitions. [2021-02-22 02:26:36,172 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 871 transitions. Word has length 317 [2021-02-22 02:26:36,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:36,173 INFO L480 AbstractCegarLoop]: Abstraction has 754 states and 871 transitions. [2021-02-22 02:26:36,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 02:26:36,174 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 871 transitions. [2021-02-22 02:26:36,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-02-22 02:26:36,180 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:36,181 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:36,181 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:26:36,181 INFO L428 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:36,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:36,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1260005446, now seen corresponding path program 1 times [2021-02-22 02:26:36,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:36,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125094332] [2021-02-22 02:26:36,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:36,187 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:26:36,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,519 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:36,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:26:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:26:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:26:36,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:26:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:26:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:26:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:36,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-02-22 02:26:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:36,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:36,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:37,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:37,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125094332] [2021-02-22 02:26:37,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:37,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:26:37,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305488793] [2021-02-22 02:26:37,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:26:37,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:37,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:26:37,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:26:37,089 INFO L87 Difference]: Start difference. First operand 754 states and 871 transitions. Second operand 12 states. [2021-02-22 02:26:37,229 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:26:39,156 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:26:40,500 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:26:40,741 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-22 02:26:42,517 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-22 02:26:44,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:44,250 INFO L93 Difference]: Finished difference Result 1646 states and 1951 transitions. [2021-02-22 02:26:44,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-22 02:26:44,251 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 319 [2021-02-22 02:26:44,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:44,263 INFO L225 Difference]: With dead ends: 1646 [2021-02-22 02:26:44,264 INFO L226 Difference]: Without dead ends: 1214 [2021-02-22 02:26:44,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=347, Invalid=843, Unknown=0, NotChecked=0, Total=1190 [2021-02-22 02:26:44,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2021-02-22 02:26:44,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1172. [2021-02-22 02:26:44,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2021-02-22 02:26:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1380 transitions. [2021-02-22 02:26:44,650 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1380 transitions. Word has length 319 [2021-02-22 02:26:44,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:44,651 INFO L480 AbstractCegarLoop]: Abstraction has 1172 states and 1380 transitions. [2021-02-22 02:26:44,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:26:44,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1380 transitions. [2021-02-22 02:26:44,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-02-22 02:26:44,659 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:44,660 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:44,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 02:26:44,661 INFO L428 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:44,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:44,661 INFO L82 PathProgramCache]: Analyzing trace with hash 149582571, now seen corresponding path program 1 times [2021-02-22 02:26:44,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:44,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394014750] [2021-02-22 02:26:44,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:44,666 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:44,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:44,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:44,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:44,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:26:44,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:44,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,002 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:45,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:26:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:26:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:26:45,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:26:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:26:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:26:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:26:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:45,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:45,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:45,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:45,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394014750] [2021-02-22 02:26:45,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:45,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:26:45,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569831512] [2021-02-22 02:26:45,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:26:45,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:45,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:26:45,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:26:45,585 INFO L87 Difference]: Start difference. First operand 1172 states and 1380 transitions. Second operand 12 states. [2021-02-22 02:26:45,707 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:26:48,634 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:26:48,974 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:26:49,400 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:26:53,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:53,496 INFO L93 Difference]: Finished difference Result 2592 states and 3130 transitions. [2021-02-22 02:26:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-22 02:26:53,497 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 320 [2021-02-22 02:26:53,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:53,514 INFO L225 Difference]: With dead ends: 2592 [2021-02-22 02:26:53,515 INFO L226 Difference]: Without dead ends: 1832 [2021-02-22 02:26:53,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=348, Invalid=842, Unknown=0, NotChecked=0, Total=1190 [2021-02-22 02:26:53,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2021-02-22 02:26:54,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1812. [2021-02-22 02:26:54,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1812 states. [2021-02-22 02:26:54,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2173 transitions. [2021-02-22 02:26:54,149 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2173 transitions. Word has length 320 [2021-02-22 02:26:54,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:54,150 INFO L480 AbstractCegarLoop]: Abstraction has 1812 states and 2173 transitions. [2021-02-22 02:26:54,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:26:54,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2173 transitions. [2021-02-22 02:26:54,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-02-22 02:26:54,155 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:54,156 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:54,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:26:54,156 INFO L428 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:54,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:54,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1154331829, now seen corresponding path program 1 times [2021-02-22 02:26:54,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:54,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818500259] [2021-02-22 02:26:54,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:54,161 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:54,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:26:54,285 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-22 02:26:54,286 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-22 02:26:54,294 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-22 02:26:54,295 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-22 02:26:54,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,537 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:54,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:26:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:26:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:26:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:26:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:26:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:26:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:54,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:54,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:54,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:54,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818500259] [2021-02-22 02:26:54,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:54,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:26:54,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603964576] [2021-02-22 02:26:54,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:26:54,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:54,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:26:54,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:26:54,936 INFO L87 Difference]: Start difference. First operand 1812 states and 2173 transitions. Second operand 13 states. [2021-02-22 02:26:55,069 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:26:58,226 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:26:59,023 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:26:59,292 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:01,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:01,203 INFO L93 Difference]: Finished difference Result 3210 states and 3909 transitions. [2021-02-22 02:27:01,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:01,204 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 320 [2021-02-22 02:27:01,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:01,222 INFO L225 Difference]: With dead ends: 3210 [2021-02-22 02:27:01,223 INFO L226 Difference]: Without dead ends: 1836 [2021-02-22 02:27:01,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:27:01,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2021-02-22 02:27:01,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1836. [2021-02-22 02:27:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2021-02-22 02:27:01,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2193 transitions. [2021-02-22 02:27:01,875 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2193 transitions. Word has length 320 [2021-02-22 02:27:01,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:01,876 INFO L480 AbstractCegarLoop]: Abstraction has 1836 states and 2193 transitions. [2021-02-22 02:27:01,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:01,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2193 transitions. [2021-02-22 02:27:01,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-02-22 02:27:01,883 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:01,883 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:01,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 02:27:01,884 INFO L428 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:01,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1735295062, now seen corresponding path program 1 times [2021-02-22 02:27:01,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:01,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994329794] [2021-02-22 02:27:01,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:01,891 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:27:02,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,283 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:02,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:27:02,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-22 02:27:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-02-22 02:27:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-02-22 02:27:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:02,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:02,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:02,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994329794] [2021-02-22 02:27:02,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:02,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:27:02,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275853404] [2021-02-22 02:27:02,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:27:02,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:02,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:27:02,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:27:02,735 INFO L87 Difference]: Start difference. First operand 1836 states and 2193 transitions. Second operand 12 states. [2021-02-22 02:27:02,863 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:27:03,670 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:27:05,944 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:27:06,340 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:27:06,556 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-22 02:27:10,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:10,270 INFO L93 Difference]: Finished difference Result 3262 states and 3940 transitions. [2021-02-22 02:27:10,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-22 02:27:10,271 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 339 [2021-02-22 02:27:10,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:10,285 INFO L225 Difference]: With dead ends: 3262 [2021-02-22 02:27:10,285 INFO L226 Difference]: Without dead ends: 1864 [2021-02-22 02:27:10,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=352, Invalid=980, Unknown=0, NotChecked=0, Total=1332 [2021-02-22 02:27:10,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2021-02-22 02:27:10,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1844. [2021-02-22 