/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-36cd7be [2021-02-24 04:51:22,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:51:22,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:51:22,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:51:22,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:51:22,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:51:22,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:51:22,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:51:22,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:51:22,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:51:22,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:51:22,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:51:22,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:51:22,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:51:22,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:51:22,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:51:22,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:51:22,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:51:22,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:51:22,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:51:22,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:51:22,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:51:22,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:51:22,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:51:22,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:51:22,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:51:22,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:51:22,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:51:22,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:51:22,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:51:22,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:51:22,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:51:22,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:51:22,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:51:22,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:51:22,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:51:22,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:51:22,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:51:22,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:51:22,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:51:22,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:51:22,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:51:22,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:51:22,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:51:22,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:51:22,362 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:51:22,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:51:22,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:51:22,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:51:22,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:51:22,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:51:22,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:51:22,364 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:51:22,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:51:22,365 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:51:22,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:51:22,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:51:22,365 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:51:22,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:51:22,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:51:22,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:51:22,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:51:22,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:51:22,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:51:22,367 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:51:22,367 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:51:22,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:51:22,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:51:22,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:51:22,852 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:51:22,854 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:51:22,855 INFO L432 ainManager$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 [2021-02-24 04:51:22,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b706c842/6a65cea91ff24c38a3a023828aa5c9d4/FLAG462bc7d3d [2021-02-24 04:51:23,721 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:51:23,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2021-02-24 04:51:23,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b706c842/6a65cea91ff24c38a3a023828aa5c9d4/FLAG462bc7d3d [2021-02-24 04:51:23,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b706c842/6a65cea91ff24c38a3a023828aa5c9d4 [2021-02-24 04:51:23,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:51:24,004 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:51:24,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:51:24,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:51:24,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:51:24,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:51:23" (1/1) ... [2021-02-24 04:51:24,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c90b38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24, skipping insertion in model container [2021-02-24 04:51:24,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:51:23" (1/1) ... [2021-02-24 04:51:24,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:51:24,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:51:24,519 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] [2021-02-24 04:51:24,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:51:24,551 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:51:24,673 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] [2021-02-24 04:51:24,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:51:24,702 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:51:24,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24 WrapperNode [2021-02-24 04:51:24,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:51:24,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:51:24,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:51:24,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:51:24,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24" (1/1) ... [2021-02-24 04:51:24,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24" (1/1) ... [2021-02-24 04:51:24,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24" (1/1) ... [2021-02-24 04:51:24,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24" (1/1) ... [2021-02-24 04:51:24,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24" (1/1) ... [2021-02-24 04:51:24,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24" (1/1) ... [2021-02-24 04:51:24,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24" (1/1) ... [2021-02-24 04:51:24,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:51:24,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:51:24,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:51:24,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:51:24,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:51:24,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:51:24,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:51:24,942 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:51:24,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 04:51:24,943 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2021-02-24 04:51:24,943 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2021-02-24 04:51:24,943 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2021-02-24 04:51:24,943 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2021-02-24 04:51:24,944 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2021-02-24 04:51:24,944 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2021-02-24 04:51:24,944 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2021-02-24 04:51:24,944 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2021-02-24 04:51:24,944 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2021-02-24 04:51:24,945 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2021-02-24 04:51:24,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2021-02-24 04:51:24,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2021-02-24 04:51:24,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2021-02-24 04:51:24,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2021-02-24 04:51:24,946 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2021-02-24 04:51:24,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:51:24,946 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-02-24 04:51:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:51:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:51:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:51:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:51:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-02-24 04:51:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-02-24 04:51:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure read [2021-02-24 04:51:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure write [2021-02-24 04:51:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-02-24 04:51:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 04:51:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2021-02-24 04:51:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2021-02-24 04:51:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2021-02-24 04:51:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2021-02-24 04:51:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2021-02-24 04:51:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2021-02-24 04:51:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2021-02-24 04:51:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2021-02-24 04:51:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure init [2021-02-24 04:51:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2021-02-24 04:51:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2021-02-24 04:51:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2021-02-24 04:51:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2021-02-24 04:51:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2021-02-24 04:51:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure check [2021-02-24 04:51:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:51:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:51:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:51:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:51:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:51:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:51:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:51:26,217 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:51:26,217 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:51:26,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:51:26 BoogieIcfgContainer [2021-02-24 04:51:26,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:51:26,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:51:26,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:51:26,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:51:26,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:51:23" (1/3) ... [2021-02-24 04:51:26,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eaad500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:51:26, skipping insertion in model container [2021-02-24 04:51:26,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:51:24" (2/3) ... [2021-02-24 04:51:26,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eaad500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:51:26, skipping insertion in model container [2021-02-24 04:51:26,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:51:26" (3/3) ... [2021-02-24 04:51:26,233 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2021-02-24 04:51:26,241 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:51:26,248 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:51:26,272 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:51:26,306 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:51:26,306 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:51:26,306 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:51:26,307 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:51:26,307 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:51:26,307 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:51:26,307 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:51:26,307 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:51:26,339 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states. [2021-02-24 04:51:26,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-02-24 04:51:26,367 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:51:26,368 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] [2021-02-24 04:51:26,369 INFO L428 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:51:26,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:51:26,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1866427219, now seen corresponding path program 1 times [2021-02-24 04:51:26,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:51:26,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209713990] [2021-02-24 04:51:26,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:51:26,491 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:51:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:26,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:26,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:26,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:26,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:26,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:26,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:26,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:26,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,184 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:51:27,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:51:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:27,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:51:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:27,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:51:27,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 04:51:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:27,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:27,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:51:27,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-24 04:51:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:27,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:51:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:27,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-24 04:51:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:27,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:51:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:27,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-02-24 04:51:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:27,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:51:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:27,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:27,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:51:27,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209713990] [2021-02-24 04:51:27,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:51:27,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 04:51:27,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823023205] [2021-02-24 04:51:27,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 04:51:27,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:51:27,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 04:51:27,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:51:27,857 INFO L87 Difference]: Start difference. First operand 582 states. Second operand 14 states. [2021-02-24 04:51:29,055 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:51:29,569 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:51:29,841 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:51:34,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:51:34,470 INFO L93 Difference]: Finished difference Result 1063 states and 1326 transitions. [2021-02-24 04:51:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-24 04:51:34,472 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 232 [2021-02-24 04:51:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:51:34,492 INFO L225 Difference]: With dead ends: 1063 [2021-02-24 04:51:34,492 INFO L226 Difference]: Without dead ends: 585 [2021-02-24 04:51:34,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-02-24 04:51:34,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2021-02-24 04:51:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 557. [2021-02-24 04:51:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2021-02-24 04:51:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 650 transitions. [2021-02-24 04:51:34,830 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 650 transitions. Word has length 232 [2021-02-24 04:51:34,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:51:34,834 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 650 transitions. [2021-02-24 04:51:34,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 04:51:34,835 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 650 transitions. [2021-02-24 04:51:34,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-24 04:51:34,859 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:51:34,860 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] [2021-02-24 04:51:34,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:51:34,861 INFO L428 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:51:34,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:51:34,862 INFO L82 PathProgramCache]: Analyzing trace with hash 76175079, now seen corresponding path program 1 times [2021-02-24 04:51:34,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:51:34,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503834356] [2021-02-24 04:51:34,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:51:34,874 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:51:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:35,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:35,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:35,095 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-24 04:51:35,097 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-24 04:51:35,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,315 