/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:47:47,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:47:47,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:47:47,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:47:47,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:47:47,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:47:47,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:47:47,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:47:47,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:47:47,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:47:47,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:47:47,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:47:47,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:47:47,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:47:47,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:47:47,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:47:47,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:47:47,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:47:47,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:47:47,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:47:47,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:47:47,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:47:47,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:47:47,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:47:47,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:47:47,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:47:47,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:47:47,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:47:47,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:47:47,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:47:47,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:47:47,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:47:47,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:47:47,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:47:47,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:47:47,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:47:47,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:47:47,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:47:47,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:47:47,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:47:47,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:47:47,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:47:47,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:47:47,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:47:47,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:47:47,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:47:47,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:47:47,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:47:47,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:47:47,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:47:47,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:47:47,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:47:47,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:47:47,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:47:47,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:47:47,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:47:47,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:47:47,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:47:47,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:47:47,161 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:47:47,161 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:47:47,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:47:47,162 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:47:47,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:47:47,162 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:47:47,162 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:47:47,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:47:47,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:47:47,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:47:47,378 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:47:47,378 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:47:47,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c [2022-01-10 23:47:47,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72204282c/7f3ba212a2b946f28b2f1adbf7e16160/FLAGf5976456c [2022-01-10 23:47:47,865 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:47:47,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c [2022-01-10 23:47:47,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72204282c/7f3ba212a2b946f28b2f1adbf7e16160/FLAGf5976456c [2022-01-10 23:47:48,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72204282c/7f3ba212a2b946f28b2f1adbf7e16160 [2022-01-10 23:47:48,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:47:48,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:47:48,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:47:48,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:47:48,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:47:48,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:48,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a280a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48, skipping insertion in model container [2022-01-10 23:47:48,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:48,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:47:48,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:47:48,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c[1545,1558] [2022-01-10 23:47:48,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:48,587 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:47:48,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:47:48,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c[1545,1558] [2022-01-10 23:47:48,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:48,702 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:47:48,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c[1545,1558] [2022-01-10 23:47:48,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:48,777 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:47:48,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48 WrapperNode [2022-01-10 23:47:48,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:47:48,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:47:48,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:47:48,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:47:48,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:48,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:49,127 INFO L137 Inliner]: procedures = 97, calls = 355, calls flagged for inlining = 208, calls inlined = 1098, statements flattened = 36055 [2022-01-10 23:47:49,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:47:49,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:47:49,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:47:49,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:47:49,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:49,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:49,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:49,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:49,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:49,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:49,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:49,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:47:49,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:47:49,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:47:49,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:47:49,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:49,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:47:49,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:47:49,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 23:47:49,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 23:47:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:47:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:47:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:47:49,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:47:49,982 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:47:49,983 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:48:00,236 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:48:00,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:48:00,282 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:48:00,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:00 BoogieIcfgContainer [2022-01-10 