02:27:10,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1844 states. [2021-02-22 02:27:10,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2198 transitions. [2021-02-22 02:27:10,922 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2198 transitions. Word has length 339 [2021-02-22 02:27:10,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:10,923 INFO L480 AbstractCegarLoop]: Abstraction has 1844 states and 2198 transitions. [2021-02-22 02:27:10,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:27:10,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2198 transitions. [2021-02-22 02:27:10,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-02-22 02:27:10,928 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:10,928 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:10,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 02:27:10,929 INFO L428 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:10,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:10,929 INFO L82 PathProgramCache]: Analyzing trace with hash -180945527, now seen corresponding path program 1 times [2021-02-22 02:27:10,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:10,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488660799] [2021-02-22 02:27:10,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:10,933 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:11,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:27:11,039 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-22 02:27:11,040 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-22 02:27:11,047 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-22 02:27:11,048 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-22 02:27:11,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,289 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:11,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:27:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:11,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488660799] [2021-02-22 02:27:11,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:11,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:11,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711084116] [2021-02-22 02:27:11,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:11,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:11,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:11,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:11,802 INFO L87 Difference]: Start difference. First operand 1844 states and 2198 transitions. Second operand 13 states. [2021-02-22 02:27:11,947 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:27:15,165 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:27:15,416 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-22 02:27:16,106 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:27:16,370 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:18,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:18,003 INFO L93 Difference]: Finished difference Result 3266 states and 3961 transitions. [2021-02-22 02:27:18,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:18,004 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 331 [2021-02-22 02:27:18,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:18,018 INFO L225 Difference]: With dead ends: 3266 [2021-02-22 02:27:18,018 INFO L226 Difference]: Without dead ends: 1868 [2021-02-22 02:27:18,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:27:18,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2021-02-22 02:27:18,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1868. [2021-02-22 02:27:18,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1868 states. [2021-02-22 02:27:18,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2218 transitions. [2021-02-22 02:27:18,554 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2218 transitions. Word has length 331 [2021-02-22 02:27:18,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:18,556 INFO L480 AbstractCegarLoop]: Abstraction has 1868 states and 2218 transitions. [2021-02-22 02:27:18,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:18,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2218 transitions. [2021-02-22 02:27:18,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-02-22 02:27:18,562 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:18,562 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:18,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 02:27:18,563 INFO L428 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:18,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:18,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1023019346, now seen corresponding path program 1 times [2021-02-22 02:27:18,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:18,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821242108] [2021-02-22 02:27:18,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:18,568 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:18,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:18,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:18,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:18,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:18,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:18,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:27:18,690 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-22 02:27:18,692 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-22 02:27:18,705 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-22 02:27:18,706 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-22 02:27:18,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:18,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,006 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:19,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:27:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-22 02:27:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:19,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:19,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:19,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821242108] [2021-02-22 02:27:19,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:19,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:19,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405679398] [2021-02-22 02:27:19,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:19,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:19,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:19,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:19,439 INFO L87 Difference]: Start difference. First operand 1868 states and 2218 transitions. Second operand 13 states. [2021-02-22 02:27:19,571 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:27:22,250 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:27:23,206 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:27:23,475 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:25,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:25,169 INFO L93 Difference]: Finished difference Result 3314 states and 4001 transitions. [2021-02-22 02:27:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:25,170 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 341 [2021-02-22 02:27:25,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:25,191 INFO L225 Difference]: With dead ends: 3314 [2021-02-22 02:27:25,191 INFO L226 Difference]: Without dead ends: 1892 [2021-02-22 02:27:25,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:27:25,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2021-02-22 02:27:25,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1892. [2021-02-22 02:27:25,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1892 states. [2021-02-22 02:27:25,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 2238 transitions. [2021-02-22 02:27:25,722 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 2238 transitions. Word has length 341 [2021-02-22 02:27:25,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:25,724 INFO L480 AbstractCegarLoop]: Abstraction has 1892 states and 2238 transitions. [2021-02-22 02:27:25,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:25,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 2238 transitions. [2021-02-22 02:27:25,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-02-22 02:27:25,730 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:25,730 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:25,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-22 02:27:25,731 INFO L428 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:25,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:25,732 INFO L82 PathProgramCache]: Analyzing trace with hash 553637762, now seen corresponding path program 1 times [2021-02-22 02:27:25,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:25,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100905575] [2021-02-22 02:27:25,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:25,736 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:25,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:25,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:25,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:25,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:27:25,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:25,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,150 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:26,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:27:26,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:27:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-22 02:27:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-02-22 02:27:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-02-22 02:27:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-02-22 02:27:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:26,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:26,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:26,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100905575] [2021-02-22 02:27:26,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:26,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:27:26,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117918306] [2021-02-22 02:27:26,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:27:26,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:26,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:27:26,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:27:26,622 INFO L87 Difference]: Start difference. First operand 1892 states and 2238 transitions. Second operand 12 states. [2021-02-22 02:27:26,752 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:27:27,551 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:27:30,280 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:27:30,720 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:27:30,976 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-22 02:27:32,590 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-22 02:27:34,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:34,101 INFO L93 Difference]: Finished difference Result 3420 states and 4080 transitions. [2021-02-22 02:27:34,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-22 02:27:34,108 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 349 [2021-02-22 02:27:34,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:34,121 INFO L225 Difference]: With dead ends: 3420 [2021-02-22 02:27:34,122 INFO L226 Difference]: Without dead ends: 1974 [2021-02-22 02:27:34,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=351, Invalid=981, Unknown=0, NotChecked=0, Total=1332 [2021-02-22 02:27:34,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2021-02-22 02:27:34,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1892. [2021-02-22 02:27:34,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1892 states. [2021-02-22 02:27:34,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 2234 transitions. [2021-02-22 02:27:34,968 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 2234 transitions. Word has length 349 [2021-02-22 02:27:34,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:34,970 INFO L480 AbstractCegarLoop]: Abstraction has 1892 states and 2234 transitions. [2021-02-22 02:27:34,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:27:34,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 2234 transitions. [2021-02-22 02:27:34,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-02-22 02:27:34,974 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:34,976 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:34,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-22 02:27:34,976 INFO L428 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:34,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:34,977 INFO L82 PathProgramCache]: Analyzing trace with hash -2104728561, now seen corresponding path program 1 times [2021-02-22 02:27:34,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:34,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781874766] [2021-02-22 02:27:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:34,985 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:35,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:35,125 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-22 02:27:35,127 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-22 02:27:35,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,371 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:35,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:27:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-22 02:27:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:35,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:35,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:35,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781874766] [2021-02-22 02:27:35,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:35,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:35,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678380113] [2021-02-22 02:27:35,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:35,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:35,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:35,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:35,817 INFO L87 Difference]: Start difference. First operand 1892 states and 2234 transitions. Second operand 13 states. [2021-02-22 02:27:35,982 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:27:38,574 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:27:39,533 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:27:39,848 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:41,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:41,481 INFO L93 Difference]: Finished difference Result 3358 states and 4015 transitions. [2021-02-22 02:27:41,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:41,482 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 341 [2021-02-22 02:27:41,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:41,493 INFO L225 Difference]: With dead ends: 3358 [2021-02-22 02:27:41,494 INFO L226 Difference]: Without dead ends: 1912 [2021-02-22 02:27:41,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:27:41,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2021-02-22 02:27:42,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1912. [2021-02-22 02:27:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2021-02-22 