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:51:35,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:51:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:35,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:51:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:35,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:51:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:35,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:51:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:35,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:51:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:35,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:51:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:35,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:51:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:35,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:51:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:35,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:51:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:35,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:35,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:35,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:51:35,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503834356] [2021-02-24 04:51:35,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:51:35,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-24 04:51:35,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541467976] [2021-02-24 04:51:35,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 04:51:35,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:51:35,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 04:51:35,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-02-24 04:51:35,679 INFO L87 Difference]: Start difference. First operand 557 states and 650 transitions. Second operand 11 states. [2021-02-24 04:51:35,809 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-24 04:51:37,828 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:51:38,077 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:51:39,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:51:39,822 INFO L93 Difference]: Finished difference Result 986 states and 1177 transitions. [2021-02-24 04:51:39,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-24 04:51:39,823 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 243 [2021-02-24 04:51:39,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:51:39,836 INFO L225 Difference]: With dead ends: 986 [2021-02-24 04:51:39,836 INFO L226 Difference]: Without dead ends: 562 [2021-02-24 04:51:39,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2021-02-24 04:51:39,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-02-24 04:51:40,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2021-02-24 04:51:40,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2021-02-24 04:51:40,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 654 transitions. [2021-02-24 04:51:40,049 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 654 transitions. Word has length 243 [2021-02-24 04:51:40,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:51:40,050 INFO L480 AbstractCegarLoop]: Abstraction has 562 states and 654 transitions. [2021-02-24 04:51:40,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 04:51:40,051 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 654 transitions. [2021-02-24 04:51:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-02-24 04:51:40,057 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:51:40,058 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] [2021-02-24 04:51:40,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:51:40,058 INFO L428 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:51:40,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:51:40,059 INFO L82 PathProgramCache]: Analyzing trace with hash 985442721, now seen corresponding path program 1 times [2021-02-24 04:51:40,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:51:40,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298329117] [2021-02-24 04:51:40,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:51:40,064 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:51:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:51:40,192 WARN L141 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size [2021-02-24 04:51:40,193 WARN L147 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size 4 [2021-02-24 04:51:40,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,398 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:51:40,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:51:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:51:40,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:51:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:51:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:51:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:51:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:51:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:51:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:51:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:51:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:51:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:40,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:40,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:40,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:51:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 04:51:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-02-24 04:51:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:40,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:40,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 04:51:40,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298329117] [2021-02-24 04:51:40,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:51:40,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-24 04:51:40,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664827701] [2021-02-24 04:51:40,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 04:51:40,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:51:40,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 04:51:40,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:51:40,988 INFO L87 Difference]: Start difference. First operand 562 states and 654 transitions. Second operand 16 states. [2021-02-24 04:51:41,268 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:51:41,981 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:51:44,377 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:51:44,516 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:51:44,661 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-24 04:51:45,397 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:51:47,931 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:51:48,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:51:48,613 INFO L93 Difference]: Finished difference Result 1191 states and 1400 transitions. [2021-02-24 04:51:48,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-24 04:51:48,614 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 316 [2021-02-24 04:51:48,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:51:48,623 INFO L225 Difference]: With dead ends: 1191 [2021-02-24 04:51:48,624 INFO L226 Difference]: Without dead ends: 762 [2021-02-24 04:51:48,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=578, Invalid=1774, Unknown=0, NotChecked=0, Total=2352 [2021-02-24 04:51:48,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-02-24 04:51:48,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 754. [2021-02-24 04:51:48,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2021-02-24 04:51:48,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 871 transitions. [2021-02-24 04:51:48,858 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 871 transitions. Word has length 316 [2021-02-24 04:51:48,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:51:48,859 INFO L480 AbstractCegarLoop]: Abstraction has 754 states and 871 transitions. [2021-02-24 04:51:48,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 04:51:48,859 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 871 transitions. [2021-02-24 04:51:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-02-24 04:51:48,865 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:51:48,865 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] [2021-02-24 04:51:48,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:51:48,866 INFO L428 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:51:48,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:51:48,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1167012846, now seen corresponding path program 1 times [2021-02-24 04:51:48,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:51:48,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767745949] [2021-02-24 04:51:48,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:51:48,871 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:51:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:48,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:48,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:51:48,967 WARN L141 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size [2021-02-24 04:51:48,967 WARN L147 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size 4 [2021-02-24 04:51:48,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:48,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,177 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:51:49,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:51:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:51:49,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:51:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:51:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:51:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:51:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:51:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:51:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:51:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:51:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:51:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:49,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:49,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:49,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:51:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:51:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-02-24 04:51:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:49,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:49,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:49,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:51:49,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [767745949] [2021-02-24 04:51:49,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:51:49,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-24 04:51:49,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133062059] [2021-02-24 04:51:49,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 04:51:49,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:51:49,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 04:51:49,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:51:49,747 INFO L87 Difference]: Start difference. First operand 754 states and 871 transitions. Second operand 16 states. [2021-02-24 04:51:50,008 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:51:50,818 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:51:53,335 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-24 04:51:53,466 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:51:53,615 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-24 04:51:54,403 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:51:57,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:51:57,473 INFO L93 Difference]: Finished difference Result 1199 states and 1410 transitions. [2021-02-24 04:51:57,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-24 04:51:57,474 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 317 [2021-02-24 04:51:57,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:51:57,481 INFO L225 Difference]: With dead ends: 1199 [2021-02-24 04:51:57,481 INFO L226 Difference]: Without dead ends: 767 [2021-02-24 04:51:57,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=606, Invalid=2046, Unknown=0, NotChecked=0, Total=2652 [2021-02-24 04:51:57,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2021-02-24 04:51:57,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 754. [2021-02-24 04:51:57,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2021-02-24 04:51:57,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 871 transitions. [2021-02-24 04:51:57,739 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 871 transitions. Word has length 317 [2021-02-24 04:51:57,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:51:57,741 INFO L480 AbstractCegarLoop]: Abstraction has 754 states and 871 transitions. [2021-02-24 04:51:57,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 04:51:57,741 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 871 transitions. [2021-02-24 04:51:57,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-02-24 04:51:57,747 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:51:57,747 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] [2021-02-24 04:51:57,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:51:57,748 INFO L428 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:51:57,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:51:57,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1260005446, now seen corresponding path program 1 times [2021-02-24 04:51:57,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:51:57,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746954970] [2021-02-24 04:51:57,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:51:57,762 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:51:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:57,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:57,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:57,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:57,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:51:57,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:57,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,060 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:51:58,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:51:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:51:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:51:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:51:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:51:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:51:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:51:58,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:51:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:51:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:51:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:51:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:51:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:51:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-02-24 04:51:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:58,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:58,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:58,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:51:58,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746954970] [2021-02-24 04:51:58,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:51:58,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:51:58,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881164915] [2021-02-24 04:51:58,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:51:58,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:51:58,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:51:58,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:51:58,486 INFO L87 Difference]: Start difference. First operand 754 states and 871 transitions. Second operand 12 states. [2021-02-24 04:51:58,608 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:52:00,292 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:52:01,639 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-24 04:52:04,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:52:04,636 INFO L93 Difference]: Finished difference Result 1646 states and 1951 transitions. [2021-02-24 04:52:04,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-24 04:52:04,639 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 319 [2021-02-24 04:52:04,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:52:04,649 INFO L225 Difference]: With dead ends: 1646 [2021-02-24 04:52:04,649 INFO L226 Difference]: Without dead ends: 1214 [2021-02-24 04:52:04,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=347, Invalid=843, Unknown=0, NotChecked=0, Total=1190 [2021-02-24 04:52:04,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2021-02-24 04:52:05,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1172. [2021-02-24 04:52:05,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2021-02-24 04:52:05,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1380 transitions. [2021-02-24 04:52:05,024 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1380 transitions. Word has length 319 [2021-02-24 04:52:05,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:52:05,025 INFO L480 AbstractCegarLoop]: Abstraction has 1172 states and 1380 transitions. [2021-02-24 04:52:05,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:52:05,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1380 transitions. [2021-02-24 04:52:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-02-24 04:52:05,033 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:52:05,033 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] [2021-02-24 04:52:05,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:52:05,034 INFO L428 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:52:05,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:52:05,035 INFO L82 PathProgramCache]: Analyzing trace with hash 149582571, now seen corresponding path program 1 times [2021-02-24 04:52:05,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:52:05,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728162090] [2021-02-24 04:52:05,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:52:05,039 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:52:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:52:05,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,365 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:52:05,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:52:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:52:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:52:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:52:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:52:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:52:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:52:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:52:05,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:52:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:52:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:52:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-24 