23:48:00,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:48:00,292 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:48:00,292 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:48:00,294 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:48:00,296 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:00" (1/1) ... [2022-01-10 23:48:01,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:48:01 BasicIcfg [2022-01-10 23:48:01,823 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:48:01,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:48:01,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:48:01,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:48:01,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:47:48" (1/4) ... [2022-01-10 23:48:01,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f54436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:48:01, skipping insertion in model container [2022-01-10 23:48:01,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48" (2/4) ... [2022-01-10 23:48:01,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f54436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:48:01, skipping insertion in model container [2022-01-10 23:48:01,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:00" (3/4) ... [2022-01-10 23:48:01,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f54436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:48:01, skipping insertion in model container [2022-01-10 23:48:01,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:48:01" (4/4) ... [2022-01-10 23:48:01,830 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product31.cil.cTransformedIcfg [2022-01-10 23:48:01,833 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:48:01,834 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 23:48:01,898 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:48:01,902 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:48:01,903 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 23:48:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 9393 states, 9382 states have (on average 1.8711362182903433) internal successors, (17555), 9392 states have internal predecessors, (17555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:02,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:48:02,041 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:02,041 INFO L514 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] [2022-01-10 23:48:02,042 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:02,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:02,046 INFO L85 PathProgramCache]: Analyzing trace with hash 708718841, now seen corresponding path program 1 times [2022-01-10 23:48:02,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:02,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233626749] [2022-01-10 23:48:02,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:02,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:02,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:02,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:02,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233626749] [2022-01-10 23:48:02,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233626749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:02,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:02,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:02,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389385176] [2022-01-10 23:48:02,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:02,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:02,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:02,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:02,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:02,490 INFO L87 Difference]: Start difference. First operand has 9393 states, 9382 states have (on average 1.8711362182903433) internal successors, (17555), 9392 states have internal predecessors, (17555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:05,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:05,373 INFO L93 Difference]: Finished difference Result 23320 states and 43559 transitions. [2022-01-10 23:48:05,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:05,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 23:48:05,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:05,442 INFO L225 Difference]: With dead ends: 23320 [2022-01-10 23:48:05,443 INFO L226 Difference]: Without dead ends: 15050 [2022-01-10 23:48:05,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:05,464 INFO L933 BasicCegarLoop]: 26610 mSDtfsCounter, 13378 mSDsluCounter, 12815 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13378 SdHoareTripleChecker+Valid, 39425 SdHoareTripleChecker+Invalid, 2703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:05,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13378 Valid, 39425 Invalid, 2703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [644 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-10 23:48:05,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15050 states. [2022-01-10 23:48:05,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15050 to 14994. [2022-01-10 23:48:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14994 states, 14984 states have (on average 1.8260144153764015) internal successors, (27361), 14993 states have internal predecessors, (27361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:05,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14994 states to 14994 states and 27361 transitions. [2022-01-10 23:48:05,829 INFO L78 Accepts]: Start accepts. Automaton has 14994 states and 27361 transitions. Word has length 52 [2022-01-10 23:48:05,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:05,830 INFO L470 AbstractCegarLoop]: Abstraction has 14994 states and 27361 transitions. [2022-01-10 23:48:05,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:05,830 INFO L276 IsEmpty]: Start isEmpty. Operand 14994 states and 27361 transitions. [2022-01-10 23:48:05,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:48:05,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:05,832 INFO L514 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] [2022-01-10 23:48:05,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:48:05,833 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:05,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:05,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1843438120, now seen corresponding path program 1 times [2022-01-10 23:48:05,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:05,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690139704] [2022-01-10 23:48:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:05,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:05,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:05,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690139704] [2022-01-10 23:48:05,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690139704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:05,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:05,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:05,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433431021] [2022-01-10 23:48:05,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:05,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:05,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:05,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:05,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:05,962 INFO L87 Difference]: Start difference. First operand 14994 states and 27361 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:06,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:06,707 INFO L93 Difference]: Finished difference Result 29933 states and 55273 transitions. [2022-01-10 23:48:06,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:06,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 23:48:06,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:07,004 INFO L225 Difference]: With dead ends: 29933 [2022-01-10 23:48:07,004 INFO L226 Difference]: Without dead ends: 22438 [2022-01-10 23:48:07,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:07,029 INFO L933 BasicCegarLoop]: 27110 mSDtfsCounter, 16577 mSDsluCounter, 13871 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16577 SdHoareTripleChecker+Valid, 40981 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:07,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16577 Valid, 40981 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:48:07,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22438 states. [2022-01-10 