02:27:42,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2250 transitions. [2021-02-22 02:27:42,034 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2250 transitions. Word has length 341 [2021-02-22 02:27:42,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:42,035 INFO L480 AbstractCegarLoop]: Abstraction has 1912 states and 2250 transitions. [2021-02-22 02:27:42,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2250 transitions. [2021-02-22 02:27:42,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-02-22 02:27:42,040 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:42,041 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:42,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-22 02:27:42,041 INFO L428 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:42,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:42,042 INFO L82 PathProgramCache]: Analyzing trace with hash -483678640, now seen corresponding path program 1 times [2021-02-22 02:27:42,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:42,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654345303] [2021-02-22 02:27:42,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:42,045 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:42,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:27:42,153 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-22 02:27:42,155 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-22 02:27:42,165 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-22 02:27:42,167 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-22 02:27:42,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,436 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:42,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:27:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-22 02:27:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:42,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-02-22 02:27:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:42,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:42,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,031 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-22 02:27:43,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654345303] [2021-02-22 02:27:43,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:43,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:43,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135924359] [2021-02-22 02:27:43,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:43,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:43,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:43,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:43,034 INFO L87 Difference]: Start difference. First operand 1912 states and 2250 transitions. Second operand 13 states. [2021-02-22 02:27:43,174 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:27:45,784 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:27:47,401 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:27:47,663 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:48,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:48,694 INFO L93 Difference]: Finished difference Result 3406 states and 4059 transitions. [2021-02-22 02:27:48,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:48,694 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 351 [2021-02-22 02:27:48,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:48,707 INFO L225 Difference]: With dead ends: 3406 [2021-02-22 02:27:48,708 INFO L226 Difference]: Without dead ends: 1940 [2021-02-22 02:27:48,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:27:48,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2021-02-22 02:27:49,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1940. [2021-02-22 02:27:49,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1940 states. [2021-02-22 02:27:49,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2274 transitions. [2021-02-22 02:27:49,667 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2274 transitions. Word has length 351 [2021-02-22 02:27:49,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:49,668 INFO L480 AbstractCegarLoop]: Abstraction has 1940 states and 2274 transitions. [2021-02-22 02:27:49,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:49,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2274 transitions. [2021-02-22 02:27:49,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-02-22 02:27:49,674 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:49,675 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:49,675 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-22 02:27:49,675 INFO L428 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:49,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:49,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1024980272, now seen corresponding path program 1 times [2021-02-22 02:27:49,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:49,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552437900] [2021-02-22 02:27:49,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:49,683 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:49,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:49,818 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-22 02:27:49,823 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-22 02:27:49,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,072 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:50,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:27:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-22 02:27:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-02-22 02:27:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-02-22 02:27:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:50,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:50,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:50,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552437900] [2021-02-22 02:27:50,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:50,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:50,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131143418] [2021-02-22 02:27:50,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:50,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:50,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:50,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:50,558 INFO L87 Difference]: Start difference. First operand 1940 states and 2274 transitions. Second operand 13 states. [2021-02-22 02:27:50,685 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:27:53,392 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:27:54,538 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:27:54,806 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:56,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:56,311 INFO L93 Difference]: Finished difference Result 3454 states and 4095 transitions. [2021-02-22 02:27:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:56,312 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 360 [2021-02-22 02:27:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:56,323 INFO L225 Difference]: With dead ends: 3454 [2021-02-22 02:27:56,324 INFO L226 Difference]: Without dead ends: 1960 [2021-02-22 02:27:56,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:27:56,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2021-02-22 02:27:56,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1960. [2021-02-22 02:27:56,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2021-02-22 02:27:56,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2290 transitions. [2021-02-22 02:27:56,992 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2290 transitions. Word has length 360 [2021-02-22 02:27:56,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:56,993 INFO L480 AbstractCegarLoop]: Abstraction has 1960 states and 2290 transitions. [2021-02-22 02:27:56,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:56,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2290 transitions. [2021-02-22 02:27:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-02-22 02:27:56,999 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:56,999 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:57,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-22 02:27:57,000 INFO L428 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:57,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:57,001 INFO L82 PathProgramCache]: Analyzing trace with hash -158957949, now seen corresponding path program 1 times [2021-02-22 02:27:57,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:57,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276904350] [2021-02-22 02:27:57,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:57,004 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:27:57,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:27:57,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,378 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:57,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:27:57,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:57,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:57,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:57,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:57,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-22 02:27:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:57,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:27:57,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:27:57,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 02:27:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-22 02:27:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:57,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:27:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:57,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-22 02:27:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:57,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:57,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:58,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276904350] [2021-02-22 02:27:58,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:58,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:27:58,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24732738] [2021-02-22 02:27:58,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:27:58,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:58,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:27:58,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:27:58,119 INFO L87 Difference]: Start difference. First operand 1960 states and 2290 transitions. Second operand 19 states. [2021-02-22 02:27:58,262 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:27:59,211 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:27:59,955 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:00,401 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-22 02:28:00,974 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2021-02-22 02:28:01,116 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-02-22 02:28:01,757 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:03,384 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:28:03,672 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-22 02:28:04,643 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:04,995 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:05,311 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:28:05,620 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:09,004 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:28:09,298 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:28:09,599 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:09,879 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:28:10,223 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:28:10,531 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:11,151 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:28:13,081 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-22 02:28:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:28:16,073 INFO L93 Difference]: Finished difference Result 4884 states and 5719 transitions. [2021-02-22 02:28:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-02-22 02:28:16,074 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 362 [2021-02-22 02:28:16,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:28:16,097 INFO L225 Difference]: With dead ends: 4884 [2021-02-22 02:28:16,097 INFO L226 Difference]: Without dead ends: 3350 [2021-02-22 02:28:16,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1258 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=1009, Invalid=3821, Unknown=0, NotChecked=0, Total=4830 [2021-02-22 02:28:16,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2021-02-22 02:28:17,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 3122. [2021-02-22 02:28:17,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3122 states. [2021-02-22 02:28:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 3626 transitions. [2021-02-22 02:28:17,057 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 3626 transitions. Word has length 362 [2021-02-22 02:28:17,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:28:17,060 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 3626 transitions. [2021-02-22 02:28:17,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:28:17,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 3626 transitions. [2021-02-22 02:28:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-02-22 02:28:17,068 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:28:17,068 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:28:17,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-22 02:28:17,069 INFO L428 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:28:17,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:28:17,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1056560781, now seen corresponding path program 1 times [2021-02-22 02:28:17,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:28:17,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245273510] [2021-02-22 02:28:17,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:28:17,078 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:28:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:28:17,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:28:17,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:28:17,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:28:17,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,467 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:28:17,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:28:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:28:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:28:17,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:28:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:28:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:28:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:28:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:28:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:28:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:17,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:17,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:28:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:17,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:17,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:28:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:28:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-22 