04:52:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:05,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:05,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:05,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:52:05,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728162090] [2021-02-24 04:52:05,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:52:05,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:52:05,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099940869] [2021-02-24 04:52:05,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:52:05,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:52:05,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:52:05,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:52:05,786 INFO L87 Difference]: Start difference. First operand 1172 states and 1380 transitions. Second operand 12 states. [2021-02-24 04:52:08,703 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:52:12,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:52:12,742 INFO L93 Difference]: Finished difference Result 2592 states and 3130 transitions. [2021-02-24 04:52:12,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-24 04:52:12,742 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 320 [2021-02-24 04:52:12,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:52:12,756 INFO L225 Difference]: With dead ends: 2592 [2021-02-24 04:52:12,756 INFO L226 Difference]: Without dead ends: 1832 [2021-02-24 04:52:12,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=348, Invalid=842, Unknown=0, NotChecked=0, Total=1190 [2021-02-24 04:52:12,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2021-02-24 04:52:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1812. [2021-02-24 04:52:13,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1812 states. [2021-02-24 04:52:13,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2173 transitions. [2021-02-24 04:52:13,314 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2173 transitions. Word has length 320 [2021-02-24 04:52:13,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:52:13,315 INFO L480 AbstractCegarLoop]: Abstraction has 1812 states and 2173 transitions. [2021-02-24 04:52:13,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:52:13,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2173 transitions. [2021-02-24 04:52:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-02-24 04:52:13,320 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:52:13,321 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] [2021-02-24 04:52:13,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 04:52:13,321 INFO L428 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:52:13,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:52:13,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1154331829, now seen corresponding path program 1 times [2021-02-24 04:52:13,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:52:13,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548815359] [2021-02-24 04:52:13,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:52:13,326 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:52:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:52:13,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:52:13,434 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-24 04:52:13,435 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-24 04:52:13,443 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-24 04:52:13,444 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-24 04:52:13,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,658 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:52:13,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:52:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:52:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:52:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:52:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:52:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:52:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:52:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:52:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:52:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:52:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:13,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-24 04:52:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:13,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:14,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:52:14,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548815359] [2021-02-24 04:52:14,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:52:14,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:52:14,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435899745] [2021-02-24 04:52:14,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:52:14,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:52:14,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:52:14,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:52:14,050 INFO L87 Difference]: Start difference. First operand 1812 states and 2173 transitions. Second operand 13 states. [2021-02-24 04:52:17,606 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:52:17,837 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:52:19,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:52:19,380 INFO L93 Difference]: Finished difference Result 3210 states and 3909 transitions. [2021-02-24 04:52:19,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 04:52:19,381 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 320 [2021-02-24 04:52:19,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:52:19,395 INFO L225 Difference]: With dead ends: 3210 [2021-02-24 04:52:19,396 INFO L226 Difference]: Without dead ends: 1836 [2021-02-24 04:52:19,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:52:19,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2021-02-24 04:52:20,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1836. [2021-02-24 04:52:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2021-02-24 04:52:20,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2193 transitions. [2021-02-24 04:52:20,014 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2193 transitions. Word has length 320 [2021-02-24 04:52:20,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:52:20,015 INFO L480 AbstractCegarLoop]: Abstraction has 1836 states and 2193 transitions. [2021-02-24 04:52:20,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:52:20,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2193 transitions. [2021-02-24 04:52:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-02-24 04:52:20,021 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:52:20,021 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] [2021-02-24 04:52:20,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 04:52:20,022 INFO L428 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:52:20,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:52:20,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1735295062, now seen corresponding path program 1 times [2021-02-24 04:52:20,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:52:20,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983187244] [2021-02-24 04:52:20,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:52:20,027 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:52:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:52:20,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,351 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:52:20,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:52:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:52:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:52:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:52:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:52:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:52:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:52:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:52:20,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-24 04:52:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:52:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:52:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-02-24 04:52:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-02-24 04:52:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:20,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:20,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:52:20,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983187244] [2021-02-24 04:52:20,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:52:20,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:52:20,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590101491] [2021-02-24 04:52:20,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:52:20,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:52:20,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:52:20,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:52:20,755 INFO L87 Difference]: Start difference. First operand 1836 states and 2193 transitions. Second operand 12 states. [2021-02-24 04:52:21,638 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:52:23,896 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-24 04:52:27,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:52:27,287 INFO L93 Difference]: Finished difference Result 3262 states and 3940 transitions. [2021-02-24 04:52:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-24 04:52:27,288 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 339 [2021-02-24 04:52:27,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:52:27,305 INFO L225 Difference]: With dead ends: 3262 [2021-02-24 04:52:27,305 INFO L226 Difference]: Without dead ends: 1864 [2021-02-24 04:52:27,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=352, Invalid=980, Unknown=0, NotChecked=0, Total=1332 [2021-02-24 04:52:27,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2021-02-24 04:52:28,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1844. [2021-02-24 04:52:28,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1844 states. [2021-02-24 04:52:28,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2198 transitions. [2021-02-24 04:52:28,032 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2198 transitions. Word has length 339 [2021-02-24 04:52:28,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:52:28,034 INFO L480 AbstractCegarLoop]: Abstraction has 1844 states and 2198 transitions. [2021-02-24 04:52:28,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:52:28,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2198 transitions. [2021-02-24 04:52:28,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-02-24 04:52:28,042 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:52:28,043 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] [2021-02-24 04:52:28,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 04:52:28,043 INFO L428 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:52:28,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:52:28,044 INFO L82 PathProgramCache]: Analyzing trace with hash -180945527, now seen corresponding path program 1 times [2021-02-24 04:52:28,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:52:28,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824071819] [2021-02-24 04:52:28,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:52:28,048 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:52:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:52:28,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:52:28,202 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-24 04:52:28,203 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-24 04:52:28,210 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-24 04:52:28,211 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-24 04:52:28,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,439 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:52:28,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:52:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:52:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:52:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:52:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:52:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:52:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:52:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:52:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:52:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:52:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-24 04:52:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-24 04:52:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:28,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:28,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:28,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:52:28,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824071819] [2021-02-24 04:52:28,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:52:28,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:52:28,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317648091] [2021-02-24 04:52:28,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:52:28,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:52:28,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:52:28,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:52:28,832 INFO L87 Difference]: Start difference. First operand 1844 states and 2198 transitions. Second operand 13 states. [2021-02-24 04:52:28,958 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:52:32,375 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:52:32,612 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:52:34,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:52:34,035 INFO L93 Difference]: Finished difference Result 3266 states and 3961 transitions. [2021-02-24 04:52:34,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 04:52:34,035 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 331 [2021-02-24 04:52:34,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:52:34,050 INFO L225 Difference]: With dead ends: 3266 [2021-02-24 04:52:34,050 INFO L226 Difference]: Without dead ends: 1868 [2021-02-24 04:52:34,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:52:34,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2021-02-24 04:52:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1868. [2021-02-24 04:52:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1868 states. [2021-02-24 04:52:34,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2218 transitions. [2021-02-24 04:52:34,564 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2218 transitions. Word has length 331 [2021-02-24 04:52:34,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:52:34,565 INFO L480 AbstractCegarLoop]: Abstraction has 1868 states and 2218 transitions. [2021-02-24 04:52:34,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:52:34,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2218 transitions. [2021-02-24 04:52:34,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-02-24 04:52:34,570 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:52:34,570 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] [2021-02-24 04:52:34,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 04:52:34,571 INFO L428 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:52:34,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:52:34,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1023019346, now seen corresponding path program 1 times [2021-02-24 04:52:34,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:52:34,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631048904] [2021-02-24 04:52:34,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:52:34,575 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:52:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:34,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:34,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:34,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:34,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:52:34,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:34,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:52:34,670 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-24 04:52:34,671 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-24 04:52:34,677 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-24 04:52:34,678 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-24 04:52:34,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:34,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:34,890 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:52:34,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:52:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:34,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:34,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:34,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:52:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:34,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:34,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:34,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:52:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:34,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:34,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:34,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:52:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:34,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:34,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:34,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:52:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:34,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:34,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:34,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:52:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:35,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:35,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:35,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:35,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:35,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:35,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:52:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:35,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:35,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:35,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:35,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:35,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:35,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:52:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:35,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:35,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:35,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:52:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:35,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:35,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:35,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:52:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:35,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:35,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:35,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-24 