23:48:07,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22438 to 22410. [2022-01-10 23:48:07,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22410 states, 22400 states have (on average 1.8401785714285714) internal successors, (41220), 22409 states have internal predecessors, (41220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:07,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22410 states to 22410 states and 41220 transitions. [2022-01-10 23:48:07,587 INFO L78 Accepts]: Start accepts. Automaton has 22410 states and 41220 transitions. Word has length 52 [2022-01-10 23:48:07,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:07,588 INFO L470 AbstractCegarLoop]: Abstraction has 22410 states and 41220 transitions. [2022-01-10 23:48:07,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:07,591 INFO L276 IsEmpty]: Start isEmpty. Operand 22410 states and 41220 transitions. [2022-01-10 23:48:07,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:48:07,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:07,598 INFO L514 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] [2022-01-10 23:48:07,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:48:07,598 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:07,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:07,599 INFO L85 PathProgramCache]: Analyzing trace with hash -955934439, now seen corresponding path program 1 times [2022-01-10 23:48:07,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:07,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279710391] [2022-01-10 23:48:07,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:07,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:07,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:07,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:07,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279710391] [2022-01-10 23:48:07,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279710391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:07,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:07,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:07,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136183546] [2022-01-10 23:48:07,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:07,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:07,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:07,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:07,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:07,693 INFO L87 Difference]: Start difference. First operand 22410 states and 41220 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:08,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:08,494 INFO L93 Difference]: Finished difference Result 64477 states and 118726 transitions. [2022-01-10 23:48:08,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:08,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 23:48:08,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:08,611 INFO L225 Difference]: With dead ends: 64477 [2022-01-10 23:48:08,612 INFO L226 Difference]: Without dead ends: 43601 [2022-01-10 23:48:08,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:08,656 INFO L933 BasicCegarLoop]: 23444 mSDtfsCounter, 15765 mSDsluCounter, 16604 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15765 SdHoareTripleChecker+Valid, 40048 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:08,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15765 Valid, 40048 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:08,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43601 states. [2022-01-10 23:48:09,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43601 to 43268. [2022-01-10 23:48:09,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43268 states, 43258 states have (on average 1.840723103241019) internal successors, (79626), 43267 states have internal predecessors, (79626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43268 states to 43268 states and 79626 transitions. [2022-01-10 23:48:09,679 INFO L78 Accepts]: Start accepts. Automaton has 43268 states and 79626 transitions. Word has length 52 [2022-01-10 23:48:09,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:09,680 INFO L470 AbstractCegarLoop]: Abstraction has 43268 states and 79626 transitions. [2022-01-10 23:48:09,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:09,680 INFO L276 IsEmpty]: Start isEmpty. Operand 43268 states and 79626 transitions. [2022-01-10 23:48:09,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:48:09,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:09,683 INFO L514 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] [2022-01-10 23:48:09,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:48:09,684 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:09,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:09,685 INFO L85 PathProgramCache]: Analyzing trace with hash -169564014, now seen corresponding path program 1 times [2022-01-10 23:48:09,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:09,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318156565] [2022-01-10 23:48:09,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:09,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:09,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:09,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318156565] [2022-01-10 23:48:09,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318156565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:09,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:09,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:48:09,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137731138] [2022-01-10 23:48:09,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:09,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:48:09,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:09,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:48:09,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:48:09,765 INFO L87 Difference]: Start difference. First operand 43268 states and 79626 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:11,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:11,852 INFO L93 Difference]: Finished difference Result 172763 states and 317912 transitions. [2022-01-10 23:48:11,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:48:11,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 23:48:11,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:12,259 INFO L225 Difference]: With dead ends: 172763 [2022-01-10 23:48:12,260 INFO L226 Difference]: Without dead ends: 129522 [2022-01-10 23:48:12,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:48:12,354 INFO L933 BasicCegarLoop]: 33221 mSDtfsCounter, 49684 mSDsluCounter, 49861 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49684 SdHoareTripleChecker+Valid, 83082 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:12,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49684 Valid, 83082 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:12,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129522 states. [2022-01-10 23:48:14,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129522 to 43288. [2022-01-10 23:48:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43288 states, 43278 states have (on average 1.8403345810804566) internal successors, (79646), 43287 states have internal predecessors, (79646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:14,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43288 states to 43288 states and 79646 transitions. [2022-01-10 23:48:14,450 INFO L78 Accepts]: Start accepts. Automaton has 43288 states and 79646 transitions. Word has length 52 [2022-01-10 23:48:14,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:14,450 INFO L470 AbstractCegarLoop]: Abstraction has 43288 states and 79646 transitions. [2022-01-10 23:48:14,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:14,450 INFO L276 IsEmpty]: Start isEmpty. Operand 43288 states and 79646 transitions. [2022-01-10 23:48:14,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 23:48:14,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:14,454 INFO L514 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] [2022-01-10 23:48:14,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:48:14,454 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:14,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:14,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1854622765, now seen corresponding path program 1 times [2022-01-10 23:48:14,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:14,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353634369] [2022-01-10 