02:28:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-02-22 02:28:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-02-22 02:28:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:17,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:17,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:17,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-22 02:28:18,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245273510] [2021-02-22 02:28:18,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:28:18,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-02-22 02:28:18,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628774549] [2021-02-22 02:28:18,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-22 02:28:18,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:28:18,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-22 02:28:18,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-02-22 02:28:18,125 INFO L87 Difference]: Start difference. First operand 3122 states and 3626 transitions. Second operand 18 states. [2021-02-22 02:28:18,266 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:28:19,647 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:19,952 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:20,368 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-22 02:28:21,809 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-02-22 02:28:22,927 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:28:23,345 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2021-02-22 02:28:23,473 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-22 02:28:23,906 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:26,880 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:28:27,106 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-22 02:28:28,311 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:28:28,832 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:28:31,389 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:28:31,909 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:32,207 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:28:32,506 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:28:32,790 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:28:33,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:28:33,746 INFO L93 Difference]: Finished difference Result 6132 states and 7132 transitions. [2021-02-22 02:28:33,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-02-22 02:28:33,746 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 363 [2021-02-22 02:28:33,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:28:33,765 INFO L225 Difference]: With dead ends: 6132 [2021-02-22 02:28:33,765 INFO L226 Difference]: Without dead ends: 3946 [2021-02-22 02:28:33,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=904, Invalid=2756, Unknown=0, NotChecked=0, Total=3660 [2021-02-22 02:28:33,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2021-02-22 02:28:35,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3342. [2021-02-22 02:28:35,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3342 states. [2021-02-22 02:28:35,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 3862 transitions. [2021-02-22 02:28:35,278 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 3862 transitions. Word has length 363 [2021-02-22 02:28:35,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:28:35,278 INFO L480 AbstractCegarLoop]: Abstraction has 3342 states and 3862 transitions. [2021-02-22 02:28:35,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-02-22 02:28:35,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 3862 transitions. [2021-02-22 02:28:35,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2021-02-22 02:28:35,284 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:28:35,285 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:28:35,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-22 02:28:35,285 INFO L428 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:28:35,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:28:35,286 INFO L82 PathProgramCache]: Analyzing trace with hash 375308354, now seen corresponding path program 1 times [2021-02-22 02:28:35,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:28:35,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843714719] [2021-02-22 02:28:35,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:28:35,291 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:28:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:35,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:35,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:35,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:35,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:35,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:28:35,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:28:35,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:35,439 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-22 02:28:35,440 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-22 02:28:35,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:35,741 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:28:35,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:28:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:35,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:35,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:28:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:35,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:35,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:35,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:28:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:35,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:35,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:28:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:35,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:35,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:28:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:35,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:35,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:28:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:35,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:35,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:35,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:35,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:28:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:28:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:28:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-22 02:28:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:36,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 02:28:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-22 02:28:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:28:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-22 02:28:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:36,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:36,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-22 02:28:36,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843714719] [2021-02-22 02:28:36,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:28:36,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:28:36,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689462499] [2021-02-22 02:28:36,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:28:36,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:28:36,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:28:36,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:28:36,420 INFO L87 Difference]: Start difference. First operand 3342 states and 3862 transitions. Second operand 19 states. [2021-02-22 02:28:36,562 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:28:37,914 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:41,288 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:28:44,058 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:28:44,734 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:45,101 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:28:46,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:28:46,498 INFO L93 Difference]: Finished difference Result 3570 states and 4133 transitions. [2021-02-22 02:28:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-02-22 02:28:46,499 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 364 [2021-02-22 02:28:46,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:28:46,517 INFO L225 Difference]: With dead ends: 3570 [2021-02-22 02:28:46,517 INFO L226 Difference]: Without dead ends: 3568 [2021-02-22 02:28:46,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2021-02-22 02:28:46,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2021-02-22 02:28:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3370. [2021-02-22 02:28:47,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3370 states. [2021-02-22 02:28:47,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 3890 transitions. [2021-02-22 02:28:47,578 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 3890 transitions. Word has length 364 [2021-02-22 02:28:47,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:28:47,579 INFO L480 AbstractCegarLoop]: Abstraction has 3370 states and 3890 transitions. [2021-02-22 02:28:47,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:28:47,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 3890 transitions. [2021-02-22 02:28:47,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-02-22 02:28:47,585 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:28:47,586 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:28:47,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-22 02:28:47,586 INFO L428 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:28:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:28:47,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1636021951, now seen corresponding path program 1 times [2021-02-22 02:28:47,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:28:47,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882397005] [2021-02-22 02:28:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:28:47,590 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:28:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:47,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:47,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:47,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:47,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:28:47,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:47,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:47,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:47,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:47,956 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:28:47,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:28:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:47,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:47,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:47,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:28:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:47,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:47,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:47,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:47,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:47,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:28:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:47,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:47,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:28:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:28:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:28:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:28:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:48,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:48,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:48,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:48,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:28:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:28:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-22 02:28:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:48,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:48,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:28:48,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 02:28:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-22 02:28:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:28:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-22 02:28:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:48,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-22 02:28:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:48,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:48,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:48,798 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-22 02:28:48,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882397005] [2021-02-22 02:28:48,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:28:48,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:28:48,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332559243] [2021-02-22 02:28:48,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:28:48,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:28:48,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:28:48,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:28:48,802 INFO L87 Difference]: Start difference. First operand 3370 states and 3890 transitions. Second operand 19 states. [2021-02-22 02:28:48,955 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:28:49,980 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:28:50,847 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:51,322 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-22 02:28:53,264 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2021-02-22 02:28:53,995 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:54,600 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:28:56,157 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:56,864 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-22 02:28:58,748 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:28:59,843 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:29:00,473 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:29:00,775 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:29:01,102 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:29:01,490 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:29:01,789 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:29:02,136 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:29:04,488 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-22 02:29:06,624 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:29:10,398 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:29:10,711 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:29:11,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:29:11,072 INFO L93 Difference]: Finished difference Result 8108 states and 9433 transitions. [2021-02-22 02:29:11,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-22 02:29:11,073 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 372 [2021-02-22 02:29:11,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:29:11,110 INFO