04:52:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:35,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:35,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:35,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-24 04:52:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:35,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:35,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:35,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-24 04:52:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:35,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:35,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:52:35,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631048904] [2021-02-24 04:52:35,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:52:35,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:52:35,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645107881] [2021-02-24 04:52:35,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:52:35,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:52:35,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:52:35,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:52:35,288 INFO L87 Difference]: Start difference. First operand 1868 states and 2218 transitions. Second operand 13 states. [2021-02-24 04:52:38,677 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:52:38,919 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:52:40,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:52:40,354 INFO L93 Difference]: Finished difference Result 3314 states and 4001 transitions. [2021-02-24 04:52:40,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 04:52:40,355 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 341 [2021-02-24 04:52:40,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:52:40,368 INFO L225 Difference]: With dead ends: 3314 [2021-02-24 04:52:40,368 INFO L226 Difference]: Without dead ends: 1892 [2021-02-24 04:52:40,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:52:40,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2021-02-24 04:52:40,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1892. [2021-02-24 04:52:40,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1892 states. [2021-02-24 04:52:40,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 2238 transitions. [2021-02-24 04:52:40,861 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 2238 transitions. Word has length 341 [2021-02-24 04:52:40,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:52:40,862 INFO L480 AbstractCegarLoop]: Abstraction has 1892 states and 2238 transitions. [2021-02-24 04:52:40,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:52:40,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 2238 transitions. [2021-02-24 04:52:40,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-02-24 04:52:40,868 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:52:40,868 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] [2021-02-24 04:52:40,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 04:52:40,869 INFO L428 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:52:40,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:52:40,869 INFO L82 PathProgramCache]: Analyzing trace with hash 553637762, now seen corresponding path program 1 times [2021-02-24 04:52:40,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:52:40,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469301206] [2021-02-24 04:52:40,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:52:40,873 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:52:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:40,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:40,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:40,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:40,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:52:40,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:40,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,180 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:52:41,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:52:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:52:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:52:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:52:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:52:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:52:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:52:41,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-24 04:52:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-24 04:52:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:52:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:52:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-02-24 04:52:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-02-24 04:52:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-02-24 04:52:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:41,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:41,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:41,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:52:41,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469301206] [2021-02-24 04:52:41,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:52:41,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:52:41,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327385059] [2021-02-24 04:52:41,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:52:41,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:52:41,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:52:41,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:52:41,604 INFO L87 Difference]: Start difference. First operand 1892 states and 2238 transitions. Second operand 12 states. [2021-02-24 04:52:42,419 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:52:45,227 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-24 04:52:48,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:52:48,024 INFO L93 Difference]: Finished difference Result 3420 states and 4080 transitions. [2021-02-24 04:52:48,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-24 04:52:48,024 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 349 [2021-02-24 04:52:48,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:52:48,039 INFO L225 Difference]: With dead ends: 3420 [2021-02-24 04:52:48,039 INFO L226 Difference]: Without dead ends: 1974 [2021-02-24 04:52:48,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=351, Invalid=981, Unknown=0, NotChecked=0, Total=1332 [2021-02-24 04:52:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2021-02-24 04:52:48,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1892. [2021-02-24 04:52:48,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1892 states. [2021-02-24 04:52:48,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 2234 transitions. [2021-02-24 04:52:48,726 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 2234 transitions. Word has length 349 [2021-02-24 04:52:48,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:52:48,727 INFO L480 AbstractCegarLoop]: Abstraction has 1892 states and 2234 transitions. [2021-02-24 04:52:48,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:52:48,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 2234 transitions. [2021-02-24 04:52:48,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-02-24 04:52:48,732 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:52:48,732 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] [2021-02-24 04:52:48,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-24 04:52:48,732 INFO L428 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:52:48,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:52:48,733 INFO L82 PathProgramCache]: Analyzing trace with hash -2104728561, now seen corresponding path program 1 times [2021-02-24 04:52:48,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:52:48,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603115103] [2021-02-24 04:52:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:52:48,736 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:52:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:48,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:48,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:48,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:48,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:52:48,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:48,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:52:48,824 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-24 04:52:48,825 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-24 04:52:48,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:48,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,020 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:52:49,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:52:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:52:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:52:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:52:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:52:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:52:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:52:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:52:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:52:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:52:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-24 04:52:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-24 04:52:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-24 04:52:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:49,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:49,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:52:49,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603115103] [2021-02-24 04:52:49,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:52:49,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:52:49,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814941228] [2021-02-24 04:52:49,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:52:49,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:52:49,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:52:49,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:52:49,435 INFO L87 Difference]: Start difference. First operand 1892 states and 2234 transitions. Second operand 13 states. [2021-02-24 04:52:52,614 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:52:52,867 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:52:54,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:52:54,312 INFO L93 Difference]: Finished difference Result 3358 states and 4015 transitions. [2021-02-24 04:52:54,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 04:52:54,313 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 341 [2021-02-24 04:52:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:52:54,326 INFO L225 Difference]: With dead ends: 3358 [2021-02-24 04:52:54,326 INFO L226 Difference]: Without dead ends: 1912 [2021-02-24 04:52:54,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:52:54,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2021-02-24 04:52:54,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1912. [2021-02-24 04:52:54,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2021-02-24 04:52:54,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2250 transitions. [2021-02-24 04:52:54,841 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2250 transitions. Word has length 341 [2021-02-24 04:52:54,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:52:54,843 INFO L480 AbstractCegarLoop]: Abstraction has 1912 states and 2250 transitions. [2021-02-24 04:52:54,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:52:54,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2250 transitions. [2021-02-24 04:52:54,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-02-24 04:52:54,848 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:52:54,848 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] [2021-02-24 04:52:54,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 04:52:54,849 INFO L428 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:52:54,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:52:54,849 INFO L82 PathProgramCache]: Analyzing trace with hash -483678640, now seen corresponding path program 1 times [2021-02-24 04:52:54,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:52:54,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484877966] [2021-02-24 04:52:54,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:52:54,854 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:52:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:54,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:54,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:54,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:54,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:52:54,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:54,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:52:54,970 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-24 04:52:54,972 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-24 04:52:54,981 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-24 04:52:54,983 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-24 04:52:54,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:54,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,187 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:52:55,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:52:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:52:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:52:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:52:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:52:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:52:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:52:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:52:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:52:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:52:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:52:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-24 04:52:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-24 04:52:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-24 04:52:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-02-24 04:52:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:52:55,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:55,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:52:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-24 04:52:55,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484877966] [2021-02-24 04:52:55,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:52:55,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:52:55,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761811277] [2021-02-24 04:52:55,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:52:55,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:52:55,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:52:55,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:52:55,595 INFO L87 Difference]: Start difference. First operand 1912 states and 2250 transitions. Second operand 13 states. [2021-02-24 04:52:59,321 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:52:59,554 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:53:00,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:53:00,472 INFO L93 Difference]: Finished difference Result 3406 states and 4059 transitions. [2021-02-24 04:53:00,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 04:53:00,472 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 351 [2021-02-24 04:53:00,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:53:00,486 INFO L225 Difference]: With dead ends: 3406 [2021-02-24 04:53:00,486 INFO L226 Difference]: Without dead ends: 1940 [2021-02-24 04:53:00,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:53:00,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2021-02-24 04:53:00,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1940. [2021-02-24 04:53:00,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1940 states. [2021-02-24 04:53:00,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2274 transitions. [2021-02-24 04:53:00,971 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2274 transitions. Word has length 351 [2021-02-24 04:53:00,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:53:00,972 INFO L480 AbstractCegarLoop]: Abstraction has 1940 states and 2274 transitions. [2021-02-24 04:53:00,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:53:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2274 transitions. [2021-02-24 04:53:00,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-02-24 04:53:00,977 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:53:00,977 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] [2021-02-24 04:53:00,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-24 04:53:00,978 INFO L428 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:53:00,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:53:00,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1024980272, now seen corresponding path program 1 times [2021-02-24 04:53:00,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:53:00,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628685426] [2021-02-24 04:53:00,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:53:00,981 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:53:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:01,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:01,072 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-24 04:53:01,073 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-24 04:53:01,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,290 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:53:01,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:53:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:53:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:53:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:53:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:53:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:53:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:53:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:53:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:53:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:53:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:53:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:53:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-24 04:53:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-24 