/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.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:26:23,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:26:23,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:26:23,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 02:26:23,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 02:26:23,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 02:26:23,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 02:26:23,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 02:26:23,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 02:26:23,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 02:26:23,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 02:26:23,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 02:26:23,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:26:23,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:26:23,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:26:23,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:26:23,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:26:23,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:26:23,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:26:23,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:26:23,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:26:23,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:26:23,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:26:23,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:26:23,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:26:23,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 02:26:23,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 02:26:23,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 02:26:23,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 02:26:23,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 02:26:23,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 02:26:23,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 02:26:23,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 02:26:23,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:26:23,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:26:23,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:26:23,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:26:23,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:26:23,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:26:23,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:26:23,741 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:26:23,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:26:23,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:26:23,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:26:23,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:26:23,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:26:23,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:26:23,743 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:26:23,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:26:23,743 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:26:23,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:26:23,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:26:23,744 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:26:23,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:26:23,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:26:23,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:26:23,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:26:23,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:26:23,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:26:23,746 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:26:23,746 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:26:24,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:26:24,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:26:24,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:26:24,191 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:26:24,191 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:26:24,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2021-02-22 02:26:24,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445e4f60a/23b7b2a9182746feb1b193dd2fdb99f4/FLAG28ddc8248 [2021-02-22 02:26:25,070 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:26:25,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2021-02-22 02:26:25,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445e4f60a/23b7b2a9182746feb1b193dd2fdb99f4/FLAG28ddc8248 [2021-02-22 02:26:25,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445e4f60a/23b7b2a9182746feb1b193dd2fdb99f4 [2021-02-22 02:26:25,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:26:25,341 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:26:25,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:26:25,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:26:25,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:26:25,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:26:25" (1/1) ... [2021-02-22 02:26:25,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b85af5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25, skipping insertion in model container [2021-02-22 02:26:25,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:26:25" (1/1) ... [2021-02-22 02:26:25,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:26:25,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:26:25,730 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c[14682,14695] [2021-02-22 02:26:25,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:26:25,763 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:26:25,912 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.UNBOUNDED.pals.c[14682,14695] [2021-02-22 02:26:25,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:26:25,942 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:26:25,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25 WrapperNode [2021-02-22 02:26:25,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:26:25,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:26:25,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:26:25,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:26:25,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25" (1/1) ... [2021-02-22 02:26:25,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25" (1/1) ... [2021-02-22 02:26:25,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25" (1/1) ... [2021-02-22 02:26:25,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25" (1/1) ... [2021-02-22 02:26:26,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25" (1/1) ... [2021-02-22 02:26:26,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25" (1/1) ... [2021-02-22 02:26:26,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25" (1/1) ... [2021-02-22 02:26:26,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:26:26,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:26:26,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:26:26,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:26:26,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:26:26,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:26:26,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:26:26,179 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:26:26,179 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-22 02:26:26,180 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2021-02-22 02:26:26,180 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2021-02-22 02:26:26,180 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2021-02-22 02:26:26,180 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2021-02-22 02:26:26,180 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2021-02-22 02:26:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2021-02-22 02:26:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2021-02-22 02:26:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2021-02-22 02:26:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2021-02-22 02:26:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2021-02-22 02:26:26,182 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2021-02-22 02:26:26,182 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2021-02-22 02:26:26,182 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2021-02-22 02:26:26,182 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2021-02-22 02:26:26,182 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2021-02-22 02:26:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:26:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-02-22 02:26:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:26:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:26:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:26:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:26:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-02-22 02:26:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-02-22 02:26:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure read [2021-02-22 02:26:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure write [2021-02-22 02:26:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-02-22 02:26:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-22 02:26:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2021-02-22 02:26:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2021-02-22 02:26:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2021-02-22 02:26:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2021-02-22 02:26:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2021-02-22 02:26:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2021-02-22 02:26:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2021-02-22 02:26:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2021-02-22 02:26:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure init [2021-02-22 02:26:26,187 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2021-02-22 02:26:26,187 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2021-02-22 02:26:26,187 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2021-02-22 02:26:26,187 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2021-02-22 02:26:26,187 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2021-02-22 02:26:26,187 INFO L130 BoogieDeclarations]: Found specification of procedure check [2021-02-22 02:26:26,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:26:26,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:26:26,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:26:26,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:26:26,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:26:26,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:26:26,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:26:27,210 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:26:27,211 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:26:27,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:26:27 BoogieIcfgContainer [2021-02-22 02:26:27,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:26:27,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:26:27,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:26:27,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:26:27,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:26:25" (1/3) ... [2021-02-22 02:26:27,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1bb76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:26:27, skipping insertion in model container [2021-02-22 02:26:27,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:26:25" (2/3) ... [2021-02-22 02:26:27,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1bb76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:26:27, skipping insertion in model container [2021-02-22 02:26:27,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:26:27" (3/3) ... [2021-02-22 02:26:27,224 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2021-02-22 02:26:27,233 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:26:27,240 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:26:27,261 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:26:27,288 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:26:27,289 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:26:27,289 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:26:27,289 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:26:27,289 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:26:27,290 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:26:27,290 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:26:27,290 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:26:27,321 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states. [2021-02-22 02:26:27,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-02-22 02:26:27,346 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:27,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:27,348 INFO L428 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:27,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:27,355 INFO L82 PathProgramCache]: Analyzing trace with hash -864763431, now seen corresponding path program 1 times [2021-02-22 02:26:27,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:27,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [58692619] [2021-02-22 02:26:27,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:27,449 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:27,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:27,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:27,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:27,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:27,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:27,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:27,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:27,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:27,983 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:27,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:28,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:28,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:28,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:28,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:26:28,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 02:26:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:28,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:28,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:26:28,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-22 02:26:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:28,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:28,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:28,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:28,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-22 02:26:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:28,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:28,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:28,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:28,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:28,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-02-22 02:26:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:28,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:28,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:28,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:28,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:28,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:28,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [58692619] [2021-02-22 02:26:28,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:28,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 02:26:28,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988228678] [2021-02-22 02:26:28,504 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 02:26:28,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:28,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 02:26:28,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:26:28,523 INFO L87 Difference]: Start difference. First operand 579 states. Second operand 14 states. [2021-02-22 02:26:29,316 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:26:29,700 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:26:29,947 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:26:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:33,796 INFO L93 Difference]: Finished difference Result 1024 states and 1275 transitions. [2021-02-22 02:26:33,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-22 02:26:33,805 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 232 [2021-02-22 02:26:33,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:33,824 INFO L225 Difference]: With dead ends: 1024 [2021-02-22 02:26:33,825 INFO L226 Difference]: Without dead ends: 554 [2021-02-22 02:26:33,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-02-22 02:26:33,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-02-22 02:26:34,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2021-02-22 02:26:34,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2021-02-22 02:26:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 647 transitions. [2021-02-22 02:26:34,096 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 647 transitions. Word has length 232 [2021-02-22 02:26:34,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:34,097 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 647 transitions. [2021-02-22 02:26:34,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 02:26:34,098 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 647 transitions. [2021-02-22 02:26:34,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-22 02:26:34,104 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:34,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:34,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:26:34,105 INFO L428 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:34,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:34,106 INFO L82 PathProgramCache]: Analyzing trace with hash 2079614762, now seen corresponding path program 1 times [2021-02-22 02:26:34,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:34,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473260286] [2021-02-22 02:26:34,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:34,112 