L225 Difference]: With dead ends: 8108 [2021-02-22 02:29:11,110 INFO L226 Difference]: Without dead ends: 5746 [2021-02-22 02:29:11,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1422 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=1097, Invalid=4305, Unknown=0, NotChecked=0, Total=5402 [2021-02-22 02:29:11,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5746 states. [2021-02-22 02:29:12,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5746 to 3949. [2021-02-22 02:29:12,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3949 states. [2021-02-22 02:29:12,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 4586 transitions. [2021-02-22 02:29:12,473 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 4586 transitions. Word has length 372 [2021-02-22 02:29:12,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:29:12,474 INFO L480 AbstractCegarLoop]: Abstraction has 3949 states and 4586 transitions. [2021-02-22 02:29:12,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:29:12,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 4586 transitions. [2021-02-22 02:29:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-02-22 02:29:12,480 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:29:12,480 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:29:12,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-22 02:29:12,481 INFO L428 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:29:12,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:29:12,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1057181460, now seen corresponding path program 1 times [2021-02-22 02:29:12,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:29:12,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365041421] [2021-02-22 02:29:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:29:12,485 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:29:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:12,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:12,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:12,581 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-02-22 02:29:12,585 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size 20 [2021-02-22 02:29:12,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:12,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:12,842 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:29:12,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:29:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:12,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:12,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:12,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:29:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:12,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:12,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:12,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:29:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:12,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:12,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:12,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:29:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:12,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:12,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:12,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:29:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:12,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:12,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:12,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:29:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:12,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:12,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:12,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:12,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:12,992 WARN L141 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-02-22 02:29:12,993 WARN L147 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size 12 [2021-02-22 02:29:13,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:13,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:13,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:29:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:29:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:29:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:29:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-22 02:29:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,231 WARN L141 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-02-22 02:29:13,232 WARN L147 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size 17 [2021-02-22 02:29:13,275 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-02-22 02:29:13,277 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size 20 [2021-02-22 02:29:13,327 WARN L141 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-02-22 02:29:13,329 WARN L147 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size 40 [2021-02-22 02:29:13,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:29:13,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:29:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 02:29:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-22 02:29:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:29:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:13,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-22 02:29:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-02-22 02:29:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:13,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:13,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:13,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:29:13,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365041421] [2021-02-22 02:29:13,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:29:13,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-22 02:29:13,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169341031] [2021-02-22 02:29:13,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-22 02:29:13,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:29:13,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-22 02:29:13,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-02-22 02:29:13,835 INFO L87 Difference]: Start difference. First operand 3949 states and 4586 transitions. Second operand 20 states. [2021-02-22 02:29:13,976 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:29:15,994 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:29:17,199 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-22 02:29:17,703 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:29:20,168 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:29:20,546 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-22 02:29:20,719 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-22 02:29:22,506 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:29:22,923 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:29:23,559 WARN L202 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2021-02-22 02:29:24,199 WARN L202 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2021-02-22 02:29:24,554 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:29:25,462 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-02-22 02:29:28,724 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-22 02:29:32,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:29:32,375 INFO L93 Difference]: Finished difference Result 7552 states and 8906 transitions. [2021-02-22 02:29:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-22 02:29:32,382 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 372 [2021-02-22 02:29:32,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:29:32,420 INFO L225 Difference]: With dead ends: 7552 [2021-02-22 02:29:32,420 INFO L226 Difference]: Without dead ends: 4398 [2021-02-22 02:29:32,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=663, Invalid=2093, Unknown=0, NotChecked=0, Total=2756 [2021-02-22 02:29:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4398 states. [2021-02-22 02:29:33,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4398 to 3841. [2021-02-22 02:29:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3841 states. [2021-02-22 02:29:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 4440 transitions. [2021-02-22 02:29:33,827 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 4440 transitions. Word has length 372 [2021-02-22 02:29:33,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:29:33,828 INFO L480 AbstractCegarLoop]: Abstraction has 3841 states and 4440 transitions. [2021-02-22 02:29:33,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-22 02:29:33,829 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 4440 transitions. [2021-02-22 02:29:33,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-02-22 02:29:33,834 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:29:33,834 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:29:33,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-22 02:29:33,834 INFO L428 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:29:33,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:29:33,835 INFO L82 PathProgramCache]: Analyzing trace with hash 880146998, now seen corresponding path program 1 times [2021-02-22 02:29:33,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:29:33,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308785302] [2021-02-22 02:29:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:29:33,840 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:29:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:33,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:33,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:33,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:33,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:33,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:33,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,177 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:29:34,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:29:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:29:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:29:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:29:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:29:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:29:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:29:34,330 WARN L141 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-02-22 02:29:34,332 WARN L147 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size 7 [2021-02-22 02:29:34,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:29:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-22 02:29:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:29:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:29:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-02-22 02:29:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-22 02:29:34,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:29:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:29:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:29:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:29:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:29:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:29:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:29:34,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308785302] [2021-02-22 02:29:34,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:29:34,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 02:29:34,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052589534] [2021-02-22 02:29:34,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 02:29:34,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:29:34,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 02:29:34,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:29:34,778 INFO L87 Difference]: Start difference. First operand 3841 states and 4440 transitions. Second operand 14 states. [2021-02-22 02:29:34,917 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:29:35,842 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:29:38,268 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:29:39,888 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:29:40,207 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-22 02:29:42,797 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-22 02:29:50,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:29:50,696 INFO L93 Difference]: Finished difference Result 10378 states and 12179 transitions. [2021-02-22 02:29:50,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-22 02:29:50,697 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 379 [2021-02-22 02:29:50,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:29:50,735 INFO L225 Difference]: With dead ends: 10378 [2021-02-22 02:29:50,735 INFO L226 Difference]: Without dead ends: 7361 [2021-02-22 02:29:50,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=503, Invalid=1753, Unknown=0, NotChecked=0, Total=2256 [2021-02-22 02:29:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2021-02-22 02:29:53,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 6491. [2021-02-22 02:29:53,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6491 states. [2021-02-22 02:29:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6491 states to 6491 states and 7575 transitions. [2021-02-22 02:29:53,356 INFO L78 Accepts]: Start accepts. Automaton has 6491 states and 7575 transitions. Word has length 379 [2021-02-22 02:29:53,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:29:53,357 INFO L480 AbstractCegarLoop]: Abstraction has 6491 states and 7575 transitions. [2021-02-22 02:29:53,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 02:29:53,357 INFO L276 IsEmpty]: Start isEmpty. Operand 6491 states and 7575 transitions. [2021-02-22 02:29:53,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-02-22 02:29:53,363 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:29:53,363 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:29:53,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-22 02:29:53,364 INFO L428 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:29:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:29:53,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1287855307, now seen corresponding path program 1 times [2021-02-22 02:29:53,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:29:53,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679598794] [2021-02-22 02:29:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:29:53,369 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:29:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:53,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:53,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:53,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:53,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:29:53,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:53,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:53,795 