04:53:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-24 04:53:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-02-24 04:53:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-02-24 04:53:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:01,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:01,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:53:01,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628685426] [2021-02-24 04:53:01,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:53:01,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:53:01,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070233204] [2021-02-24 04:53:01,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:53:01,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:53:01,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:53:01,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:53:01,670 INFO L87 Difference]: Start difference. First operand 1940 states and 2274 transitions. Second operand 13 states. [2021-02-24 04:53:04,171 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-24 04:53:04,385 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-24 04:53:05,210 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:53:05,449 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:53:06,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:53:06,770 INFO L93 Difference]: Finished difference Result 3454 states and 4095 transitions. [2021-02-24 04:53:06,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 04:53:06,770 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 360 [2021-02-24 04:53:06,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:53:06,780 INFO L225 Difference]: With dead ends: 3454 [2021-02-24 04:53:06,780 INFO L226 Difference]: Without dead ends: 1960 [2021-02-24 04:53:06,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:53:06,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2021-02-24 04:53:07,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1960. [2021-02-24 04:53:07,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2021-02-24 04:53:07,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2290 transitions. [2021-02-24 04:53:07,484 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2290 transitions. Word has length 360 [2021-02-24 04:53:07,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:53:07,485 INFO L480 AbstractCegarLoop]: Abstraction has 1960 states and 2290 transitions. [2021-02-24 04:53:07,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:53:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2290 transitions. [2021-02-24 04:53:07,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-02-24 04:53:07,489 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:53:07,490 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] [2021-02-24 04:53:07,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-24 04:53:07,490 INFO L428 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:53:07,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:53:07,491 INFO L82 PathProgramCache]: Analyzing trace with hash -158957949, now seen corresponding path program 1 times [2021-02-24 04:53:07,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:53:07,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291087985] [2021-02-24 04:53:07,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:53:07,494 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:53:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:07,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:07,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:53:07,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:53:07,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:07,825 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:53:07,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:53:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:07,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:07,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:53:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:07,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:53:07,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:53:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:07,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:07,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:53:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:07,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:07,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:53:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:07,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:07,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:53:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:07,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:07,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:07,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:08,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:53:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:08,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:08,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:53:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:53:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:53:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:53:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:53:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-24 04:53:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:08,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:53:08,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:53:08,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:53:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-24 04:53:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:53:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:08,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 04:53:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-24 04:53:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:08,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:08,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:08,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:53:08,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291087985] [2021-02-24 04:53:08,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:53:08,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-24 04:53:08,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319181340] [2021-02-24 04:53:08,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-24 04:53:08,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:53:08,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-24 04:53:08,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-02-24 04:53:08,430 INFO L87 Difference]: Start difference. First operand 1960 states and 2290 transitions. Second operand 19 states. [2021-02-24 04:53:09,396 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-24 04:53:10,082 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:53:10,487 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-24 04:53:11,034 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2021-02-24 04:53:11,694 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:53:14,065 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:53:14,361 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:53:14,627 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:53:14,884 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:53:17,766 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:53:18,024 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:53:18,290 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:53:18,571 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:53:18,835 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:53:19,098 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:53:19,649 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:53:23,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:53:23,768 INFO L93 Difference]: Finished difference Result 4884 states and 5719 transitions. [2021-02-24 04:53:23,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-02-24 04:53:23,769 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 362 [2021-02-24 04:53:23,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:53:23,788 INFO L225 Difference]: With dead ends: 4884 [2021-02-24 04:53:23,788 INFO L226 Difference]: Without dead ends: 3350 [2021-02-24 04:53:23,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1258 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1009, Invalid=3821, Unknown=0, NotChecked=0, Total=4830 [2021-02-24 04:53:23,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2021-02-24 04:53:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 3122. [2021-02-24 04:53:24,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3122 states. [2021-02-24 04:53:24,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 3626 transitions. [2021-02-24 04:53:24,951 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 3626 transitions. Word has length 362 [2021-02-24 04:53:24,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:53:24,951 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 3626 transitions. [2021-02-24 04:53:24,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-24 04:53:24,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 3626 transitions. [2021-02-24 04:53:24,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-02-24 04:53:24,956 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:53:24,956 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] [2021-02-24 04:53:24,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-24 04:53:24,957 INFO L428 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:53:24,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:53:24,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1056560781, now seen corresponding path program 1 times [2021-02-24 04:53:24,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:53:24,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361957414] [2021-02-24 04:53:24,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:53:24,961 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:53:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:53:25,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:53:25,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:53:25,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:53:25,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,262 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:53:25,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:53:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:53:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:53:25,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:53:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:53:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:53:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:53:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:53:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:53:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:53:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:53:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:25,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:25,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:53:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:53:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:25,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:25,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-24 04:53:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-24 04:53:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-24 04:53:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-02-24 04:53:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-02-24 04:53:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:25,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:25,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:25,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-24 04:53:25,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361957414] [2021-02-24 04:53:25,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:53:25,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-02-24 04:53:25,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603503238] [2021-02-24 04:53:25,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-24 04:53:25,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:53:25,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-24 04:53:25,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-02-24 04:53:25,802 INFO L87 Difference]: Start difference. First operand 3122 states and 3626 transitions. Second operand 18 states. [2021-02-24 04:53:25,922 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:53:27,153 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:53:27,477 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:53:29,987 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:53:30,330 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2021-02-24 04:53:30,825 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:53:33,208 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-24 04:53:34,464 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:53:34,927 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:53:37,584 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:53:37,854 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-24 04:53:38,116 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-24 04:53:38,366 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-24 04:53:39,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:53:39,218 INFO L93 Difference]: Finished difference Result 6132 states and 7132 transitions. [2021-02-24 04:53:39,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-02-24 04:53:39,219 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 363 [2021-02-24 04:53:39,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:53:39,241 INFO L225 Difference]: With dead ends: 6132 [2021-02-24 04:53:39,241 INFO L226 Difference]: Without dead ends: 3946 [2021-02-24 04:53:39,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=904, Invalid=2756, Unknown=0, NotChecked=0, Total=3660 [2021-02-24 04:53:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2021-02-24 04:53:40,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3342. [2021-02-24 04:53:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3342 states. [2021-02-24 04:53:40,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 3862 transitions. [2021-02-24 04:53:40,425 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 3862 transitions. Word has length 363 [2021-02-24 04:53:40,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:53:40,426 INFO L480 AbstractCegarLoop]: Abstraction has 3342 states and 3862 transitions. [2021-02-24 04:53:40,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-02-24 04:53:40,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 3862 transitions. [2021-02-24 04:53:40,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2021-02-24 04:53:40,430 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:53:40,431 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] [2021-02-24 04:53:40,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-24 04:53:40,431 INFO L428 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:53:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:53:40,432 INFO L82 PathProgramCache]: Analyzing trace with hash 375308354, now seen corresponding path program 1 times [2021-02-24 04:53:40,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:53:40,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942708563] [2021-02-24 04:53:40,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:53:40,436 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:53:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:40,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:40,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:40,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:40,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:40,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:53:40,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:53:40,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:53:40,592 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-24 04:53:40,594 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-24 04:53:40,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:40,840 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:53:40,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:53:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:40,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:40,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:53:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:40,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:40,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:53:40,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:53:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:40,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:40,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:53:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:40,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:40,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:53:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:40,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:40,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:53:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:40,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:40,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:53:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:53:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:53:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:53:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:53:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:53:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-24 04:53:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:41,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:53:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-24 04:53:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:53:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 04:53:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-24 04:53:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:41,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:41,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:41,381 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-24 04:53:41,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942708563] [2021-02-24 04:53:41,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:53:41,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-24 04:53:41,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205536163] [2021-02-24 04:53:41,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-24 04:53:41,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:53:41,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-24 04:53:41,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-02-24 