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:34,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:34,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:34,377 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-22 02:26:34,381 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-22 02:26:34,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,618 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:34,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:34,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:34,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:34,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:26:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:34,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:34,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:26:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:34,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:34,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:34,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:34,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:34,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:34,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:34,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473260286] [2021-02-22 02:26:34,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:34,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 02:26:34,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054839488] [2021-02-22 02:26:34,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 02:26:34,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:34,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 02:26:34,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-02-22 02:26:34,937 INFO L87 Difference]: Start difference. First operand 554 states and 647 transitions. Second operand 11 states. [2021-02-22 02:26:37,220 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:26:37,480 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:26:39,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:39,111 INFO L93 Difference]: Finished difference Result 980 states and 1171 transitions. [2021-02-22 02:26:39,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-22 02:26:39,112 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 243 [2021-02-22 02:26:39,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:39,119 INFO L225 Difference]: With dead ends: 980 [2021-02-22 02:26:39,119 INFO L226 Difference]: Without dead ends: 559 [2021-02-22 02:26:39,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2021-02-22 02:26:39,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-02-22 02:26:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2021-02-22 02:26:39,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2021-02-22 02:26:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 651 transitions. [2021-02-22 02:26:39,313 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 651 transitions. Word has length 243 [2021-02-22 02:26:39,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:39,314 INFO L480 AbstractCegarLoop]: Abstraction has 559 states and 651 transitions. [2021-02-22 02:26:39,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 02:26:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 651 transitions. [2021-02-22 02:26:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-02-22 02:26:39,320 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:39,321 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] [2021-02-22 02:26:39,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:26:39,321 INFO L428 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:39,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:39,322 INFO L82 PathProgramCache]: Analyzing trace with hash 984212862, now seen corresponding path program 1 times [2021-02-22 02:26:39,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:39,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658149127] [2021-02-22 02:26:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:39,327 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:39,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:26:39,444 WARN L141 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size [2021-02-22 02:26:39,445 WARN L147 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size 4 [2021-02-22 02:26:39,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:39,685 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:39,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:39,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:39,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:26:39,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:39,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:39,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:39,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:39,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:26:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:39,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:39,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:39,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:39,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:26:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:39,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:39,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:39,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:39,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:39,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:39,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:39,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:39,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:39,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:26:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:40,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:40,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:40,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:40,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:40,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:40,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:40,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:26:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:40,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:40,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:40,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-22 02:26:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:40,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:40,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:40,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-02-22 02:26:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:40,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:40,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-22 02:26:40,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658149127] [2021-02-22 02:26:40,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:40,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 02:26:40,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147997866] [2021-02-22 02:26:40,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 02:26:40,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:40,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 02:26:40,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-22 02:26:40,293 INFO L87 Difference]: Start difference. First operand 559 states and 651 transitions. Second operand 16 states. [2021-02-22 02:26:41,225 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:26:43,365 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:26:43,495 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:26:44,402 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:26:46,660 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:26:47,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:47,325 INFO L93 Difference]: Finished difference Result 1185 states and 1394 transitions. [2021-02-22 02:26:47,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-22 02:26:47,326 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 316 [2021-02-22 02:26:47,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:47,335 INFO L225 Difference]: With dead ends: 1185 [2021-02-22 02:26:47,335 INFO L226 Difference]: Without dead ends: 759 [2021-02-22 02:26:47,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=578, Invalid=1774, Unknown=0, NotChecked=0, Total=2352 [2021-02-22 02:26:47,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2021-02-22 02:26:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 751. [2021-02-22 02:26:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2021-02-22 02:26:47,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 868 transitions. [2021-02-22 02:26:47,593 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 868 transitions. Word has length 316 [2021-02-22 02:26:47,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:47,595 INFO L480 AbstractCegarLoop]: Abstraction has 751 states and 868 transitions. [2021-02-22 02:26:47,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 02:26:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 868 transitions. [2021-02-22 02:26:47,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-02-22 02:26:47,601 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:47,601 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:47,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:26:47,602 INFO L428 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:47,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:47,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1062969812, now seen corresponding path program 1 times [2021-02-22 02:26:47,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:47,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890467636] [2021-02-22 02:26:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:47,608 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:47,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:47,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:26:47,706 WARN L141 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size [2021-02-22 02:26:47,707 WARN L147 QuantifierPusher]: treesize reduction 19, result has 17.4 percent of original size 4 [2021-02-22 02:26:47,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:47,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:47,890 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:47,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:47,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:47,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:47,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:47,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:26:47,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:47,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:47,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:47,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:47,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:47,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:47,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:26:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:47,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:47,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:47,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:47,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:47,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:48,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:26:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:48,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:48,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:48,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:48,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:48,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:48,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:48,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:48,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:48,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:48,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:48,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:48,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:26:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:48,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:48,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:48,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:48,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:48,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:48,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:48,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:26:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:48,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:48,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:48,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-22 02:26:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:48,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:48,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:48,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-02-22 02:26:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:48,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:48,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:48,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890467636] [2021-02-22 02:26:48,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:48,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 02:26:48,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329336983] [2021-02-22 02:26:48,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 02:26:48,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:48,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 02:26:48,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-22 02:26:48,431 INFO L87 Difference]: Start difference. First operand 751 states and 868 transitions. Second operand 16 states. [2021-02-22 02:26:48,688 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:26:49,413 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:26:51,599 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:26:51,722 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:26:51,846 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:26:51,995 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:26:52,774 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:26:55,064 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:26:55,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:55,725 INFO L93 Difference]: Finished difference Result 1193 states and 1404 transitions. [2021-02-22 02:26:55,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-22 02:26:55,726 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 317 [2021-02-22 02:26:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:55,733 INFO L225 Difference]: With dead ends: 1193 [2021-02-22 02:26:55,733 INFO L226 Difference]: Without dead ends: 764 [2021-02-22 02:26:55,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=606, Invalid=2046, Unknown=0, NotChecked=0, Total=2652 [2021-02-22 02:26:55,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2021-02-22 02:26:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 751. [2021-02-22 02:26:55,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2021-02-22 02:26:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 868 transitions. [2021-02-22 02:26:55,917 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 868 transitions. Word has length 317 [2021-02-22 02:26:55,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:55,918 INFO L480 AbstractCegarLoop]: Abstraction has 751 states and 868 transitions. [2021-02-22 02:26:55,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 02:26:55,918 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 868 transitions. [2021-02-22 02:26:55,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-02-22 02:26:55,925 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:55,925 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:55,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:26:55,926 INFO L428 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:55,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:55,927 INFO L82 PathProgramCache]: Analyzing trace with hash -275502976, now seen corresponding path program 1 times [2021-02-22 02:26:55,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:55,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270198314] [2021-02-22 02:26:55,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:55,931 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:26:56,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,211 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:26:56,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:26:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:26:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:26:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:26:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:26:56,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:26:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:26:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:26:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:26:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-02-22 02:26:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:56,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:56,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:56,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [270198314] [2021-02-22 02:26:56,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:56,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:26:56,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732753130] [2021-02-22 02:26:56,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:26:56,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:56,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:26:56,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:26:56,664 INFO L87 Difference]: Start difference. First operand 751 states and 868 transitions. Second operand 12 states. [2021-02-22 02:26:56,791 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:26:58,662 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:02,896 INFO L93 Difference]: Finished difference Result 1637 states and 1942 transitions. [2021-02-22 