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:29:53,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:29:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:53,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:53,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:53,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:29:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:53,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:53,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:53,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:29:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:53,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:53,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:53,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:29:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:53,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:53,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:53,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:29:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:53,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:53,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:53,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:29:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:53,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:53,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:53,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:53,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:53,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:29:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:29:54,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:29:54,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:54,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:54,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-22 02:29:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:29:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:29:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-02-22 02:29:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:54,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:29:54,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:29:54,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:29:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:29:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:29:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:29:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:29:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:29:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:54,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:54,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:54,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:29:54,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679598794] [2021-02-22 02:29:54,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:29:54,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:29:54,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238605206] [2021-02-22 02:29:54,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:29:54,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:29:54,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:29:54,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:29:54,717 INFO L87 Difference]: Start difference. First operand 6491 states and 7575 transitions. Second operand 19 states. [2021-02-22 02:29:54,873 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:29:55,805 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:29:58,575 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:29:59,916 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:30:00,571 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-22 02:30:01,383 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-22 02:30:01,892 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:30:02,102 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:30:02,601 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-22 02:30:05,118 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-22 02:30:05,523 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-22 02:30:05,864 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-02-22 02:30:06,198 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-22 02:30:06,664 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:30:07,013 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:30:07,337 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-22 02:30:07,667 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:30:08,247 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-22 02:30:13,200 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:30:17,983 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:30:18,323 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-22 02:30:21,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:30:21,382 INFO L93 Difference]: Finished difference Result 12804 states and 15141 transitions. [2021-02-22 02:30:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-22 02:30:21,383 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 381 [2021-02-22 02:30:21,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:30:21,423 INFO L225 Difference]: With dead ends: 12804 [2021-02-22 02:30:21,424 INFO L226 Difference]: Without dead ends: 7354 [2021-02-22 02:30:21,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=926, Invalid=3496, Unknown=0, NotChecked=0, Total=4422 [2021-02-22 02:30:21,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7354 states. [2021-02-22 02:30:24,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7354 to 6411. [2021-02-22 02:30:24,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6411 states. [2021-02-22 02:30:24,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6411 states to 6411 states and 7469 transitions. [2021-02-22 02:30:24,379 INFO L78 Accepts]: Start accepts. Automaton has 6411 states and 7469 transitions. Word has length 381 [2021-02-22 02:30:24,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:30:24,380 INFO L480 AbstractCegarLoop]: Abstraction has 6411 states and 7469 transitions. [2021-02-22 02:30:24,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:30:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 6411 states and 7469 transitions. [2021-02-22 02:30:24,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-02-22 02:30:24,386 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:30:24,386 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:30:24,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-22 02:30:24,387 INFO L428 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:30:24,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:30:24,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1690610776, now seen corresponding path program 1 times [2021-02-22 02:30:24,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:30:24,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259106816] [2021-02-22 02:30:24,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:30:24,392 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:30:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:24,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:24,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:24,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:24,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:30:24,514 WARN L141 QuantifierPusher]: treesize reduction 30, result has 23.1 percent of original size [2021-02-22 02:30:24,515 WARN L147 QuantifierPusher]: treesize reduction 30, result has 23.1 percent of original size 9 [2021-02-22 02:30:24,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:24,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:24,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:24,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:24,828 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:30:24,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:30:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:24,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:24,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:24,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:30:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:24,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:24,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:24,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:30:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:24,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:24,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:24,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:30:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:24,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:24,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:24,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:24,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:24,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:30:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:24,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:24,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:30:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:25,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:30:25,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:30:25,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:30:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-22 02:30:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:30:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:30:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-02-22 02:30:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:30:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:30:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:30:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:30:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:30:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:30:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:25,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:25,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:25,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:30:25,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259106816] [2021-02-22 02:30:25,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:30:25,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:30:25,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467900892] [2021-02-22 02:30:25,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:30:25,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:30:25,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:30:25,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:30:25,626 INFO L87 Difference]: Start difference. First operand 6411 states and 7469 transitions. Second operand 19 states. [2021-02-22 02:30:25,797 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:30:27,957 WARN L202 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2021-02-22 02:30:28,304 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2021-02-22 02:30:28,518 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-22 02:30:28,920 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-22 02:30:31,839 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:30:37,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:30:37,460 INFO L93 Difference]: Finished difference Result 12243 states and 14330 transitions. [2021-02-22 02:30:37,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-02-22 02:30:37,462 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 389 [2021-02-22 02:30:37,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:30:37,494 INFO L225 Difference]: With dead ends: 12243 [2021-02-22 02:30:37,494 INFO L226 Difference]: Without dead ends: 6451 [2021-02-22 02:30:37,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=485, Invalid=1585, Unknown=0, NotChecked=0, Total=2070 [2021-02-22 02:30:37,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6451 states. [2021-02-22 02:30:40,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6451 to 6119. [2021-02-22 02:30:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6119 states. [2021-02-22 02:30:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6119 states to 6119 states and 7132 transitions. [2021-02-22 02:30:40,802 INFO L78 Accepts]: Start accepts. Automaton has 6119 states and 7132 transitions. Word has length 389 [2021-02-22 02:30:40,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:30:40,803 INFO L480 AbstractCegarLoop]: Abstraction has 6119 states and 7132 transitions. [2021-02-22 02:30:40,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:30:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand 6119 states and 7132 transitions. [2021-02-22 02:30:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-02-22 02:30:40,810 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:30:40,811 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:30:40,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-22 02:30:40,811 INFO L428 AbstractCegarLoop]: === Iteration 23 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:30:40,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:30:40,812 INFO L82 PathProgramCache]: Analyzing trace with hash -484686856, now seen corresponding path program 1 times [2021-02-22 02:30:40,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:30:40,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003490048] [2021-02-22 02:30:40,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:30:40,815 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:30:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:40,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:40,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:40,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:40,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:30:40,952 WARN L141 QuantifierPusher]: treesize reduction 26, result has 33.3 percent of original size [2021-02-22 02:30:40,954 WARN L147 QuantifierPusher]: treesize reduction 26, result has 33.3 percent of original size 13 [2021-02-22 02:30:40,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:40,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:40,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:40,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,267 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:30:41,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:30:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:30:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:30:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:30:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:41,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:41,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:30:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:30:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:30:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-22 02:30:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:41,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:41,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:30:41,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:30:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:30:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-02-22 02:30:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:30:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:30:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:30:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:30:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:30:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:41,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:30:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:41,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:41,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:42,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:30:42,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003490048] [2021-02-22 