23:48:14,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:14,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:14,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:14,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:14,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353634369] [2022-01-10 23:48:14,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353634369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:14,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:14,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:14,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090126339] [2022-01-10 23:48:14,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:14,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:14,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:14,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:14,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:14,516 INFO L87 Difference]: Start difference. First operand 43288 states and 79646 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:15,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:15,400 INFO L93 Difference]: Finished difference Result 86425 states and 159008 transitions. [2022-01-10 23:48:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:15,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-10 23:48:15,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:15,587 INFO L225 Difference]: With dead ends: 86425 [2022-01-10 23:48:15,588 INFO L226 Difference]: Without dead ends: 43152 [2022-01-10 23:48:15,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:15,623 INFO L933 BasicCegarLoop]: 16572 mSDtfsCounter, 16564 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16564 SdHoareTripleChecker+Valid, 16580 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:15,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16564 Valid, 16580 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:15,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43152 states. [2022-01-10 23:48:16,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43152 to 43152. [2022-01-10 23:48:16,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43152 states, 43142 states have (on average 1.8398312549255946) internal successors, (79374), 43151 states have internal predecessors, (79374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:16,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43152 states to 43152 states and 79374 transitions. [2022-01-10 23:48:16,784 INFO L78 Accepts]: Start accepts. Automaton has 43152 states and 79374 transitions. Word has length 53 [2022-01-10 23:48:16,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:16,785 INFO L470 AbstractCegarLoop]: Abstraction has 43152 states and 79374 transitions. [2022-01-10 23:48:16,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 43152 states and 79374 transitions. [2022-01-10 23:48:16,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 23:48:16,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:16,787 INFO L514 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] [2022-01-10 23:48:16,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:48:16,787 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:16,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:16,788 INFO L85 PathProgramCache]: Analyzing trace with hash -834060011, now seen corresponding path program 1 times [2022-01-10 23:48:16,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:16,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259251553] [2022-01-10 23:48:16,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:16,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:16,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:16,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259251553] [2022-01-10 23:48:16,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259251553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:16,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:16,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:48:16,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295322733] [2022-01-10 23:48:16,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:16,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:48:16,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:16,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:48:16,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:48:16,889 INFO L87 Difference]: Start difference. First operand 43152 states and 79374 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:18,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:18,019 INFO L93 Difference]: Finished difference Result 86282 states and 158719 transitions. [2022-01-10 23:48:18,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:48:18,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-10 23:48:18,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:18,090 INFO L225 Difference]: With dead ends: 86282 [2022-01-10 23:48:18,091 INFO L226 Difference]: Without dead ends: 43152 [2022-01-10 23:48:18,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:48:18,125 INFO L933 BasicCegarLoop]: 16558 mSDtfsCounter, 33119 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33119 SdHoareTripleChecker+Valid, 16596 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:18,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33119 Valid, 16596 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:18,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43152 states. [2022-01-10 23:48:19,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43152 to 43152. [2022-01-10 23:48:19,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43152 states, 43142 states have (on average 1.8397385378517455) internal successors, (79370), 43151 states have internal predecessors, (79370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43152 states to 43152 states and 79370 transitions. [2022-01-10 23:48:19,265 INFO L78 Accepts]: Start accepts. Automaton has 43152 states and 79370 transitions. Word has length 55 [2022-01-10 23:48:19,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:19,265 INFO L470 AbstractCegarLoop]: Abstraction has 43152 states and 79370 transitions. [2022-01-10 23:48:19,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:19,265 INFO L276 IsEmpty]: Start isEmpty. Operand 43152 states and 79370 transitions. [2022-01-10 23:48:19,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 23:48:19,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:19,273 INFO L514 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] [2022-01-10 23:48:19,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:48:19,273 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:19,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:19,274 INFO L85 PathProgramCache]: Analyzing trace with hash 294848695, now seen corresponding path program 1 times [2022-01-10 23:48:19,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:19,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939819946] [2022-01-10 23:48:19,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:19,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:19,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:19,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:19,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939819946] [2022-01-10 23:48:19,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939819946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:19,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:19,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:48:19,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446376697] [2022-01-10 23:48:19,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:19,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:48:19,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:19,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:48:19,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:48:19,355 INFO L87 Difference]: Start difference. First operand 43152 states and 79370 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:20,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:20,518 INFO L93 Difference]: Finished difference Result 86276 states and 158701 transitions. [2022-01-10 23:48:20,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:48:20,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 23:48:20,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:20,585 INFO L225 Difference]: With dead ends: 86276 [2022-01-10 23:48:20,586 INFO L226 Difference]: Without dead ends: 43152 [2022-01-10 