02:27:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-22 02:27:02,896 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 319 [2021-02-22 02:27:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:02,905 INFO L225 Difference]: With dead ends: 1637 [2021-02-22 02:27:02,906 INFO L226 Difference]: Without dead ends: 1208 [2021-02-22 02:27:02,909 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 [2021-02-22 02:27:02,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2021-02-22 02:27:03,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1169. [2021-02-22 02:27:03,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1169 states. [2021-02-22 02:27:03,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1377 transitions. [2021-02-22 02:27:03,216 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1377 transitions. Word has length 319 [2021-02-22 02:27:03,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:03,217 INFO L480 AbstractCegarLoop]: Abstraction has 1169 states and 1377 transitions. [2021-02-22 02:27:03,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:27:03,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1377 transitions. [2021-02-22 02:27:03,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-02-22 02:27:03,220 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:03,221 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:03,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 02:27:03,221 INFO L428 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:03,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:03,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1734554722, now seen corresponding path program 1 times [2021-02-22 02:27:03,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:03,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056097751] [2021-02-22 02:27:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:03,226 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:27:03,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,558 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:03,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:27:03,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:03,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:03,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:03,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056097751] [2021-02-22 02:27:03,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:03,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:27:03,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699716083] [2021-02-22 02:27:03,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:27:03,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:03,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:27:03,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:27:03,978 INFO L87 Difference]: Start difference. First operand 1169 states and 1377 transitions. Second operand 12 states. [2021-02-22 02:27:06,182 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:10,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:10,122 INFO L93 Difference]: Finished difference Result 2583 states and 3121 transitions. [2021-02-22 02:27:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-22 02:27:10,127 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 320 [2021-02-22 02:27:10,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:10,143 INFO L225 Difference]: With dead ends: 2583 [2021-02-22 02:27:10,144 INFO L226 Difference]: Without dead ends: 1826 [2021-02-22 02:27:10,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=348, Invalid=842, Unknown=0, NotChecked=0, Total=1190 [2021-02-22 02:27:10,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2021-02-22 02:27:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1806. [2021-02-22 02:27:10,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1806 states. [2021-02-22 02:27:10,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2167 transitions. [2021-02-22 02:27:10,687 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2167 transitions. Word has length 320 [2021-02-22 02:27:10,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:10,688 INFO L480 AbstractCegarLoop]: Abstraction has 1806 states and 2167 transitions. [2021-02-22 02:27:10,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:27:10,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2167 transitions. [2021-02-22 02:27:10,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-02-22 02:27:10,692 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:10,692 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:10,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:27:10,693 INFO L428 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:10,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:10,693 INFO L82 PathProgramCache]: Analyzing trace with hash 430640322, now seen corresponding path program 1 times [2021-02-22 02:27:10,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:10,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015019104] [2021-02-22 02:27:10,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:10,697 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:10,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:10,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:10,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:10,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:10,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:10,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:27:10,803 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-22 02:27:10,805 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-22 02:27:10,812 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-22 02:27:10,813 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-22 02:27:10,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:10,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,005 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:11,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:11,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:11,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:11,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:11,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015019104] [2021-02-22 02:27:11,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:11,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:11,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342884141] [2021-02-22 02:27:11,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:11,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:11,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:11,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:11,386 INFO L87 Difference]: Start difference. First operand 1806 states and 2167 transitions. Second operand 13 states. [2021-02-22 02:27:14,141 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:27:14,387 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:15,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:15,951 INFO L93 Difference]: Finished difference Result 3198 states and 3897 transitions. [2021-02-22 02:27:15,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:15,951 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 320 [2021-02-22 02:27:15,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:15,966 INFO L225 Difference]: With dead ends: 3198 [2021-02-22 02:27:15,967 INFO L226 Difference]: Without dead ends: 1830 [2021-02-22 02:27:15,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:27:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2021-02-22 02:27:16,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1830. [2021-02-22 02:27:16,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1830 states. [2021-02-22 02:27:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2187 transitions. [2021-02-22 02:27:16,632 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2187 transitions. Word has length 320 [2021-02-22 02:27:16,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:16,633 INFO L480 AbstractCegarLoop]: Abstraction has 1830 states and 2187 transitions. [2021-02-22 02:27:16,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:16,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2187 transitions. [2021-02-22 02:27:16,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-02-22 02:27:16,639 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:16,640 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:16,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 02:27:16,640 INFO L428 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:16,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:16,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1410840753, now seen corresponding path program 1 times [2021-02-22 02:27:16,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:16,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014261242] [2021-02-22 02:27:16,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:16,648 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:16,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:16,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:16,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:16,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:16,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:16,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:27:16,788 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-22 02:27:16,792 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-22 02:27:16,800 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-22 02:27:16,801 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-22 02:27:16,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:16,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,035 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:17,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:27:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:17,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:17,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:17,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014261242] [2021-02-22 02:27:17,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:17,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:17,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403478468] [2021-02-22 02:27:17,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:17,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:17,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:17,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:17,409 INFO L87 Difference]: Start difference. First operand 1830 states and 2187 transitions. Second operand 13 states. [2021-02-22 02:27:20,726 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:27:20,950 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:22,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:22,415 INFO L93 Difference]: Finished difference Result 3246 states and 3949 transitions. [2021-02-22 02:27:22,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:22,416 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 331 [2021-02-22 02:27:22,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:22,428 INFO L225 Difference]: With dead ends: 3246 [2021-02-22 02:27:22,428 INFO L226 Difference]: Without dead ends: 1854 [2021-02-22 02:27:22,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:27:22,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2021-02-22 02:27:22,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1854. [2021-02-22 02:27:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2021-02-22 02:27:22,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2207 transitions. [2021-02-22 02:27:22,940 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2207 transitions. Word has length 331 [2021-02-22 02:27:22,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:22,941 INFO L480 AbstractCegarLoop]: Abstraction has 1854 states and 2207 transitions. [2021-02-22 02:27:22,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:22,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2207 transitions. [2021-02-22 02:27:22,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-02-22 02:27:22,946 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:22,947 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:22,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 02:27:22,947 INFO L428 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:22,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:22,948 INFO L82 PathProgramCache]: Analyzing trace with hash -589804699, now seen corresponding path program 1 times [2021-02-22 02:27:22,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:22,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681455884] [2021-02-22 02:27:22,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:22,951 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:27:23,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,233 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:23,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:27:23,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-22 02:27:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-02-22 02:27:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-02-22 02:27:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-02-22 02:27:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:23,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:23,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:23,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:23,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681455884] [2021-02-22 02:27:23,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:23,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:27:23,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156518403] [2021-02-22 02:27:23,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:27:23,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:23,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:27:23,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:27:23,627 INFO L87 Difference]: Start difference. First operand 1854 states and 2207 transitions. Second operand 12 states. [2021-02-22 02:27:23,741 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:27:24,489 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:27:30,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:30,237 INFO L93 Difference]: Finished difference Result 3298 states and 3968 transitions. [2021-02-22 02:27:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-22 02:27:30,238 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 349 [2021-02-22 02:27:30,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:30,250 INFO L225 Difference]: With dead ends: 3298 [2021-02-22 02:27:30,250 INFO L226 Difference]: Without dead ends: 1882 [2021-02-22 02:27:30,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=352, Invalid=980, Unknown=0, NotChecked=0, Total=1332 [2021-02-22 02:27:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2021-02-22 02:27:30,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1862. [2021-02-22 02:27:30,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2021-02-22 02:27:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2212 transitions. [2021-02-22 02:27:30,842 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2212 transitions. Word has length 349 [2021-02-22 02:27:30,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:30,842 INFO L480 AbstractCegarLoop]: Abstraction has 1862 states and 2212 transitions. [2021-02-22 02:27:30,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:27:30,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2212 transitions. [2021-02-22 02:27:30,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-02-22 02:27:30,847 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:30,847 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:30,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 02:27:30,848 INFO L428 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:30,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:30,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1369882040, now seen corresponding path program 1 times [2021-02-22 02:27:30,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:30,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554432917] [2021-02-22 02:27:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:30,852 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:30,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:30,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:30,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:30,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:30,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:30,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:30,973 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-22 02:27:30,974 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-22 02:27:30,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:30,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,162 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:31,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:27:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-22 02:27:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:31,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:31,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:31,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:31,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554432917] [2021-02-22 02:27:31,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:31,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:31,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244773023] [2021-02-22 02:27:31,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:31,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:31,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:31,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:31,680 INFO L87 Difference]: Start difference. First operand 1862 states and 2212 transitions. Second operand 13 states. [2021-02-22 02:27:35,102 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:27:35,331 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:36,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:36,599 INFO L93 Difference]: Finished difference Result 3298 states and 3973 transitions. [2021-02-22 02:27:36,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:36,600 