02:30:42,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:30:42,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:30:42,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262313743] [2021-02-22 02:30:42,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:30:42,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:30:42,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:30:42,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:30:42,076 INFO L87 Difference]: Start difference. First operand 6119 states and 7132 transitions. Second operand 19 states. [2021-02-22 02:30:42,237 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:30:44,454 WARN L202 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2021-02-22 02:30:44,921 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2021-02-22 02:30:45,149 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-22 02:30:45,561 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-22 02:30:48,519 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:30:48,745 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-22 02:30:49,054 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-22 02:30:49,257 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-22 02:30:50,033 WARN L202 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 156 [2021-02-22 02:30:51,668 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2021-02-22 02:30:51,874 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-22 02:30:53,649 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:30:53,809 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:30:54,069 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:30:54,289 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-22 02:30:57,729 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-22 02:30:58,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:30:58,290 INFO L93 Difference]: Finished difference Result 11614 states and 13583 transitions. [2021-02-22 02:30:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-22 02:30:58,292 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 389 [2021-02-22 02:30:58,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:30:58,329 INFO L225 Difference]: With dead ends: 11614 [2021-02-22 02:30:58,330 INFO L226 Difference]: Without dead ends: 6150 [2021-02-22 02:30:58,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=702, Invalid=2378, Unknown=0, NotChecked=0, Total=3080 [2021-02-22 02:30:58,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2021-02-22 02:31:01,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 6114. [2021-02-22 02:31:01,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6114 states. [2021-02-22 02:31:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6114 states to 6114 states and 7122 transitions. [2021-02-22 02:31:01,616 INFO L78 Accepts]: Start accepts. Automaton has 6114 states and 7122 transitions. Word has length 389 [2021-02-22 02:31:01,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:31:01,616 INFO L480 AbstractCegarLoop]: Abstraction has 6114 states and 7122 transitions. [2021-02-22 02:31:01,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:31:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 6114 states and 7122 transitions. [2021-02-22 02:31:01,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-02-22 02:31:01,621 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:31:01,622 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:31:01,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-22 02:31:01,622 INFO L428 AbstractCegarLoop]: === Iteration 24 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:31:01,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:31:01,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1739823215, now seen corresponding path program 1 times [2021-02-22 02:31:01,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:31:01,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317193327] [2021-02-22 02:31:01,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:31:01,626 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:31:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:01,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:01,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:31:01,718 WARN L141 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size [2021-02-22 02:31:01,718 WARN L147 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size 4 [2021-02-22 02:31:01,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:01,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,005 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:31:02,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:31:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:31:02,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:31:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:31:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:31:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:31:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:31:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:31:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:31:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:31:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-22 02:31:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:31:02,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:31:02,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:31:02,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:31:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:31:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-02-22 02:31:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:31:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:31:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:31:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:31:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:31:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:31:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:02,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:02,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:02,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:31:02,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317193327] [2021-02-22 02:31:02,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:31:02,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 02:31:02,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680747794] [2021-02-22 02:31:02,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 02:31:02,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:31:02,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 02:31:02,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-22 02:31:02,746 INFO L87 Difference]: Start difference. First operand 6114 states and 7122 transitions. Second operand 16 states. [2021-02-22 02:31:02,912 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:31:03,096 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:31:03,986 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:31:05,136 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:31:05,369 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-22 02:31:07,872 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:31:08,041 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:31:08,251 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:31:08,487 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-22 02:31:08,680 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-22 02:31:08,846 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-22 02:31:10,461 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-22 02:31:12,249 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:31:15,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:31:15,847 INFO L93 Difference]: Finished difference Result 11638 states and 13618 transitions. [2021-02-22 02:31:15,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-22 02:31:15,849 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 389 [2021-02-22 02:31:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:31:15,882 INFO L225 Difference]: With dead ends: 11638 [2021-02-22 02:31:15,883 INFO L226 Difference]: Without dead ends: 6134 [2021-02-22 02:31:15,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=628, Invalid=1724, Unknown=0, NotChecked=0, Total=2352 [2021-02-22 02:31:15,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2021-02-22 02:31:18,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 6110. [2021-02-22 02:31:18,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6110 states. [2021-02-22 02:31:18,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6110 states to 6110 states and 7108 transitions. [2021-02-22 02:31:18,750 INFO L78 Accepts]: Start accepts. Automaton has 6110 states and 7108 transitions. Word has length 389 [2021-02-22 02:31:18,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:31:18,751 INFO L480 AbstractCegarLoop]: Abstraction has 6110 states and 7108 transitions. [2021-02-22 02:31:18,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 02:31:18,751 INFO L276 IsEmpty]: Start isEmpty. Operand 6110 states and 7108 transitions. [2021-02-22 02:31:18,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-02-22 02:31:18,755 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:31:18,755 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:31:18,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-02-22 02:31:18,756 INFO L428 AbstractCegarLoop]: === Iteration 25 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:31:18,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:31:18,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1909142807, now seen corresponding path program 1 times [2021-02-22 02:31:18,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:31:18,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800137426] [2021-02-22 02:31:18,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:31:18,760 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:31:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:18,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:18,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:31:18,854 WARN L141 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size [2021-02-22 02:31:18,856 WARN L147 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size 4 [2021-02-22 02:31:18,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:18,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,137 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:31:19,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:31:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:31:19,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:31:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:31:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:31:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:31:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:31:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:31:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:31:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:31:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-22 02:31:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:31:19,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:31:19,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:31:19,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:31:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 02:31:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-02-22 02:31:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:31:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:31:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:31:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:31:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:31:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:31:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:31:19,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:31:19,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:31:19,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:31:19,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800137426] [2021-02-22 02:31:19,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:31:19,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 02:31:19,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527688529] [2021-02-22 02:31:19,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 02:31:19,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:31:19,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 02:31:19,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-22 02:31:19,769 INFO L87 Difference]: Start difference. First operand 6110 states and 7108 transitions. Second operand 16 states. [2021-02-22 02:31:19,936 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:31:20,154 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:31:21,149 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:31:22,386 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:31:22,597 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-22 02:31:23,007 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-02-22 02:31:23,881 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-02-22 02:31:24,998 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:31:25,175 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:31:25,351 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:31:25,564 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:31:25,782 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-22 02:31:25,987 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-22 02:31:26,165 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-22 02:31:27,840 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-22 02:31:29,581 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:31:29,760 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:31:33,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:31:33,513 INFO L93 Difference]: Finished difference Result 11563 states and 13516 transitions. [2021-02-22 02:31:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-22 02:31:33,514 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 390 [2021-02-22 02:31:33,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:31:33,556 INFO L225 Difference]: With dead ends: 11563 [2021-02-22 02:31:33,557 INFO L226 Difference]: Without dead ends: 6123 [2021-02-22 02:31:33,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=664, Invalid=1988, Unknown=0, NotChecked=0, Total=2652 [2021-02-22 02:31:33,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6123 states. [2021-02-22 02:31:36,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6123 to 6105. [2021-02-22 02:31:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6105 states. [2021-02-22 02:31:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6105 states to 6105 states and 7098 transitions. [2021-02-22 02:31:36,817 INFO L78 Accepts]: Start accepts. Automaton has 6105 states and 7098 transitions. Word has length 390 [2021-02-22 02:31:36,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:31:36,818 INFO L480 AbstractCegarLoop]: Abstraction has 6105 states and 7098 transitions. [2021-02-22 02:31:36,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 02:31:36,818 INFO L276 IsEmpty]: Start isEmpty. Operand 6105 states and 7098 transitions. [2021-02-22 02:31:36,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-02-22 02:31:36,830 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:31:36,831 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:31:36,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-02-22 02:31:36,831 INFO L428 AbstractCegarLoop]: === Iteration 26 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:31:36,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:31:36,832 INFO L82 PathProgramCache]: Analyzing trace with hash 971096905, now seen corresponding path program 1 times [2021-02-22 02:31:36,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:31:36,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474033291] [2021-02-22 02:31:36,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:31:36,837 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:31:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:31:36,912 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:31:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:31:37,027 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:31:37,724 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 02:31:37,725 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 02:31:37,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-02-22 02:31:37,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:31:37 BoogieIcfgContainer [2021-02-22 02:31:37,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:31:37,849 INFO L168 Benchmark]: Toolchain (without parser) took 342895.86 ms. Allocated memory was 151.0 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 107.0 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 548.7 MB. Max. memory is 8.0 GB. [2021-02-22 02:31:37,850 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 124.0 MB in the end (delta: 419.