23:48:20,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:48:20,622 INFO L933 BasicCegarLoop]: 16540 mSDtfsCounter, 33096 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33096 SdHoareTripleChecker+Valid, 16583 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:20,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33096 Valid, 16583 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:20,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43152 states. [2022-01-10 23:48:21,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43152 to 43152. [2022-01-10 23:48:21,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43152 states, 43142 states have (on average 1.8396458207778963) internal successors, (79366), 43151 states have internal predecessors, (79366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:21,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43152 states to 43152 states and 79366 transitions. [2022-01-10 23:48:21,859 INFO L78 Accepts]: Start accepts. Automaton has 43152 states and 79366 transitions. Word has length 56 [2022-01-10 23:48:21,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:21,859 INFO L470 AbstractCegarLoop]: Abstraction has 43152 states and 79366 transitions. [2022-01-10 23:48:21,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:21,860 INFO L276 IsEmpty]: Start isEmpty. Operand 43152 states and 79366 transitions. [2022-01-10 23:48:21,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 23:48:21,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:21,862 INFO L514 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] [2022-01-10 23:48:21,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:48:21,863 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:21,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:21,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1058710976, now seen corresponding path program 1 times [2022-01-10 23:48:21,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:21,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474870171] [2022-01-10 23:48:21,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:21,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:21,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:21,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474870171] [2022-01-10 23:48:21,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474870171] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:21,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:21,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:48:21,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796576585] [2022-01-10 23:48:21,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:21,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:48:21,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:21,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:48:21,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:48:21,944 INFO L87 Difference]: Start difference. First operand 43152 states and 79366 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:23,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:23,324 INFO L93 Difference]: Finished difference Result 86276 states and 158694 transitions. [2022-01-10 23:48:23,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:48:23,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-10 23:48:23,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:23,402 INFO L225 Difference]: With dead ends: 86276 [2022-01-10 23:48:23,402 INFO L226 Difference]: Without dead ends: 43152 [2022-01-10 23:48:23,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:48:23,433 INFO L933 BasicCegarLoop]: 16540 mSDtfsCounter, 49638 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49638 SdHoareTripleChecker+Valid, 16583 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:23,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49638 Valid, 16583 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:23,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43152 states. [2022-01-10 23:48:24,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43152 to 43152. [2022-01-10 23:48:24,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43152 states, 43142 states have (on average 1.8395531037040471) internal successors, (79362), 43151 states have internal predecessors, (79362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:24,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43152 states to 43152 states and 79362 transitions. [2022-01-10 23:48:24,646 INFO L78 Accepts]: Start accepts. Automaton has 43152 states and 79362 transitions. Word has length 57 [2022-01-10 23:48:24,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:24,646 INFO L470 AbstractCegarLoop]: Abstraction has 43152 states and 79362 transitions. [2022-01-10 23:48:24,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:24,646 INFO L276 IsEmpty]: Start isEmpty. Operand 43152 states and 79362 transitions. [2022-01-10 23:48:24,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:48:24,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:24,648 INFO L514 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] [2022-01-10 23:48:24,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:48:24,649 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:24,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:24,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1279746582, now seen corresponding path program 1 times [2022-01-10 23:48:24,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:24,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007057621] [2022-01-10 23:48:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:24,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:24,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:24,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:24,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007057621] [2022-01-10 23:48:24,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007057621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:24,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:24,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 23:48:24,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760522659] [2022-01-10 23:48:24,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:24,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:48:24,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:24,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:48:24,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:48:24,703 INFO L87 Difference]: Start difference. First operand 43152 states and 79362 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:26,129 INFO L93 Difference]: Finished difference Result 86276 states and 158687 transitions. [2022-01-10 23:48:26,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 23:48:26,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 23:48:26,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:26,201 INFO L225 Difference]: With dead ends: 86276 [2022-01-10 23:48:26,202 INFO L226 Difference]: Without dead ends: 43152 [2022-01-10 23:48:26,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 23:48:26,229 INFO L933 BasicCegarLoop]: 16540 mSDtfsCounter, 49634 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49634 SdHoareTripleChecker+Valid, 16583 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:26,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49634 Valid, 16583 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:26,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43152 states. [2022-01-10 23:48:27,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43152 to 43152. [2022-01-10 23:48:27,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43152 states, 43142 states have (on average 1.839460386630198) internal successors, (79358), 43151 states have internal predecessors, (79358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:27,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43152 states to 43152 states and 79358 transitions. [2022-01-10 23:48:27,542 INFO L78 Accepts]: Start accepts. Automaton has 43152 states and 79358 transitions. Word has length 58 [2022-01-10 23:48:27,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:27,542 INFO L470 AbstractCegarLoop]: Abstraction has 43152 states and 79358 transitions. [2022-01-10 23:48:27,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:27,542 INFO L276 IsEmpty]: Start isEmpty. Operand 43152 states and 79358 transitions. [2022-01-10 23:48:27,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 23:48:27,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:27,545 INFO L514 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] [2022-01-10 