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 341 [2021-02-22 02:27:36,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:36,612 INFO L225 Difference]: With dead ends: 3298 [2021-02-22 02:27:36,613 INFO L226 Difference]: Without dead ends: 1882 [2021-02-22 02:27:36,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:27:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2021-02-22 02:27:37,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1882. [2021-02-22 02:27:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1882 states. [2021-02-22 02:27:37,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2228 transitions. [2021-02-22 02:27:37,074 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2228 transitions. Word has length 341 [2021-02-22 02:27:37,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:37,075 INFO L480 AbstractCegarLoop]: Abstraction has 1882 states and 2228 transitions. [2021-02-22 02:27:37,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:37,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2228 transitions. [2021-02-22 02:27:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-02-22 02:27:37,079 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:37,080 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:37,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-22 02:27:37,080 INFO L428 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:37,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:37,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1843376041, now seen corresponding path program 1 times [2021-02-22 02:27:37,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:37,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254135363] [2021-02-22 02:27:37,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:37,084 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:37,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:27:37,179 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-22 02:27:37,180 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-22 02:27:37,190 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-22 02:27:37,191 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-22 02:27:37,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,372 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:37,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:27:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-22 02:27:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:37,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:37,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:37,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254135363] [2021-02-22 02:27:37,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:37,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:37,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292165599] [2021-02-22 02:27:37,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:37,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:37,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:37,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:37,796 INFO L87 Difference]: Start difference. First operand 1882 states and 2228 transitions. Second operand 13 states. [2021-02-22 02:27:41,237 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:27:41,463 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:42,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:42,742 INFO L93 Difference]: Finished difference Result 3342 states and 4021 transitions. [2021-02-22 02:27:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:42,743 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 341 [2021-02-22 02:27:42,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:42,755 INFO L225 Difference]: With dead ends: 3342 [2021-02-22 02:27:42,755 INFO L226 Difference]: Without dead ends: 1906 [2021-02-22 02:27:42,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:27:42,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2021-02-22 02:27:43,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1906. [2021-02-22 02:27:43,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1906 states. [2021-02-22 02:27:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2248 transitions. [2021-02-22 02:27:43,200 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2248 transitions. Word has length 341 [2021-02-22 02:27:43,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:43,201 INFO L480 AbstractCegarLoop]: Abstraction has 1906 states and 2248 transitions. [2021-02-22 02:27:43,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:43,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2248 transitions. [2021-02-22 02:27:43,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-02-22 02:27:43,206 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:43,206 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:43,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-22 02:27:43,207 INFO L428 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:43,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:43,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1905962713, now seen corresponding path program 1 times [2021-02-22 02:27:43,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:43,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659372587] [2021-02-22 02:27:43,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:43,211 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:43,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:27:43,299 WARN L141 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-02-22 02:27:43,301 WARN L147 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size 36 [2021-02-22 02:27:43,308 WARN L141 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-02-22 02:27:43,309 WARN L147 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size 38 [2021-02-22 02:27:43,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,499 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:43,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:27:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-22 02:27:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-02-22 02:27:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:43,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:43,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:43,921 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-22 02:27:43,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659372587] [2021-02-22 02:27:43,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:43,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:43,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213504025] [2021-02-22 02:27:43,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:43,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:43,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:43,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:43,923 INFO L87 Difference]: Start difference. First operand 1906 states and 2248 transitions. Second operand 13 states. [2021-02-22 02:27:44,044 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:27:47,409 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:27:47,639 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:27:48,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:48,499 INFO L93 Difference]: Finished difference Result 3394 states and 4057 transitions. [2021-02-22 02:27:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:27:48,500 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 351 [2021-02-22 02:27:48,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:48,511 INFO L225 Difference]: With dead ends: 3394 [2021-02-22 02:27:48,511 INFO L226 Difference]: Without dead ends: 1934 [2021-02-22 02:27:48,516 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 [2021-02-22 02:27:48,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2021-02-22 02:27:48,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1934. [2021-02-22 02:27:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2021-02-22 02:27:48,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 2272 transitions. [2021-02-22 02:27:48,936 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 2272 transitions. Word has length 351 [2021-02-22 02:27:48,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:48,936 INFO L480 AbstractCegarLoop]: Abstraction has 1934 states and 2272 transitions. [2021-02-22 02:27:48,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:27:48,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 2272 transitions. [2021-02-22 02:27:48,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-02-22 02:27:48,941 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:48,941 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] [2021-02-22 02:27:48,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-22 02:27:48,941 INFO L428 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:48,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:48,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1672166159, now seen corresponding path program 1 times [2021-02-22 02:27:48,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:48,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524329050] [2021-02-22 02:27:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:48,946 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:27:49,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,212 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:49,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:27:49,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:27:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-22 02:27:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-02-22 02:27:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-02-22 02:27:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-02-22 02:27:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-02-22 02:27:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-02-22 02:27:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:49,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:49,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:49,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524329050] [2021-02-22 02:27:49,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:49,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:27:49,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384790646] [2021-02-22 02:27:49,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:27:49,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:49,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:27:49,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:27:49,650 INFO L87 Difference]: Start difference. First operand 1934 states and 2272 transitions. Second operand 12 states. [2021-02-22 02:27:50,432 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:27:52,894 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:27:55,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:27:55,738 INFO L93 Difference]: Finished difference Result 3498 states and 4142 transitions. [2021-02-22 02:27:55,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-22 02:27:55,738 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 368 [2021-02-22 02:27:55,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:27:55,748 INFO L225 Difference]: With dead ends: 3498 [2021-02-22 02:27:55,749 INFO L226 Difference]: Without dead ends: 2010 [2021-02-22 02:27:55,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=351, Invalid=981, Unknown=0, NotChecked=0, Total=1332 [2021-02-22 02:27:55,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2021-02-22 02:27:56,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 1934. [2021-02-22 02:27:56,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2021-02-22 02:27:56,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 2268 transitions. [2021-02-22 02:27:56,170 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 2268 transitions. Word has length 368 [2021-02-22 02:27:56,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:27:56,171 INFO L480 AbstractCegarLoop]: Abstraction has 1934 states and 2268 transitions. [2021-02-22 02:27:56,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:27:56,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 2268 transitions. [2021-02-22 02:27:56,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-02-22 02:27:56,175 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:27:56,176 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:27:56,176 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-22 02:27:56,176 INFO L428 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:27:56,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:27:56,177 INFO L82 PathProgramCache]: Analyzing trace with hash -370034620, now seen corresponding path program 1 times [2021-02-22 02:27:56,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:27:56,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387788235] [2021-02-22 02:27:56,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:27:56,181 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:27:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:56,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:27:56,266 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-22 02:27:56,269 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-22 02:27:56,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,452 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:27:56,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:27:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:27:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:27:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:27:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:27:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:27:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:27:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:27:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:27:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:27:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:27:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:27:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:27:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-22 02:27:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-02-22 02:27:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-02-22 02:27:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:27:56,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:27:56,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:27:56,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:27:56,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387788235] [2021-02-22 02:27:56,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:27:56,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:27:56,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584645004] [2021-02-22 02:27:56,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:27:56,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:27:56,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:27:56,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:27:56,876 INFO L87 Difference]: Start difference. First operand 1934 states and 2268 transitions. Second operand 13 states. [2021-02-22 02:28:00,021 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:28:00,246 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:28:01,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:28:01,471 INFO L93 Difference]: Finished difference Result 3442 states and 4083 transitions. [2021-02-22 02:28:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:28:01,471 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 360 [2021-02-22 02:28:01,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:28:01,485 INFO L225 Difference]: With dead ends: 3442 [2021-02-22 02:28:01,486 INFO L226 Difference]: Without dead ends: 1954 [2021-02-22 02:28:01,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-02-22 02:28:01,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2021-02-22 02:28:02,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1954. [2021-02-22 02:28:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2021-02-22 02:28:02,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2284 transitions. [2021-02-22 02:28:02,135 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2284 transitions. Word has length 360 [2021-02-22 02:28:02,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:28:02,135 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 2284 transitions. [2021-02-22 02:28:02,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:28:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2284 transitions. [2021-02-22 02:28:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-02-22 02:28:02,140 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:28:02,141 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:28:02,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-22 02:28:02,141 INFO L428 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:28:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:28:02,142 INFO L82 PathProgramCache]: Analyzing trace with hash 2012696154, now seen corresponding path program 1 times [2021-02-22 02:28:02,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:28:02,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679790758] [2021-02-22 02:28:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:28:02,146 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:28:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:28:02,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:02,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,460 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:28:02,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:28:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:28:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:02,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:28:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:28:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:28:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:28:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:02,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:02,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:02,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:02,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:28:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:28:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:28:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-22 