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:31:37,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.49 ms. Allocated memory is still 151.0 MB. Free memory was 105.9 MB in the beginning and 88.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-02-22 02:31:37,850 INFO L168 Benchmark]: Boogie Preprocessor took 107.81 ms. Allocated memory is still 151.0 MB. Free memory was 88.3 MB in the beginning and 85.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:31:37,850 INFO L168 Benchmark]: RCFGBuilder took 2550.32 ms. Allocated memory is still 151.0 MB. Free memory was 85.6 MB in the beginning and 105.9 MB in the end (delta: -20.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 8.0 GB. [2021-02-22 02:31:37,851 INFO L168 Benchmark]: TraceAbstraction took 339528.74 ms. Allocated memory was 151.0 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 105.4 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 546.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:31:37,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 124.0 MB in the end (delta: 419.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 690.49 ms. Allocated memory is still 151.0 MB. Free memory was 105.9 MB in the beginning and 88.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 107.81 ms. Allocated memory is still 151.0 MB. Free memory was 88.3 MB in the beginning and 85.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2550.32 ms. Allocated memory is still 151.0 MB. Free memory was 85.6 MB in the beginning and 105.9 MB in the end (delta: -20.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 339528.74 ms. Allocated memory was 151.0 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 105.4 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 546.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 619]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] msg_t nomsg = (msg_t )-1; [L25] port_t cs1 ; [L26] int8_t cs1_old ; [L27] int8_t cs1_new ; [L28] port_t cs2 ; [L29] int8_t cs2_old ; [L30] int8_t cs2_new ; [L31] port_t s1s2 ; [L32] int8_t s1s2_old ; [L33] int8_t s1s2_new ; [L34] port_t s1s1 ; [L35] int8_t s1s1_old ; [L36] int8_t s1s1_new ; [L37] port_t s2s1 ; [L38] int8_t s2s1_old ; [L39] int8_t s2s1_new ; [L40] port_t s2s2 ; [L41] int8_t s2s2_old ; [L42] int8_t s2s2_new ; [L43] port_t s1p ; [L44] int8_t s1p_old ; [L45] int8_t s1p_new ; [L46] port_t s2p ; [L47] int8_t s2p_old ; [L48] int8_t s2p_new ; [L51] _Bool side1Failed ; [L52] _Bool side2Failed ; [L53] msg_t side1_written ; [L54] msg_t side2_written ; [L60] static _Bool side1Failed_History_0 ; [L61] static _Bool side1Failed_History_1 ; [L62] static _Bool side1Failed_History_2 ; [L63] static _Bool side2Failed_History_0 ; [L64] static _Bool side2Failed_History_1 ; [L65] static _Bool side2Failed_History_2 ; [L66] static int8_t active_side_History_0 ; [L67] static int8_t active_side_History_1 ; [L68] static int8_t active_side_History_2 ; [L69] static msg_t manual_selection_History_0 ; [L70] static msg_t manual_selection_History_1 ; [L71] static msg_t manual_selection_History_2 ; [L542] int c1 ; [L543] int i2 ; [L546] c1 = 0 [L547] side1Failed = __VERIFIER_nondet_bool() [L548] side2Failed = __VERIFIER_nondet_bool() [L549] side1_written = __VERIFIER_nondet_char() [L550] side2_written = __VERIFIER_nondet_char() [L551] side1Failed_History_0 = __VERIFIER_nondet_bool() [L552] side1Failed_History_1 = __VERIFIER_nondet_bool() [L553] side1Failed_History_2 = __VERIFIER_nondet_bool() [L554] side2Failed_History_0 = __VERIFIER_nondet_bool() [L555] side2Failed_History_1 = __VERIFIER_nondet_bool() [L556] side2Failed_History_2 = __VERIFIER_nondet_bool() [L557] active_side_History_0 = __VERIFIER_nondet_char() [L558] active_side_History_1 = __VERIFIER_nondet_char() [L559] active_side_History_2 = __VERIFIER_nondet_char() [L560] manual_selection_History_0 = __VERIFIER_nondet_char() [L561] manual_selection_History_1 = __VERIFIER_nondet_char() [L562] manual_selection_History_2 = __VERIFIER_nondet_char() [L563] CALL, EXPR init() [L197] COND FALSE !((int )side1Failed_History_0 != 0) [L200] COND FALSE !((int )side2Failed_History_0 != 0) [L203] COND FALSE !((int )active_side_History_0 != -2) [L206] COND FALSE !((int )manual_selection_History_0 != 0) [L209] COND FALSE !((int )side1Failed_History_1 != 0) [L212] COND FALSE !((int )side2Failed_History_1 != 0) [L215] COND FALSE !((int )active_side_History_1 != -2) [L218] COND FALSE !((int )manual_selection_History_1 != 0) [L221] COND FALSE !((int )side1Failed_History_2 != 0) [L224] COND FALSE !((int )side2Failed_History_2 != 0) [L227] COND FALSE !((int )active_side_History_2 != -2) [L230] COND FALSE !((int )manual_selection_History_2 != 0) [L233] return (1); [L563] RET, EXPR init() [L563] i2 = init() [L564] CALL assume_abort_if_not(i2) [L58] COND FALSE !(!cond) [L564] RET assume_abort_if_not(i2) [L565] cs1_old = nomsg [L566] cs1_new = nomsg [L567] cs2_old = nomsg [L568] cs2_new = nomsg [L569] s1s2_old = nomsg [L570] s1s2_new = nomsg [L571] s1s1_old = nomsg [L572] s1s1_new = nomsg [L573] s2s1_old = nomsg [L574] s2s1_new = nomsg [L575] s2s2_old = nomsg [L576] s2s2_new = nomsg [L577] s1p_old = nomsg [L578] s1p_new = nomsg [L579] s2p_old = nomsg [L580] s2p_new = nomsg [L581] i2 = 0 [L582] COND TRUE i2 < 10 [L584] CALL Console_task_each_pals_period() [L251] msg_t manual_selection ; [L252] char tmp ; [L255] tmp = __VERIFIER_nondet_char() [L256] manual_selection = tmp [L257] CALL write_manual_selection_history(manual_selection) [L167] manual_selection_History_2 = manual_selection_History_1 [L168] manual_selection_History_1 = manual_selection_History_0 [L169] manual_selection_History_0 = val [L257] RET write_manual_selection_history(manual_selection) [L258] EXPR manual_selection != nomsg && cs1_new == nomsg ? manual_selection : cs1_new [L258] cs1_new = manual_selection != nomsg && cs1_new == nomsg ? manual_selection : cs1_new [L259] EXPR manual_selection != nomsg && cs2_new == nomsg ? manual_selection : cs2_new [L259] cs2_new = manual_selection != nomsg && cs2_new == nomsg ? manual_selection : cs2_new [L260] manual_selection = (msg_t )0 [L584] RET Console_task_each_pals_period() [L585] CALL Side1_activestandby_task_each_pals_period() [L266] int8_t side1 ; [L267] int8_t side2 ; [L268] msg_t manual_selection ; [L269] int8_t next_state ; [L272] side1 = nomsg [L273] side2 = nomsg [L274] manual_selection = (msg_t )0 [L275] side1Failed = __VERIFIER_nondet_bool() [L276] CALL write_side1_failed_history(side1Failed) [L77] side1Failed_History_2 = side1Failed_History_1 [L78] side1Failed_History_1 = side1Failed_History_0 [L79] side1Failed_History_0 = val [L276] RET write_side1_failed_history(side1Failed) [L277] COND FALSE !(\read(side1Failed)) [L284] side1 = s1s1_old [L285] s1s1_old = nomsg [L286] side2 = s2s1_old [L287] s2s1_old = nomsg [L288] manual_selection = cs1_old [L289] cs1_old = nomsg [L290] COND TRUE (int )side1 == (int )side2 [L291] next_state = (int8_t )1 [L314] EXPR next_state != nomsg && s1s1_new == nomsg ? next_state : s1s1_new [L314] s1s1_new = next_state != nomsg && s1s1_new == nomsg ? next_state : s1s1_new [L315] EXPR next_state != nomsg && s1s2_new == nomsg ? next_state : s1s2_new [L315] s1s2_new = next_state != nomsg && s1s2_new == nomsg ? next_state : s1s2_new [L316] EXPR next_state != nomsg && s1p_new == nomsg ? next_state : s1p_new [L316] s1p_new = next_state != nomsg && s1p_new == nomsg ? next_state : s1p_new [L317] side1_written = next_state [L585] RET Side1_activestandby_task_each_pals_period() [L586] CALL Side2_activestandby_task_each_pals_period() [L323] int8_t side1 ; [L324] int8_t side2 ; [L325] msg_t manual_selection ; [L326] int8_t next_state ; [L329] side1 = nomsg [L330] side2 = nomsg [L331] manual_selection = (msg_t )0 [L332] side2Failed = __VERIFIER_nondet_bool() [L333] CALL write_side2_failed_history(side2Failed) [L107] side2Failed_History_2 = side2Failed_History_1 [L108] side2Failed_History_1 = side2Failed_History_0 [L109] side2Failed_History_0 = val [L333] RET write_side2_failed_history(side2Failed) [L334] COND FALSE !(\read(side2Failed)) [L341] side1 = s1s2_old [L342] s1s2_old = nomsg [L343] side2 = s2s2_old [L344] s2s2_old = nomsg [L345] manual_selection = cs2_old [L346] cs2_old = nomsg [L347] COND TRUE (int )side1 == (int )side2 [L348] next_state = (int8_t )1 [L371] EXPR next_state != nomsg && s2s1_new == nomsg ? next_state : s2s1_new [L371] s2s1_new = next_state != nomsg && s2s1_new == nomsg ? next_state : s2s1_new [L372] EXPR next_state != nomsg && s2s2_new == nomsg ? next_state : s2s2_new [L372] s2s2_new = next_state != nomsg && s2s2_new == nomsg ? next_state : s2s2_new [L373] EXPR next_state != nomsg && s2p_new == nomsg ? next_state : s2p_new [L373] s2p_new = next_state != nomsg && s2p_new == nomsg ? next_state : s2p_new [L374] side2_written = next_state [L586] RET Side2_activestandby_task_each_pals_period() [L587] CALL Pendulum_prism_task_each_pals_period() [L380] int8_t active_side ; [L381] int8_t tmp ; [L382] int8_t side1 ; [L383] int8_t side2 ; [L386] CALL, EXPR read_active_side_history((unsigned char)0) [L148] COND TRUE (int )index == 0 [L149] return (active_side_History_0); [L386] RET, EXPR read_active_side_history((unsigned char)0) [L386] tmp = read_active_side_history((unsigned char)0) [L387] active_side = tmp [L388] side1 = nomsg [L389] side2 = nomsg [L390] side1 = s1p_old [L391] s1p_old = nomsg [L392] side2 = s2p_old [L393] s2p_old = nomsg [L394] COND FALSE !((int )side1 == 1) [L397] COND FALSE !((int )side2 == 1) [L400] COND FALSE !((int )side1 == 0) [L408] COND TRUE (int )side1 == (int )nomsg [L409] COND FALSE !((int )side2 == 0) [L412] active_side = (int8_t )0 [L417] CALL write_active_side_history(active_side) [L137] active_side_History_2 = active_side_History_1 [L138] active_side_History_1 = active_side_History_0 [L139] active_side_History_0 = val [L417] RET write_active_side_history(active_side) [L587] RET Pendulum_prism_task_each_pals_period() [L588] cs1_old = cs1_new [L589] cs1_new = nomsg [L590] cs2_old = cs2_new [L591] cs2_new = nomsg [L592] s1s2_old = s1s2_new [L593] s1s2_new = nomsg [L594] s1s1_old = s1s1_new [L595] s1s1_new = nomsg [L596] s2s1_old = s2s1_new [L597] s2s1_new = nomsg [L598] s2s2_old = s2s2_new [L599] s2s2_new = nomsg [L600] s1p_old = s1p_new [L601] s1p_new = nomsg [L602] s2p_old = s2p_new [L603] s2p_new = nomsg [L604] CALL, EXPR check() [L423] int tmp ; [L424] msg_t tmp___0 ; [L425] _Bool tmp___1 ; [L426] _Bool tmp___2 ; [L427] _Bool tmp___3 ; [L428] _Bool tmp___4 ; [L429] int8_t tmp___5 ; [L430] _Bool tmp___6 ; [L431] _Bool tmp___7 ; [L432] _Bool tmp___8 ; [L433] int8_t tmp___9 ; [L434] _Bool tmp___10 ; [L435] _Bool tmp___11 ; [L436] _Bool tmp___12 ; [L437] msg_t tmp___13 ; [L438] _Bool tmp___14 ; [L439] _Bool tmp___15 ; [L440] _Bool tmp___16 ; [L441] _Bool tmp___17 ; [L442] int8_t tmp___18 ; [L443] int8_t tmp___19 ; [L444] int8_t tmp___20 ; [L447] COND TRUE ! side1Failed [L448] tmp = 1 [L455] CALL assume_abort_if_not((_Bool )tmp) [L58] COND FALSE !(!cond) [L455] RET assume_abort_if_not((_Bool )tmp) [L456] CALL, EXPR read_manual_selection_history((unsigned char)1) [L178] COND FALSE !((int )index == 0) [L181] COND TRUE (int )index == 1 [L182] return (manual_selection_History_1); [L456] RET, EXPR read_manual_selection_history((unsigned char)1) [L456] tmp___0 = read_manual_selection_history((unsigned char)1) [L457] COND TRUE ! tmp___0 [L458] CALL, EXPR read_side1_failed_history((unsigned char)1) [L88] COND FALSE !((int )index == 0) [L91] COND TRUE (int )index == 1 [L92] return (side1Failed_History_1); [L458] RET, EXPR read_side1_failed_history((unsigned char)1) [L458] tmp___1 = read_side1_failed_history((unsigned char)1) [L459] COND TRUE ! tmp___1 [L460] CALL, EXPR read_side1_failed_history((unsigned char)0) [L88] COND TRUE (int )index == 0 [L89] return (side1Failed_History_0); [L460] RET, EXPR read_side1_failed_history((unsigned char)0) [L460] tmp___2 = read_side1_failed_history((unsigned char)0) [L461] COND TRUE ! tmp___2 [L462] CALL, EXPR read_side2_failed_history((unsigned char)1) [L118] COND FALSE !((int )index == 0) [L121] COND TRUE (int )index == 1 [L122] return (side2Failed_History_1); [L462] RET, EXPR read_side2_failed_history((unsigned char)1) [L462] tmp___3 = read_side2_failed_history((unsigned char)1) [L463] COND TRUE ! tmp___3 [L464] CALL, EXPR read_side2_failed_history((unsigned char)0) [L118] COND TRUE (int )index == 0 [L119] return (side2Failed_History_0); [L464] RET, EXPR read_side2_failed_history((unsigned char)0) [L464] tmp___4 = read_side2_failed_history((unsigned char)0) [L465] COND TRUE ! tmp___4 [L466] COND FALSE !(! ((int )side1_written == 1)) [L471] COND FALSE !(! (! ((int )side1_written == 0))) [L476] COND TRUE ! (! ((int )side1_written == 1)) [L477] COND TRUE ! ((int )side2_written == 0) [L478] return (0); [L604] RET, EXPR check() [L604] c1 = check() [L605] CALL assert(c1) [L617] COND TRUE ! arg [L619] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 585 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 339.2s, OverallIterations: 26, TraceHistogramMax: 2, AutomataDifference: 279.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16426 SDtfs, 83944 SDslu, 26868 SDs, 0 SdLazy, 75314 SolverSat, 14737 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 114.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1883 GetRequests, 814 SyntacticMatches, 18 SemanticMatches, 1051 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10999 ImplicationChecksByTransitivity, 101.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6491occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 31.6s AutomataMinimizationTime, 25 MinimizatonAttempts, 5820 StatesRemovedByMinimization, 18 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...