04:53:41,386 INFO L87 Difference]: Start difference. First operand 3342 states and 3862 transitions. Second operand 19 states. [2021-02-24 04:53:42,749 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:53:47,980 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:53:48,553 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:53:48,882 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-24 04:53:50,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:53:50,054 INFO L93 Difference]: Finished difference Result 3570 states and 4133 transitions. [2021-02-24 04:53:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-02-24 04:53:50,054 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 364 [2021-02-24 04:53:50,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:53:50,074 INFO L225 Difference]: With dead ends: 3570 [2021-02-24 04:53:50,075 INFO L226 Difference]: Without dead ends: 3568 [2021-02-24 04:53:50,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2021-02-24 04:53:50,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2021-02-24 04:53:51,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3370. [2021-02-24 04:53:51,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3370 states. [2021-02-24 04:53:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 3890 transitions. [2021-02-24 04:53:51,175 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 3890 transitions. Word has length 364 [2021-02-24 04:53:51,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:53:51,176 INFO L480 AbstractCegarLoop]: Abstraction has 3370 states and 3890 transitions. [2021-02-24 04:53:51,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-24 04:53:51,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 3890 transitions. [2021-02-24 04:53:51,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-02-24 04:53:51,180 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:53:51,181 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] [2021-02-24 04:53:51,181 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-24 04:53:51,181 INFO L428 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:53:51,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:53:51,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1636021951, now seen corresponding path program 1 times [2021-02-24 04:53:51,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:53:51,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615046686] [2021-02-24 04:53:51,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:53:51,185 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:53:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:53:51,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:53:51,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,511 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:53:51,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:53:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:53:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:53:51,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:53:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:53:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:53:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:53:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:53:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:53:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:51,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:51,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:53:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:51,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:51,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:53:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:53:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:53:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-24 04:53:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:51,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:53:51,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:53:51,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:53:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-24 04:53:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:53:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 04:53:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-24 04:53:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:51,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:53:51,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-24 04:53:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:53:51,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:53:51,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:53:52,062 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-24 04:53:52,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615046686] [2021-02-24 04:53:52,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:53:52,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-24 04:53:52,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364675261] [2021-02-24 04:53:52,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-24 04:53:52,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:53:52,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-24 04:53:52,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-02-24 04:53:52,065 INFO L87 Difference]: Start difference. First operand 3370 states and 3890 transitions. Second operand 19 states. [2021-02-24 04:53:52,200 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:53:53,158 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-24 04:53:53,314 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-02-24 04:53:53,978 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:53:54,378 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-24 04:53:55,921 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2021-02-24 04:53:56,558 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:53:57,069 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-24 04:53:58,397 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:54:01,328 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:54:01,909 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:54:02,170 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:54:02,446 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:54:02,747 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:54:02,993 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:54:03,297 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:54:07,076 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:54:10,331 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:54:10,636 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:54:10,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:54:10,977 INFO L93 Difference]: Finished difference Result 8108 states and 9433 transitions. [2021-02-24 04:54:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-24 04:54:10,978 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 372 [2021-02-24 04:54:10,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:54:11,009 INFO L225 Difference]: With dead ends: 8108 [2021-02-24 04:54:11,009 INFO L226 Difference]: Without dead ends: 5746 [2021-02-24 04:54:11,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1422 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1097, Invalid=4305, Unknown=0, NotChecked=0, Total=5402 [2021-02-24 04:54:11,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5746 states. [2021-02-24 04:54:12,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5746 to 3949. [2021-02-24 04:54:12,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3949 states. [2021-02-24 04:54:12,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 4586 transitions. [2021-02-24 04:54:12,318 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 4586 transitions. Word has length 372 [2021-02-24 04:54:12,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:54:12,318 INFO L480 AbstractCegarLoop]: Abstraction has 3949 states and 4586 transitions. [2021-02-24 04:54:12,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-24 04:54:12,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 4586 transitions. [2021-02-24 04:54:12,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-02-24 04:54:12,322 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:54:12,322 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] [2021-02-24 04:54:12,323 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-24 04:54:12,323 INFO L428 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:54:12,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:54:12,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1057181460, now seen corresponding path program 1 times [2021-02-24 04:54:12,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:54:12,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267238156] [2021-02-24 04:54:12,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:54:12,326 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:54:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,419 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-02-24 04:54:12,421 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size 20 [2021-02-24 04:54:12,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,662 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:54:12,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:54:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:54:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:54:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:54:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:54:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:54:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:54:12,797 WARN L141 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-02-24 04:54:12,798 WARN L147 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size 12 [2021-02-24 04:54:12,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:54:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:54:12,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:54:12,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-24 04:54:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:54:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 04:54:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:54:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:54:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:12,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:12,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:12,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-24 04:54:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:13,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:13,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:13,025 WARN L141 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-02-24 04:54:13,025 WARN L147 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size 17 [2021-02-24 04:54:13,053 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-02-24 04:54:13,054 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size 20 [2021-02-24 04:54:13,089 WARN L141 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-02-24 04:54:13,090 WARN L147 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size 40 [2021-02-24 04:54:13,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:13,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:54:13,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:54:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:13,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:13,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:13,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-24 04:54:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:13,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:13,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:13,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:54:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:13,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:13,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:13,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 04:54:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:13,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:13,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:13,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:13,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:54:13,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-24 04:54:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:13,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:13,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:13,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-02-24 04:54:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:13,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:13,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:54:13,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267238156] [2021-02-24 04:54:13,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:54:13,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-24 04:54:13,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417326486] [2021-02-24 04:54:13,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-24 04:54:13,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:54:13,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-24 04:54:13,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:54:13,380 INFO L87 Difference]: Start difference. First operand 3949 states and 4586 transitions. Second operand 20 states. [2021-02-24 04:54:13,508 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:54:15,206 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:54:16,189 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-24 04:54:16,615 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:54:18,614 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:54:18,929 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-24 04:54:19,115 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-24 04:54:20,610 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-24 04:54:20,969 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-24 04:54:21,525 WARN L202 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2021-02-24 04:54:22,085 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2021-02-24 04:54:22,399 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:54:28,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:54:28,903 INFO L93 Difference]: Finished difference Result 7552 states and 8906 transitions. [2021-02-24 04:54:28,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-24 04:54:28,904 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 372 [2021-02-24 04:54:28,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:54:28,927 INFO L225 Difference]: With dead ends: 7552 [2021-02-24 04:54:28,928 INFO L226 Difference]: Without dead ends: 4398 [2021-02-24 04:54:28,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=663, Invalid=2093, Unknown=0, NotChecked=0, Total=2756 [2021-02-24 04:54:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4398 states. [2021-02-24 04:54:30,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4398 to 3841. [2021-02-24 04:54:30,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3841 states. [2021-02-24 04:54:30,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 4440 transitions. [2021-02-24 04:54:30,228 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 4440 transitions. Word has length 372 [2021-02-24 04:54:30,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:54:30,229 INFO L480 AbstractCegarLoop]: Abstraction has 3841 states and 4440 transitions. [2021-02-24 04:54:30,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-24 04:54:30,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 4440 transitions. [2021-02-24 04:54:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-02-24 04:54:30,233 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:54:30,234 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] [2021-02-24 04:54:30,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-24 04:54:30,234 INFO L428 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:54:30,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:54:30,234 INFO L82 PathProgramCache]: Analyzing trace with hash 880146998, now seen corresponding path program 1 times [2021-02-24 04:54:30,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:54:30,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715598812] [2021-02-24 04:54:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:54:30,239 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:54:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:54:30,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,551 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:54:30,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:54:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:54:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:54:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:54:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:54:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:54:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:54:30,696 WARN L141 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-02-24 04:54:30,697 WARN L147 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size 7 [2021-02-24 04:54:30,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:54:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-24 04:54:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:54:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-24 04:54:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:54:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:54:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-02-24 04:54:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:54:30,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 04:54:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:54:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-24 04:54:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-24 04:54:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-24 04:54:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:30,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 04:54:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:30,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:30,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:31,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:54:31,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715598812] [2021-02-24 04:54:31,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:54:31,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 04:54:31,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69654518] [2021-02-24 04:54:31,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 04:54:31,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:54:31,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 04:54:31,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:54:31,057 INFO L87 Difference]: Start difference. First operand 3841 states and 4440 