02:28:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:02,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:02,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:28:02,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 02:28:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-22 02:28:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:02,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:28:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:02,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-22 02:28:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:02,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:02,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:03,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:28:03,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679790758] [2021-02-22 02:28:03,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:28:03,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:28:03,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439033799] [2021-02-22 02:28:03,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:28:03,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:28:03,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:28:03,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:28:03,014 INFO L87 Difference]: Start difference. First operand 1954 states and 2284 transitions. Second operand 19 states. [2021-02-22 02:28:03,140 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:28:03,960 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:28:04,587 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:05,452 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2021-02-22 02:28:06,052 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:08,359 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:08,645 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:08,903 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:28:09,155 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:11,918 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:28:12,165 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:28:12,422 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:12,657 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:28:12,908 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:28:13,165 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:13,652 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:28:17,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:28:17,565 INFO L93 Difference]: Finished difference Result 4860 states and 5695 transitions. [2021-02-22 02:28:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-02-22 02:28:17,565 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 362 [2021-02-22 02:28:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:28:17,584 INFO L225 Difference]: With dead ends: 4860 [2021-02-22 02:28:17,584 INFO L226 Difference]: Without dead ends: 3332 [2021-02-22 02:28:17,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1258 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1009, Invalid=3821, Unknown=0, NotChecked=0, Total=4830 [2021-02-22 02:28:17,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2021-02-22 02:28:18,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 3116. [2021-02-22 02:28:18,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3116 states. [2021-02-22 02:28:18,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 3620 transitions. [2021-02-22 02:28:18,463 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 3620 transitions. Word has length 362 [2021-02-22 02:28:18,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:28:18,464 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 3620 transitions. [2021-02-22 02:28:18,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:28:18,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 3620 transitions. [2021-02-22 02:28:18,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-02-22 02:28:18,467 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:28:18,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:28:18,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-22 02:28:18,468 INFO L428 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:28:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:28:18,468 INFO L82 PathProgramCache]: Analyzing trace with hash -338868202, now seen corresponding path program 1 times [2021-02-22 02:28:18,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:28:18,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034579444] [2021-02-22 02:28:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:28:18,472 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:28:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:18,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:18,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:28:18,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:28:18,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:28:18,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:28:18,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:18,827 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:28:18,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:28:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:18,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:18,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:28:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:18,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:18,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:28:18,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:28:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:18,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:18,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:28:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:18,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:18,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:28:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:18,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:18,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:28:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:18,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:18,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:18,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:18,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:19,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:28:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:19,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:19,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:19,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:19,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:28:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:19,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:19,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:19,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:28:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:19,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:19,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:19,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:19,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:19,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-02-22 02:28:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:19,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:19,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-22 02:28:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:19,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:19,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-02-22 02:28:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:19,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:19,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-02-22 02:28:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:19,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:19,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-02-22 02:28:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:19,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:19,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:19,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-22 02:28:19,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034579444] [2021-02-22 02:28:19,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:28:19,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-02-22 02:28:19,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437561392] [2021-02-22 02:28:19,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-22 02:28:19,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:28:19,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-22 02:28:19,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-02-22 02:28:19,366 INFO L87 Difference]: Start difference. First operand 3116 states and 3620 transitions. Second operand 18 states. [2021-02-22 02:28:20,587 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:20,842 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:23,593 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2021-02-22 02:28:24,059 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:25,322 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-02-22 02:28:27,480 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:28:27,919 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:28:30,391 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:28:30,643 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:28:30,896 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:28:31,136 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:28:31,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:28:31,956 INFO L93 Difference]: Finished difference Result 6114 states and 7114 transitions. [2021-02-22 02:28:31,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-02-22 02:28:31,956 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 363 [2021-02-22 02:28:31,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:28:31,977 INFO L225 Difference]: With dead ends: 6114 [2021-02-22 02:28:31,978 INFO L226 Difference]: Without dead ends: 3934 [2021-02-22 02:28:31,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=904, Invalid=2756, Unknown=0, NotChecked=0, Total=3660 [2021-02-22 02:28:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2021-02-22 02:28:33,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3336. [2021-02-22 02:28:33,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3336 states. [2021-02-22 02:28:33,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 3856 transitions. [2021-02-22 02:28:33,105 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 3856 transitions. Word has length 363 [2021-02-22 02:28:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:28:33,106 INFO L480 AbstractCegarLoop]: Abstraction has 3336 states and 3856 transitions. [2021-02-22 02:28:33,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-02-22 02:28:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 3856 transitions. [2021-02-22 02:28:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2021-02-22 02:28:33,110 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:28:33,111 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:28:33,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-22 02:28:33,111 INFO L428 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:28:33,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:28:33,111 INFO L82 PathProgramCache]: Analyzing trace with hash 263385785, now seen corresponding path program 1 times [2021-02-22 02:28:33,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:28:33,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197907457] [2021-02-22 02:28:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:28:33,115 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:28:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:33,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:33,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:28:33,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:28:33,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:33,272 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-22 02:28:33,273 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-22 02:28:33,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,543 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:28:33,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:28:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:28:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:33,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:28:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:28:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:28:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:28:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:28:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:28:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:28:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-22 02:28:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:33,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 02:28:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-22 02:28:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:28:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:33,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-22 02:28:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:33,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:33,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:34,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-22 02:28:34,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197907457] [2021-02-22 02:28:34,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:28:34,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:28:34,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922989794] [2021-02-22 02:28:34,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:28:34,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:28:34,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:28:34,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:28:34,046 INFO L87 Difference]: Start difference. First operand 3336 states and 3856 transitions. Second operand 19 states. [2021-02-22 02:28:34,324 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-02-22 02:28:35,212 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:39,847 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:28:40,349 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:28:40,654 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:28:41,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:28:41,819 INFO L93 Difference]: Finished difference Result 3558 states and 4121 transitions. [2021-02-22 02:28:41,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-02-22 02:28:41,819 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 364 [2021-02-22 02:28:41,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:28:41,837 INFO L225 Difference]: With dead ends: 3558 [2021-02-22 02:28:41,837 INFO L226 Difference]: Without dead ends: 3556 [2021-02-22 02:28:41,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2021-02-22 02:28:41,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2021-02-22 02:28:42,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 3364. [2021-02-22 02:28:42,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3364 states. [2021-02-22 02:28:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 3884 transitions. [2021-02-22 02:28:42,751 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 3884 transitions. Word has length 364 [2021-02-22 02:28:42,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:28:42,752 INFO L480 AbstractCegarLoop]: Abstraction has 3364 states and 3884 transitions. [2021-02-22 02:28:42,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:28:42,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 3884 transitions. [2021-02-22 02:28:42,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-02-22 02:28:42,756 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:28:42,757 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:28:42,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-22 02:28:42,757 INFO L428 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:28:42,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:28:42,758 INFO L82 PathProgramCache]: Analyzing trace with hash 930839563, now seen corresponding path program 1 times [2021-02-22 02:28:42,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:28:42,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127989261] [2021-02-22 02:28:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:28:42,761 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:28:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:42,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:42,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:42,847 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-02-22 02:28:42,847 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size 20 [2021-02-22 02:28:42,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:42,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,081 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:28:43,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:28:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:28:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:28:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:28:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:28:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:28:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:43,210 WARN L141 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-02-22 02:28:43,211 WARN L147 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size 12 [2021-02-22 02:28:43,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:43,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:43,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:28:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:28:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:28:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-22 02:28:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,428 