23:48:27,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:48:27,545 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:27,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1005871341, now seen corresponding path program 1 times [2022-01-10 23:48:27,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:27,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55553702] [2022-01-10 23:48:27,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:27,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:27,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:27,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:27,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55553702] [2022-01-10 23:48:27,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55553702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:27,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:27,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:48:27,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824978016] [2022-01-10 23:48:27,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:27,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:48:27,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:27,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:48:27,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:48:27,620 INFO L87 Difference]: Start difference. First operand 43152 states and 79358 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:29,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:29,142 INFO L93 Difference]: Finished difference Result 86276 states and 158680 transitions. [2022-01-10 23:48:29,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 23:48:29,142 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-10 23:48:29,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:29,205 INFO L225 Difference]: With dead ends: 86276 [2022-01-10 23:48:29,206 INFO L226 Difference]: Without dead ends: 43152 [2022-01-10 23:48:29,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:48:29,230 INFO L933 BasicCegarLoop]: 16540 mSDtfsCounter, 33084 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33084 SdHoareTripleChecker+Valid, 16593 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:29,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33084 Valid, 16593 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:29,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43152 states. [2022-01-10 23:48:30,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43152 to 43152. [2022-01-10 23:48:30,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43152 states, 43142 states have (on average 1.8393676695563488) internal successors, (79354), 43151 states have internal predecessors, (79354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43152 states to 43152 states and 79354 transitions. [2022-01-10 23:48:30,579 INFO L78 Accepts]: Start accepts. Automaton has 43152 states and 79354 transitions. Word has length 59 [2022-01-10 23:48:30,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:30,580 INFO L470 AbstractCegarLoop]: Abstraction has 43152 states and 79354 transitions. [2022-01-10 23:48:30,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 43152 states and 79354 transitions. [2022-01-10 23:48:30,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 23:48:30,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:30,582 INFO L514 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] [2022-01-10 23:48:30,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:48:30,582 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:30,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:30,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1354057955, now seen corresponding path program 1 times [2022-01-10 23:48:30,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:30,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378590609] [2022-01-10 23:48:30,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:30,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:30,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:30,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378590609] [2022-01-10 23:48:30,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378590609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:30,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:30,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:48:30,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346407026] [2022-01-10 23:48:30,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:30,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:48:30,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:30,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:48:30,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:48:30,646 INFO L87 Difference]: Start difference. First operand 43152 states and 79354 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:39,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:39,312 INFO L93 Difference]: Finished difference Result 277665 states and 510262 transitions. [2022-01-10 23:48:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:48:39,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 23:48:39,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:39,955 INFO L225 Difference]: With dead ends: 277665 [2022-01-10 23:48:39,955 INFO L226 Difference]: Without dead ends: 235579 [2022-01-10 23:48:40,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:48:40,025 INFO L933 BasicCegarLoop]: 34275 mSDtfsCounter, 109202 mSDsluCounter, 93621 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109202 SdHoareTripleChecker+Valid, 127896 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:40,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109202 Valid, 127896 Invalid, 2451 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [505 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-10 23:48:40,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235579 states. [2022-01-10 23:48:43,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235579 to 79536. [2022-01-10 23:48:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79536 states, 79526 states have (on average 1.8363176822674345) internal successors, (146035), 79535 states have internal predecessors, (146035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:44,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79536 states to 79536 states and 146035 transitions. [2022-01-10 23:48:44,004 INFO L78 Accepts]: Start accepts. Automaton has 79536 states and 146035 transitions. Word has length 60 [2022-01-10 23:48:44,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:44,004 INFO L470 AbstractCegarLoop]: Abstraction has 79536 states and 146035 transitions. [2022-01-10 23:48:44,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:44,004 INFO L276 IsEmpty]: Start isEmpty. Operand 79536 states and 146035 transitions. [2022-01-10 23:48:44,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:48:44,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:44,007 INFO L514 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] [2022-01-10 23:48:44,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:48:44,007 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:44,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:44,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1927769384, now seen corresponding path program 1 times [2022-01-10 23:48:44,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:44,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051793758] [2022-01-10 23:48:44,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:44,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:44,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:48:44,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:44,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051793758] [2022-01-10 23:48:44,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051793758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:44,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:44,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:48:44,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023493486] [2022-01-10 23:48:44,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:44,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:48:44,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:44,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:48:44,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:48:44,068 INFO L87 Difference]: Start difference. First operand 79536 states and 146035 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)