transitions. Second operand 14 states. [2021-02-24 04:54:31,246 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:54:32,022 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:54:34,020 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:54:35,630 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-24 04:54:44,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:54:44,584 INFO L93 Difference]: Finished difference Result 10378 states and 12179 transitions. [2021-02-24 04:54:44,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-24 04:54:44,585 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 379 [2021-02-24 04:54:44,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:54:44,624 INFO L225 Difference]: With dead ends: 10378 [2021-02-24 04:54:44,625 INFO L226 Difference]: Without dead ends: 7361 [2021-02-24 04:54:44,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=503, Invalid=1753, Unknown=0, NotChecked=0, Total=2256 [2021-02-24 04:54:44,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2021-02-24 04:54:46,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 6491. [2021-02-24 04:54:46,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6491 states. [2021-02-24 04:54:46,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6491 states to 6491 states and 7575 transitions. [2021-02-24 04:54:46,986 INFO L78 Accepts]: Start accepts. Automaton has 6491 states and 7575 transitions. Word has length 379 [2021-02-24 04:54:46,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:54:46,987 INFO L480 AbstractCegarLoop]: Abstraction has 6491 states and 7575 transitions. [2021-02-24 04:54:46,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 04:54:46,987 INFO L276 IsEmpty]: Start isEmpty. Operand 6491 states and 7575 transitions. [2021-02-24 04:54:46,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-02-24 04:54:46,992 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:54:46,992 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] [2021-02-24 04:54:46,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-24 04:54:46,993 INFO L428 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:54:46,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:54:46,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1287855307, now seen corresponding path program 1 times [2021-02-24 04:54:46,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:54:46,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127592890] [2021-02-24 04:54:46,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:54:46,997 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:54:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:54:47,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,319 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:54:47,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:54:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:54:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:54:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:54:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:54:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:54:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:54:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-24 04:54:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:54:47,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:54:47,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:54:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:54:47,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:54:47,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-24 04:54:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:54:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:54:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-02-24 04:54:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:54:47,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:54:47,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:54:47,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 04:54:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:54:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-24 04:54:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-24 04:54:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-24 04:54:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 04:54:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:54:47,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:54:47,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:54:47,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:54:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:54:48,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127592890] [2021-02-24 04:54:48,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:54:48,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-24 04:54:48,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705800833] [2021-02-24 04:54:48,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-24 04:54:48,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:54:48,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-24 04:54:48,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-02-24 04:54:48,072 INFO L87 Difference]: Start difference. First operand 6491 states and 7575 transitions. Second operand 19 states. [2021-02-24 04:54:48,209 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:54:49,026 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-24 04:54:49,943 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-24 04:54:51,623 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-24 04:54:52,695 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:54:53,144 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-24 04:54:53,730 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-24 04:54:54,105 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-24 04:54:54,265 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-24 04:54:56,722 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-24 04:54:57,066 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-24 04:54:57,366 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-02-24 04:54:57,652 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-24 04:54:57,979 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-24 04:54:58,274 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-24 04:54:58,553 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-24 04:54:58,828 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-24 04:54:59,862 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-02-24 04:55:03,532 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-24 04:55:07,741 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:55:08,036 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-24 04:55:10,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:55:10,667 INFO L93 Difference]: Finished difference Result 12804 states and 15141 transitions. [2021-02-24 04:55:10,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-24 04:55:10,668 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 381 [2021-02-24 04:55:10,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:55:10,704 INFO L225 Difference]: With dead ends: 12804 [2021-02-24 04:55:10,704 INFO L226 Difference]: Without dead ends: 7354 [2021-02-24 04:55:10,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=926, Invalid=3496, Unknown=0, NotChecked=0, Total=4422 [2021-02-24 04:55:10,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7354 states. [2021-02-24 04:55:13,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7354 to 6411. [2021-02-24 04:55:13,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6411 states. [2021-02-24 04:55:13,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6411 states to 6411 states and 7469 transitions. [2021-02-24 04:55:13,435 INFO L78 Accepts]: Start accepts. Automaton has 6411 states and 7469 transitions. Word has length 381 [2021-02-24 04:55:13,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:55:13,436 INFO L480 AbstractCegarLoop]: Abstraction has 6411 states and 7469 transitions. [2021-02-24 04:55:13,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-24 04:55:13,436 INFO L276 IsEmpty]: Start isEmpty. Operand 6411 states and 7469 transitions. [2021-02-24 04:55:13,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-02-24 04:55:13,440 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:55:13,441 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] [2021-02-24 04:55:13,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-24 04:55:13,441 INFO L428 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:55:13,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:55:13,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1690610776, now seen corresponding path program 1 times [2021-02-24 04:55:13,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:55:13,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643355319] [2021-02-24 04:55:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:55:13,446 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:55:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:13,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:13,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:55:13,560 WARN L141 QuantifierPusher]: treesize reduction 30, result has 23.1 percent of original size [2021-02-24 04:55:13,561 WARN L147 QuantifierPusher]: treesize reduction 30, result has 23.1 percent of original size 9 [2021-02-24 04:55:13,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:13,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:13,812 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:55:13,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:55:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:13,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:13,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:55:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:13,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:13,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:55:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:13,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:13,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:55:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:13,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:13,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:13,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:55:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:13,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:13,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:55:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:13,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:13,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:13,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:55:14,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:55:14,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:55:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-24 04:55:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:55:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-24 04:55:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:55:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:55:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-02-24 04:55:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 04:55:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:55:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-24 04:55:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-24 04:55:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-24 04:55:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 04:55:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:14,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:14,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:14,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:55:14,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643355319] [2021-02-24 04:55:14,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:55:14,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-24 04:55:14,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581675518] [2021-02-24 04:55:14,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-24 04:55:14,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:55:14,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-24 04:55:14,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-02-24 04:55:14,450 INFO L87 Difference]: Start difference. First operand 6411 states and 7469 transitions. Second operand 19 states. [2021-02-24 04:55:14,578 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:55:16,464 WARN L202 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2021-02-24 04:55:16,762 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2021-02-24 04:55:17,354 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-24 04:55:24,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:55:24,528 INFO L93 Difference]: Finished difference Result 12243 states and 14330 transitions. [2021-02-24 04:55:24,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-02-24 04:55:24,531 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 389 [2021-02-24 04:55:24,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:55:24,565 INFO L225 Difference]: With dead ends: 12243 [2021-02-24 04:55:24,565 INFO L226 Difference]: Without dead ends: 6451 [2021-02-24 04:55:24,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=485, Invalid=1585, Unknown=0, NotChecked=0, Total=2070 [2021-02-24 04:55:24,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6451 states. [2021-02-24 04:55:27,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6451 to 6119. [2021-02-24 04:55:27,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6119 states. [2021-02-24 04:55:27,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6119 states to 6119 states and 7132 transitions. [2021-02-24 04:55:27,603 INFO L78 Accepts]: Start accepts. Automaton has 6119 states and 7132 transitions. Word has length 389 [2021-02-24 04:55:27,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:55:27,604 INFO L480 AbstractCegarLoop]: Abstraction has 6119 states and 7132 transitions. [2021-02-24 04:55:27,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-24 04:55:27,604 INFO L276 IsEmpty]: Start isEmpty. Operand 6119 states and 7132 transitions. [2021-02-24 04:55:27,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-02-24 04:55:27,610 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:55:27,611 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] [2021-02-24 04:55:27,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-24 04:55:27,612 INFO L428 AbstractCegarLoop]: === Iteration 23 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:55:27,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:55:27,612 INFO L82 PathProgramCache]: Analyzing trace with hash -484686856, now seen corresponding path program 1 times [2021-02-24 04:55:27,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:55:27,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587106787] [2021-02-24 04:55:27,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:55:27,617 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:55:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:27,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:27,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:27,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:27,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:55:27,733 WARN L141 QuantifierPusher]: treesize reduction 26, result has 33.3 percent of original size [2021-02-24 04:55:27,734 WARN L147 QuantifierPusher]: treesize reduction 26, result has 33.3 percent of original size 13 [2021-02-24 04:55:27,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:27,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:27,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:27,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,024 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:55:28,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:55:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:55:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:55:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:55:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:28,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:28,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:55:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:55:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:55:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-24 04:55:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:55:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-24 04:55:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:28,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:28,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:55:28,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:55:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:55:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-02-24 04:55:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 04:55:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:55:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-24 04:55:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-24 04:55:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-24 04:55:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 04:55:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:28,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:28,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:55:28,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587106787] [2021-02-24 04:55:28,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:55:28,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-24 04:55:28,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268017316] [2021-02-24 04:55:28,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-24 04:55:28,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:55:28,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-24 04:55:28,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-02-24 04:55:28,632 INFO L87 Difference]: Start difference. First operand 6119 states and 7132 transitions. Second operand 19 states. [2021-02-24 04:55:28,772 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:55:30,727 WARN L202 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2021-02-24 04:55:31,017 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2021-02-24 04:55:31,551 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-24 04:55:34,008 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:55:34,190 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-24 04:55:35,284 WARN L202 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 156 [2021-02-24 04:55:36,626 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2021-02-24 04:55:38,274 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:55:38,415 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:55:38,631 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-24 04:55:41,775 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-24 