WARN L141 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-02-22 02:28:43,428 WARN L147 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size 17 [2021-02-22 02:28:43,456 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-02-22 02:28:43,456 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size 20 [2021-02-22 02:28:43,489 WARN L141 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-02-22 02:28:43,491 WARN L147 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size 40 [2021-02-22 02:28:43,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:28:43,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 02:28:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-22 02:28:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:28:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:43,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-22 02:28:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-02-22 02:28:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:43,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:43,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:43,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:28:43,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127989261] [2021-02-22 02:28:43,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:28:43,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-22 02:28:43,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23442196] [2021-02-22 02:28:43,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-22 02:28:43,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:28:43,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-22 02:28:43,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-02-22 02:28:43,912 INFO L87 Difference]: Start difference. First operand 3364 states and 3884 transitions. Second operand 20 states. [2021-02-22 02:28:45,596 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:28:46,467 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-22 02:28:46,869 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:28:47,328 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-02-22 02:28:48,728 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:28:50,515 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:28:50,856 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:28:51,418 WARN L202 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2021-02-22 02:28:51,931 WARN L202 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2021-02-22 02:28:52,208 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:28:57,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:28:57,780 INFO L93 Difference]: Finished difference Result 6092 states and 7146 transitions. [2021-02-22 02:28:57,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-22 02:28:57,781 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 372 [2021-02-22 02:28:57,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:28:57,801 INFO L225 Difference]: With dead ends: 6092 [2021-02-22 02:28:57,801 INFO L226 Difference]: Without dead ends: 3722 [2021-02-22 02:28:57,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=663, Invalid=2093, Unknown=0, NotChecked=0, Total=2756 [2021-02-22 02:28:57,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states. [2021-02-22 02:28:58,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 3260. [2021-02-22 02:28:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3260 states. [2021-02-22 02:28:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 3742 transitions. [2021-02-22 02:28:59,007 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 3742 transitions. Word has length 372 [2021-02-22 02:28:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:28:59,008 INFO L480 AbstractCegarLoop]: Abstraction has 3260 states and 3742 transitions. [2021-02-22 02:28:59,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-22 02:28:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 3742 transitions. [2021-02-22 02:28:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-02-22 02:28:59,012 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:28:59,013 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:28:59,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-22 02:28:59,013 INFO L428 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:28:59,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:28:59,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1762363848, now seen corresponding path program 1 times [2021-02-22 02:28:59,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:28:59,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561262123] [2021-02-22 02:28:59,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:28:59,017 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:28:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:28:59,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:59,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,374 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:28:59,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:28:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:28:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:59,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:28:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:28:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:28:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:28:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:28:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:59,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:59,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:28:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:59,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:59,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-22 02:28:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:28:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-02-22 02:28:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:59,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:28:59,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:28:59,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:28:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 02:28:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-22 02:28:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:28:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-22 02:28:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:28:59,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-22 02:28:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:28:59,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:28:59,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:28:59,943 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-22 02:28:59,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561262123] [2021-02-22 02:28:59,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:28:59,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:28:59,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888789851] [2021-02-22 02:28:59,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:28:59,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:28:59,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:28:59,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:28:59,945 INFO L87 Difference]: Start difference. First operand 3260 states and 3742 transitions. Second operand 19 states. [2021-02-22 02:29:00,889 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:29:01,534 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:29:03,289 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2021-02-22 02:29:03,908 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:29:05,717 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:29:08,517 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:29:09,021 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:29:09,279 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:29:09,591 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:29:09,878 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:29:10,124 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:29:10,404 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:29:14,119 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:29:16,431 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:29:16,706 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:29:17,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:29:17,693 INFO L93 Difference]: Finished difference Result 7916 states and 9185 transitions. [2021-02-22 02:29:17,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-22 02:29:17,694 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 372 [2021-02-22 02:29:17,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:29:17,735 INFO L225 Difference]: With dead ends: 7916 [2021-02-22 02:29:17,736 INFO L226 Difference]: Without dead ends: 5620 [2021-02-22 02:29:17,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1422 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1097, Invalid=4305, Unknown=0, NotChecked=0, Total=5402 [2021-02-22 02:29:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2021-02-22 02:29:19,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 3835. [2021-02-22 02:29:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3835 states. [2021-02-22 02:29:19,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3835 states to 3835 states and 4434 transitions. [2021-02-22 02:29:19,080 INFO L78 Accepts]: Start accepts. Automaton has 3835 states and 4434 transitions. Word has length 372 [2021-02-22 02:29:19,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:29:19,081 INFO L480 AbstractCegarLoop]: Abstraction has 3835 states and 4434 transitions. [2021-02-22 02:29:19,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:29:19,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3835 states and 4434 transitions. [2021-02-22 02:29:19,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-02-22 02:29:19,085 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:29:19,085 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:29:19,085 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-22 02:29:19,086 INFO L428 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:29:19,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:29:19,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1514731012, now seen corresponding path program 1 times [2021-02-22 02:29:19,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:29:19,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706375254] [2021-02-22 02:29:19,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:29:19,089 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:29:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:19,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,368 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:29:19,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:29:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:29:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:29:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:29:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:29:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:29:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:29:19,498 WARN L141 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-02-22 02:29:19,499 WARN L147 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size 7 [2021-02-22 02:29:19,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:29:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-22 02:29:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:29:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:29:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-02-22 02:29:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-22 02:29:19,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:29:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:29:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:29:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:29:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:29:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:29:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:19,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:19,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:19,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:29:19,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706375254] [2021-02-22 02:29:19,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:29:19,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 02:29:19,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599581670] [2021-02-22 02:29:19,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 02:29:19,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:29:19,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 02:29:19,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:29:19,901 INFO L87 Difference]: Start difference. First operand 3835 states and 4434 transitions. Second operand 14 states. [2021-02-22 02:29:20,018 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:29:20,699 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:29:22,565 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:29:32,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:29:32,392 INFO L93 Difference]: Finished difference Result 10354 states and 12155 transitions. [2021-02-22 02:29:32,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-22 02:29:32,392 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 379 [2021-02-22 02:29:32,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:29:32,425 INFO L225 Difference]: With dead ends: 10354 [2021-02-22 02:29:32,426 INFO L226 Difference]: Without dead ends: 7343 [2021-02-22 02:29:32,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=503, Invalid=1753, Unknown=0, NotChecked=0, Total=2256 [2021-02-22 02:29:32,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7343 states. [2021-02-22 02:29:34,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7343 to 6479. [2021-02-22 02:29:34,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6479 states. [2021-02-22 02:29:34,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6479 states to 6479 states and 7563 transitions. [2021-02-22 02:29:34,658 INFO L78 Accepts]: Start accepts. Automaton has 6479 states and 7563 transitions. Word has length 379 [2021-02-22 02:29:34,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:29:34,659 INFO L480 AbstractCegarLoop]: Abstraction has 6479 states and 7563 transitions. [2021-02-22 02:29:34,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 02:29:34,659 INFO L276 IsEmpty]: Start isEmpty. Operand 6479 states and 7563 transitions. [2021-02-22 02:29:34,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-02-22 02:29:34,664 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:29:34,664 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:29:34,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-22 02:29:34,664 INFO L428 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:29:34,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:29:34,665 INFO L82 PathProgramCache]: Analyzing trace with hash -2099818639, now seen corresponding path program 1 times [2021-02-22 02:29:34,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:29:34,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31996430] [2021-02-22 02:29:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:29:34,669 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:29:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:29:34,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,978 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:29:34,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:29:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:29:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:34,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:34,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:34,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:29:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:29:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:29:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:29:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:29:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:29:35,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:29:35,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:35,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:35,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-02-22 02:29:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:29:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:29:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-02-22 02:29:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:35,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:29:35,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:29:35,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:29:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:29:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:29:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:29:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:29:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:29:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:35,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:35,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:35,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:35,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:29:35,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31996430] [2021-02-22 02:29:35,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:29:35,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:29:35,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119181268] [2021-02-22 02:29:35,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:29:35,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:29:35,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:29:35,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:29:35,591 INFO L87 Difference]: Start difference. First operand 6479 states and 7563 transitions. Second operand 19 states. [2021-02-22 02:29:36,450 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-22 02:29:38,826 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:29:39,901 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:29:40,348 