04:55:42,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:55:42,154 INFO L93 Difference]: Finished difference Result 11614 states and 13583 transitions. [2021-02-24 04:55:42,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-24 04:55:42,155 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 389 [2021-02-24 04:55:42,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:55:42,184 INFO L225 Difference]: With dead ends: 11614 [2021-02-24 04:55:42,185 INFO L226 Difference]: Without dead ends: 6150 [2021-02-24 04:55:42,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=702, Invalid=2378, Unknown=0, NotChecked=0, Total=3080 [2021-02-24 04:55:42,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2021-02-24 04:55:45,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 6114. [2021-02-24 04:55:45,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6114 states. [2021-02-24 04:55:45,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6114 states to 6114 states and 7122 transitions. [2021-02-24 04:55:45,230 INFO L78 Accepts]: Start accepts. Automaton has 6114 states and 7122 transitions. Word has length 389 [2021-02-24 04:55:45,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:55:45,231 INFO L480 AbstractCegarLoop]: Abstraction has 6114 states and 7122 transitions. [2021-02-24 04:55:45,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-24 04:55:45,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6114 states and 7122 transitions. [2021-02-24 04:55:45,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-02-24 04:55:45,236 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:55:45,237 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] [2021-02-24 04:55:45,237 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-24 04:55:45,237 INFO L428 AbstractCegarLoop]: === Iteration 24 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:55:45,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:55:45,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1739823215, now seen corresponding path program 1 times [2021-02-24 04:55:45,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:55:45,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720412049] [2021-02-24 04:55:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:55:45,242 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:55:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:55:45,332 WARN L141 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size [2021-02-24 04:55:45,333 WARN L147 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size 4 [2021-02-24 04:55:45,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:45,592 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:55:45,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:55:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:45,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:55:45,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:55:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:45,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:55:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:45,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:55:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:45,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:55:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:45,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:55:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:45,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:55:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:45,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-24 04:55:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:45,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:55:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:45,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-24 04:55:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:45,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:45,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:55:45,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:55:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:45,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:45,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:46,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-24 04:55:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:46,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:46,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:46,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-02-24 04:55:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:46,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:46,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:46,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 04:55:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:46,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:46,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:46,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:55:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:46,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:46,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:46,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-24 04:55:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:46,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:46,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:46,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-24 04:55:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:46,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:46,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:46,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-24 04:55:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:46,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:46,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:46,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 04:55:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:55:46,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:55:46,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:55:46,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:55:46,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720412049] [2021-02-24 04:55:46,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:55:46,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-24 04:55:46,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546887397] [2021-02-24 04:55:46,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 04:55:46,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:55:46,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 04:55:46,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:55:46,403 INFO L87 Difference]: Start difference. First operand 6114 states and 7122 transitions. Second operand 16 states. [2021-02-24 04:55:46,679 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:55:47,408 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:55:48,312 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:55:50,514 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:55:50,658 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:55:50,831 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-24 04:55:51,180 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-24 04:55:51,318 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-24 04:55:52,782 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-24 04:55:54,262 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:55:57,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:55:57,339 INFO L93 Difference]: Finished difference Result 11638 states and 13618 transitions. [2021-02-24 04:55:57,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-24 04:55:57,340 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 389 [2021-02-24 04:55:57,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:55:57,371 INFO L225 Difference]: With dead ends: 11638 [2021-02-24 04:55:57,372 INFO L226 Difference]: Without dead ends: 6134 [2021-02-24 04:55:57,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=628, Invalid=1724, Unknown=0, NotChecked=0, Total=2352 [2021-02-24 04:55:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2021-02-24 04:56:00,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 6110. [2021-02-24 04:56:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6110 states. [2021-02-24 04:56:00,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6110 states to 6110 states and 7108 transitions. [2021-02-24 04:56:00,156 INFO L78 Accepts]: Start accepts. Automaton has 6110 states and 7108 transitions. Word has length 389 [2021-02-24 04:56:00,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:56:00,156 INFO L480 AbstractCegarLoop]: Abstraction has 6110 states and 7108 transitions. [2021-02-24 04:56:00,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 04:56:00,157 INFO L276 IsEmpty]: Start isEmpty. Operand 6110 states and 7108 transitions. [2021-02-24 04:56:00,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-02-24 04:56:00,161 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:56:00,161 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] [2021-02-24 04:56:00,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-02-24 04:56:00,162 INFO L428 AbstractCegarLoop]: === Iteration 25 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:56:00,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:56:00,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1909142807, now seen corresponding path program 1 times [2021-02-24 04:56:00,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:56:00,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612567086] [2021-02-24 04:56:00,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:56:00,166 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:56:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:56:00,235 WARN L141 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size [2021-02-24 04:56:00,236 WARN L147 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size 4 [2021-02-24 04:56:00,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,468 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:56:00,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:56:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:56:00,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-24 04:56:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 04:56:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 04:56:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-24 04:56:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 04:56:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:56:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-24 04:56:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-24 04:56:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-24 04:56:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:56:00,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:56:00,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:56:00,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 04:56:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 04:56:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-02-24 04:56:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 04:56:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:56:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-24 04:56:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-24 04:56:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-24 04:56:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 04:56:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:56:00,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:56:00,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:56:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:56:00,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612567086] [2021-02-24 04:56:00,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:56:00,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-24 04:56:00,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776896485] [2021-02-24 04:56:00,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 04:56:00,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:56:00,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 04:56:00,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:56:00,966 INFO L87 Difference]: Start difference. First operand 6110 states and 7108 transitions. Second operand 16 states. [2021-02-24 04:56:01,099 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:56:01,254 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:56:02,165 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:56:03,097 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-24 04:56:03,283 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-24 04:56:05,086 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-24 04:56:05,226 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-24 04:56:05,365 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:56:05,546 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-24 04:56:05,724 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-24 04:56:05,882 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-24 04:56:08,571 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-24 04:56:08,714 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-24 04:56:11,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:56:11,874 INFO L93 Difference]: Finished difference Result 11563 states and 13516 transitions. [2021-02-24 04:56:11,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-24 04:56:11,875 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 390 [2021-02-24 04:56:11,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:56:11,904 INFO L225 Difference]: With dead ends: 11563 [2021-02-24 04:56:11,905 INFO L226 Difference]: Without dead ends: 6123 [2021-02-24 04:56:11,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=664, Invalid=1988, Unknown=0, NotChecked=0, Total=2652 [2021-02-24 04:56:11,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6123 states. [2021-02-24 04:56:14,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6123 to 6105. [2021-02-24 04:56:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6105 states. [2021-02-24 04:56:14,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6105 states to 6105 states and 7098 transitions. [2021-02-24 04:56:14,561 INFO L78 Accepts]: Start accepts. Automaton has 6105 states and 7098 transitions. Word has length 390 [2021-02-24 04:56:14,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:56:14,561 INFO L480 AbstractCegarLoop]: Abstraction has 6105 states and 7098 transitions. [2021-02-24 04:56:14,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 04:56:14,561 INFO L276 IsEmpty]: Start isEmpty. Operand 6105 states and 7098 transitions. [2021-02-24 04:56:14,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-02-24 04:56:14,565 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:56:14,565 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] [2021-02-24 04:56:14,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-02-24 04:56:14,566 INFO L428 AbstractCegarLoop]: === Iteration 26 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:56:14,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:56:14,566 INFO L82 PathProgramCache]: Analyzing trace with hash 971096905, now seen corresponding path program 1 times [2021-02-24 04:56:14,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:56:14,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809306621] [2021-02-24 04:56:14,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:56:14,570 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:56:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:56:14,611 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:56:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:56:14,673 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:56:15,202 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:56:15,203 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:56:15,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-02-24 04:56:15,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:56:15 BoogieIcfgContainer [2021-02-24 04:56:15,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:56:15,300 INFO L168 Benchmark]: Toolchain (without parser) took 291311.48 ms. Allocated memory was 160.4 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 136.4 MB in the beginning and 899.7 MB in the end (delta: -763.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. [2021-02-24 04:56:15,301 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 160.4 MB. Free memory was 136.6 MB in the beginning and 136.5 MB in the end (delta: 79.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:56:15,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.35 ms. Allocated memory is still 160.4 MB. Free memory was 135.4 MB in the beginning and 117.9 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-02-24 04:56:15,301 INFO L168 Benchmark]: Boogie Preprocessor took 116.95 ms. Allocated memory is still 160.4 MB. Free memory was 117.9 MB in the beginning and 115.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:56:15,301 INFO L168 Benchmark]: RCFGBuilder took 1398.70 ms. Allocated memory is still 160.4 MB. Free memory was 115.0 MB in the beginning and 121.2 MB in the end (delta: -6.2 MB). Peak memory consumption was 37.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:56:15,301 INFO L168 Benchmark]: TraceAbstraction took 289075.52 ms. Allocated memory was 160.4 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 120.7 MB in the beginning and 899.7 MB in the end (delta: -779.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. [2021-02-24 04:56:15,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 160.4 MB. Free memory was 136.6 MB in the beginning and 136.5 MB in the end (delta: 79.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 693.35 ms. Allocated memory is still 160.4 MB. Free memory was 135.4 MB in the beginning and 117.9 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 116.95 ms. Allocated memory is still 160.4 MB. Free memory was 117.9 MB in the beginning and 115.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1398.70 ms. Allocated memory is still 160.4 MB. Free memory was 115.0 MB in the beginning and 121.2 MB in the end (delta: -6.2 MB). Peak memory consumption was 37.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 289075.52 ms. Allocated memory was 160.4 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 120.7 MB in the beginning and 899.7 MB in the end (delta: -779.1 MB). Peak memory consumption was 1.4 GB. 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: 288.9s, OverallIterations: 26, TraceHistogramMax: 2, AutomataDifference: 236.8s, 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, 98.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1883 GetRequests, 814 SyntacticMatches, 18 SemanticMatches, 1051 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10999 ImplicationChecksByTransitivity, 87.4s 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: 29.0s 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...