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-22 02:29:41,008 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-22 02:29:41,387 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:29:41,551 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:29:43,784 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-22 02:29:44,094 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-22 02:29:44,371 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-02-22 02:29:44,647 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-22 02:29:44,950 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:29:45,229 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:29:45,493 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-22 02:29:45,752 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:29:53,748 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:29:54,032 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-02-22 02:29:56,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:29:56,431 INFO L93 Difference]: Finished difference Result 12777 states and 15114 transitions. [2021-02-22 02:29:56,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-22 02:29:56,431 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 381 [2021-02-22 02:29:56,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:29:56,463 INFO L225 Difference]: With dead ends: 12777 [2021-02-22 02:29:56,463 INFO L226 Difference]: Without dead ends: 7339 [2021-02-22 02:29:56,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=926, Invalid=3496, Unknown=0, NotChecked=0, Total=4422 [2021-02-22 02:29:56,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7339 states. [2021-02-22 02:29:59,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7339 to 6399. [2021-02-22 02:29:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6399 states. [2021-02-22 02:29:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6399 states to 6399 states and 7457 transitions. [2021-02-22 02:29:59,037 INFO L78 Accepts]: Start accepts. Automaton has 6399 states and 7457 transitions. Word has length 381 [2021-02-22 02:29:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:29:59,038 INFO L480 AbstractCegarLoop]: Abstraction has 6399 states and 7457 transitions. [2021-02-22 02:29:59,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:29:59,038 INFO L276 IsEmpty]: Start isEmpty. Operand 6399 states and 7457 transitions. [2021-02-22 02:29:59,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-02-22 02:29:59,043 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:29:59,044 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:29:59,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-22 02:29:59,044 INFO L428 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:29:59,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:29:59,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1059636766, now seen corresponding path program 1 times [2021-02-22 02:29:59,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:29:59,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404477097] [2021-02-22 02:29:59,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:29:59,048 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:29:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:29:59,163 WARN L141 QuantifierPusher]: treesize reduction 32, result has 22.0 percent of original size [2021-02-22 02:29:59,164 WARN L147 QuantifierPusher]: treesize reduction 32, result has 22.0 percent of original size 9 [2021-02-22 02:29:59,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:59,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,404 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:29:59,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:29:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:29:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:29:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:29:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:59,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:59,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:29:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:29:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:29:59,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:29:59,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:29:59,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:29:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:29:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-22 02:29:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:29:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:29:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-02-22 02:29:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:29:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:29:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:29:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:29:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:29:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:29:59,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:29:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:29:59,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:29:59,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:30:00,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404477097] [2021-02-22 02:30:00,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:30:00,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:30:00,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620202126] [2021-02-22 02:30:00,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:30:00,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:30:00,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:30:00,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:30:00,168 INFO L87 Difference]: Start difference. First operand 6399 states and 7457 transitions. Second operand 19 states. [2021-02-22 02:30:02,074 WARN L202 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2021-02-22 02:30:02,349 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2021-02-22 02:30:02,826 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-22 02:30:09,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:30:09,561 INFO L93 Difference]: Finished difference Result 12219 states and 14306 transitions. [2021-02-22 02:30:09,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-02-22 02:30:09,563 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 389 [2021-02-22 02:30:09,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:30:09,594 INFO L225 Difference]: With dead ends: 12219 [2021-02-22 02:30:09,594 INFO L226 Difference]: Without dead ends: 6439 [2021-02-22 02:30:09,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=485, Invalid=1585, Unknown=0, NotChecked=0, Total=2070 [2021-02-22 02:30:09,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6439 states. [2021-02-22 02:30:12,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6439 to 6116. [2021-02-22 02:30:12,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6116 states. [2021-02-22 02:30:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6116 states to 6116 states and 7129 transitions. [2021-02-22 02:30:12,366 INFO L78 Accepts]: Start accepts. Automaton has 6116 states and 7129 transitions. Word has length 389 [2021-02-22 02:30:12,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:30:12,367 INFO L480 AbstractCegarLoop]: Abstraction has 6116 states and 7129 transitions. [2021-02-22 02:30:12,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:30:12,367 INFO L276 IsEmpty]: Start isEmpty. Operand 6116 states and 7129 transitions. [2021-02-22 02:30:12,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-02-22 02:30:12,372 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:30:12,372 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:30:12,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-22 02:30:12,373 INFO L428 AbstractCegarLoop]: === Iteration 23 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:30:12,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:30:12,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1115660866, now seen corresponding path program 1 times [2021-02-22 02:30:12,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:30:12,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717512811] [2021-02-22 02:30:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:30:12,377 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:30:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:12,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:12,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:30:12,474 WARN L141 QuantifierPusher]: treesize reduction 30, result has 23.1 percent of original size [2021-02-22 02:30:12,475 WARN L147 QuantifierPusher]: treesize reduction 30, result has 23.1 percent of original size 9 [2021-02-22 02:30:12,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:12,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:30:12,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:12,721 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:30:12,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:30:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:12,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:12,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:30:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:12,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:12,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:30:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:12,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:12,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:30:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:12,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:12,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:12,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:30:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:12,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:12,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:30:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:12,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:12,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:12,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:30:12,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:12,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:12,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:30:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:13,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:30:13,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:30:13,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-22 02:30:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:30:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:30:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-02-22 02:30:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:30:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:30:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:30:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:30:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:30:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:30:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:13,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:13,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:30:13,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717512811] [2021-02-22 02:30:13,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:30:13,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-22 02:30:13,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020249809] [2021-02-22 02:30:13,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-22 02:30:13,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:30:13,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-22 02:30:13,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-02-22 02:30:13,414 INFO L87 Difference]: Start difference. First operand 6116 states and 7129 transitions. Second operand 22 states. [2021-02-22 02:30:13,687 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:30:14,029 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-02-22 02:30:14,569 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:30:15,864 WARN L202 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 162 [2021-02-22 02:30:16,174 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-02-22 02:30:16,724 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:30:23,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:30:23,892 INFO L93 Difference]: Finished difference Result 11484 states and 13458 transitions. [2021-02-22 02:30:23,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-22 02:30:23,893 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 389 [2021-02-22 02:30:23,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:30:23,924 INFO L225 Difference]: With dead ends: 11484 [2021-02-22 02:30:23,925 INFO L226 Difference]: Without dead ends: 6152 [2021-02-22 02:30:23,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=614, Invalid=2248, Unknown=0, NotChecked=0, Total=2862 [2021-02-22 02:30:23,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6152 states. [2021-02-22 02:30:26,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6152 to 6146. [2021-02-22 02:30:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6146 states. [2021-02-22 02:30:27,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6146 states to 6146 states and 7165 transitions. [2021-02-22 02:30:27,005 INFO L78 Accepts]: Start accepts. Automaton has 6146 states and 7165 transitions. Word has length 389 [2021-02-22 02:30:27,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:30:27,005 INFO L480 AbstractCegarLoop]: Abstraction has 6146 states and 7165 transitions. [2021-02-22 02:30:27,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-22 02:30:27,005 INFO L276 IsEmpty]: Start isEmpty. Operand 6146 states and 7165 transitions. [2021-02-22 02:30:27,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-02-22 02:30:27,009 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:30:27,009 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:30:27,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-22 02:30:27,010 INFO L428 AbstractCegarLoop]: === Iteration 24 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:30:27,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:30:27,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1839517154, now seen corresponding path program 1 times [2021-02-22 02:30:27,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:30:27,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262289151] [2021-02-22 02:30:27,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:30:27,013 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:30:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:30:27,109 WARN L141 QuantifierPusher]: treesize reduction 28, result has 24.3 percent of original size [2021-02-22 02:30:27,110 WARN L147 QuantifierPusher]: treesize reduction 28, result has 24.3 percent of original size 9 [2021-02-22 02:30:27,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:27,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,332 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:30:27,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:30:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:30:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:30:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:30:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:27,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:27,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:30:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:30:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:30:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-22 02:30:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:27,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:27,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:30:27,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:30:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:30:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-02-22 02:30:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:30:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:30:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:30:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:30:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:30:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:30:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:27,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:27,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:30:27,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262289151] [2021-02-22 02:30:27,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:30:27,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-22 02:30:27,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313741756] [2021-02-22 02:30:27,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-22 02:30:27,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:30:27,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-22 02:30:27,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-02-22 02:30:27,914 INFO L87 Difference]: Start difference. First operand 6146 states and 7165 transitions. Second operand 19 states. [2021-02-22 02:30:28,190 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-02-22 02:30:29,737 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2021-02-22 02:30:30,008 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2021-02-22 02:30:30,496 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-22 02:30:32,598 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:30:32,768 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-22 02:30:33,778 WARN L202 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 156 [2021-02-22 02:30:35,044 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2021-02-22 02:30:36,439 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:30:36,568 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:30:36,765 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:30:40,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:30:40,157 INFO L93 Difference]: Finished difference Result 11653 states and 13631 transitions. [2021-02-22 02:30:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-22 02:30:40,158 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 389 [2021-02-22 02:30:40,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:30:40,184 INFO L225 Difference]: With dead ends: 11653 [2021-02-22 02:30:40,185 INFO L226 Difference]: Without dead ends: 6177 [2021-02-22 02:30:40,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=702, Invalid=2378, Unknown=0, NotChecked=0, Total=3080 [2021-02-22 02:30:40,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6177 states. [2021-02-22 02:30:42,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6177 to 6141. [2021-02-22 02:30:42,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6141 states. [2021-02-22 02:30:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6141 states to 6141 states and 7155 transitions. [2021-02-22 02:30:42,726 INFO L78 Accepts]: Start accepts. Automaton has 6141 states and 7155 transitions. Word has length 389 [2021-02-22 02:30:42,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:30:42,726 INFO L480 AbstractCegarLoop]: Abstraction has 6141 states and 7155 transitions. [2021-02-22 02:30:42,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-22 02:30:42,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6141 states and 7155 transitions. [2021-02-22 02:30:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-02-22 02:30:42,730 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:30:42,732 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:30:42,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-02-22 02:30:42,732 INFO L428 AbstractCegarLoop]: === Iteration 25 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:30:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:30:42,732 INFO L82 PathProgramCache]: Analyzing trace with hash 384992917, now seen corresponding path program 1 times [2021-02-22 02:30:42,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:30:42,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064627719] [2021-02-22 02:30:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:30:42,735 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:30:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:42,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:42,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:30:42,804 WARN L141 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size [2021-02-22 02:30:42,804 WARN L147 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size 4 [2021-02-22 02:30:42,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:42,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,024 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:30:43,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:30:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:30:43,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:30:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:30:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:30:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:30:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:30:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:30:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-22 02:30:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:43,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:43,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:43,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:30:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:30:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-02-22 02:30:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:30:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:30:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:30:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:30:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:30:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:30:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:43,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:43,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:30:43,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064627719] [2021-02-22 02:30:43,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:30:43,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 02:30:43,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584696918] [2021-02-22 02:30:43,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 02:30:43,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:30:43,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 02:30:43,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-22 02:30:43,603 INFO L87 Difference]: Start difference. First operand 6141 states and 7155 transitions. Second operand 16 states. [2021-02-22 02:30:43,975 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:30:44,649 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:30:45,443 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:30:47,329 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-22 02:30:47,461 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:30:47,617 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:30:50,582 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:30:53,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:30:53,606 INFO L93 Difference]: Finished difference Result 11677 states and 13666 transitions. [2021-02-22 02:30:53,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-22 02:30:53,607 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 389 [2021-02-22 02:30:53,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:30:53,640 INFO L225 Difference]: With dead ends: 11677 [2021-02-22 02:30:53,640 INFO L226 Difference]: Without dead ends: 6161 [2021-02-22 02:30:53,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=628, Invalid=1724, Unknown=0, NotChecked=0, Total=2352 [2021-02-22 02:30:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6161 states. [2021-02-22 02:30:56,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6161 to 6137. [2021-02-22 02:30:56,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6137 states. [2021-02-22 02:30:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 7141 transitions. [2021-02-22 02:30:56,508 INFO L78 Accepts]: Start accepts. Automaton has 6137 states and 7141 transitions. Word has length 389 [2021-02-22 02:30:56,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:30:56,508 INFO L480 AbstractCegarLoop]: Abstraction has 6137 states and 7141 transitions. [2021-02-22 02:30:56,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 02:30:56,508 INFO L276 IsEmpty]: Start isEmpty. Operand 6137 states and 7141 transitions. [2021-02-22 02:30:56,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-02-22 02:30:56,512 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:30:56,512 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:30:56,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-02-22 02:30:56,512 INFO L428 AbstractCegarLoop]: === Iteration 26 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:30:56,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:30:56,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1214813734, now seen corresponding path program 1 times [2021-02-22 02:30:56,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:30:56,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019093305] [2021-02-22 02:30:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:30:56,516 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:30:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:56,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:30:56,585 WARN L141 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size [2021-02-22 02:30:56,585 WARN L147 QuantifierPusher]: treesize reduction 6, result has 40.0 percent of original size 4 [2021-02-22 02:30:56,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:56,792 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:30:56,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:30:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:56,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:56,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:30:56,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-22 02:30:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:56,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:56,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:30:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:56,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:56,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-22 02:30:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:56,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:56,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-22 02:30:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:56,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:56,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:30:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:56,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:56,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:56,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:56,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 02:30:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:56,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:56,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:56,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-22 02:30:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:57,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-02-22 02:30:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:57,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:57,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:30:57,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:30:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:57,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 02:30:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:57,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-02-22 02:30:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:57,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-22 02:30:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:57,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 02:30:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:57,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-22 02:30:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:57,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-22 02:30:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:57,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-22 02:30:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:57,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-22 02:30:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:30:57,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:30:57,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:30:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:30:57,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019093305] [2021-02-22 02:30:57,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:30:57,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 02:30:57,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234400338] [2021-02-22 02:30:57,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 02:30:57,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:30:57,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 02:30:57,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-02-22 02:30:57,272 INFO L87 Difference]: Start difference. First operand 6137 states and 7141 transitions. Second operand 16 states. [2021-02-22 02:30:57,393 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:30:57,537 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:30:58,266 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:30:59,063 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-02-22 02:31:00,971 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:31:01,102 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:31:01,235 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:31:01,391 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:31:04,189 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:31:04,317 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:31:07,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:31:07,483 INFO L93 Difference]: Finished difference Result 11602 states and 13564 transitions. [2021-02-22 02:31:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-22 02:31:07,484 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 390 [2021-02-22 02:31:07,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:31:07,508 INFO L225 Difference]: With dead ends: 11602 [2021-02-22 02:31:07,508 INFO L226 Difference]: Without dead ends: 6150 [2021-02-22 02:31:07,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=664, Invalid=1988, Unknown=0, NotChecked=0, Total=2652 [2021-02-22 02:31:07,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2021-02-22 02:31:09,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 6132. [2021-02-22 02:31:09,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6132 states. [2021-02-22 02:31:10,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6132 states to 6132 states and 7131 transitions. [2021-02-22 02:31:10,007 INFO L78 Accepts]: Start accepts. Automaton has 6132 states and 7131 transitions. Word has length 390 [2021-02-22 02:31:10,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:31:10,008 INFO L480 AbstractCegarLoop]: Abstraction has 6132 states and 7131 transitions. [2021-02-22 02:31:10,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 02:31:10,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6132 states and 7131 transitions. [2021-02-22 02:31:10,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-02-22 02:31:10,011 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:31:10,012 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:31:10,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-02-22 02:31:10,012 INFO L428 AbstractCegarLoop]: === Iteration 27 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:31:10,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:31:10,012 INFO L82 PathProgramCache]: Analyzing trace with hash -199913850, now seen corresponding path program 1 times [2021-02-22 02:31:10,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:31:10,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692051605] [2021-02-22 02:31:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:31:10,016 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:31:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:31:10,058 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:31:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:31:10,105 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:31:10,502 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 02:31:10,502 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 02:31:10,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-02-22 02:31:10,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:31:10 BoogieIcfgContainer [2021-02-22 02:31:10,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:31:10,549 INFO L168 Benchmark]: Toolchain (without parser) took 285220.99 ms. Allocated memory was 163.6 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 139.9 MB in the beginning and 746.1 MB in the end (delta: -606.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. [2021-02-22 02:31:10,549 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 163.6 MB. Free memory was 136.6 MB in the beginning and 136.5 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:31:10,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.52 ms. Allocated memory is still 163.6 MB. Free memory was 138.8 MB in the beginning and 121.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-22 02:31:10,549 INFO L168 Benchmark]: Boogie Preprocessor took 119.01 ms. Allocated memory is still 163.6 MB. Free memory was 121.4 MB in the beginning and 118.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:31:10,550 INFO L168 Benchmark]: RCFGBuilder took 1149.78 ms. Allocated memory was 163.6 MB in the beginning and 201.3 MB in the end (delta: 37.7 MB). Free memory was 118.6 MB in the beginning and 160.7 MB in the end (delta: -42.1 MB). Peak memory consumption was 34.3 MB. Max. memory is 8.0 GB. [2021-02-22 02:31:10,550 INFO L168 Benchmark]: TraceAbstraction took 283331.47 ms. Allocated memory was 201.3 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 160.2 MB in the beginning and 746.1 MB in the end (delta: -585.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. [2021-02-22 02:31:10,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 163.6 MB. Free memory was 136.6 MB in the beginning and 136.5 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 599.52 ms. Allocated memory is still 163.6 MB. Free memory was 138.8 MB in the beginning and 121.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 119.01 ms. Allocated memory is still 163.6 MB. Free memory was 121.4 MB in the beginning and 118.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1149.78 ms. Allocated memory was 163.6 MB in the beginning and 201.3 MB in the end (delta: 37.7 MB). Free memory was 118.6 MB in the beginning and 160.7 MB in the end (delta: -42.1 MB). Peak memory consumption was 34.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 283331.47 ms. Allocated memory was 201.3 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 160.2 MB in the beginning and 746.1 MB in the end (delta: -585.9 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: 618]: 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 1 [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) [L616] COND TRUE ! arg [L618] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 582 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 283.2s, OverallIterations: 27, TraceHistogramMax: 2, AutomataDifference: 230.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16800 SDtfs, 82070 SDslu, 26949 SDs, 0 SdLazy, 79165 SolverSat, 14022 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1977 GetRequests, 856 SyntacticMatches, 18 SemanticMatches, 1103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11577 ImplicationChecksByTransitivity, 85.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6479occurred 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: 29.6s AutomataMinimizationTime, 26 MinimizatonAttempts, 5640 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...