/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_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:30:57,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:30:57,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:30:57,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:30:57,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:30:57,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:30:57,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:30:57,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:30:57,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:30:57,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:30:57,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:30:57,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:30:57,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:30:57,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:30:57,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:30:57,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:30:57,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:30:57,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:30:57,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:30:57,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:30:57,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:30:57,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:30:57,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:30:57,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:30:57,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:30:57,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:30:57,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:30:57,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:30:57,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:30:57,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:30:57,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:30:57,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:30:57,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:30:57,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:30:57,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:30:57,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:30:57,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:30:57,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:30:57,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:30:57,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:30:57,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:30:57,608 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:30:57,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:30:57,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:30:57,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:30:57,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:30:57,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:30:57,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:30:57,624 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:30:57,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:30:57,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:30:57,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:30:57,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:30:57,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:30:57,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:30:57,625 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:30:57,625 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:30:57,625 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:30:57,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:30:57,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:30:57,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:30:57,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:30:57,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:30:57,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:30:57,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:30:57,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:30:57,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:30:57,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:30:57,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:30:57,626 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:30:57,626 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:30:57,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:30:57,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:30:57,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:30:57,627 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:30:57,627 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:30:57,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:30:57,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:30:57,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:30:57,837 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:30:57,837 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:30:57,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product19.cil.c [2022-01-11 05:30:57,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb47580c2/841a4ddd73b7436db08d72710bde50cb/FLAGe5e78d64b [2022-01-11 05:30:58,446 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:30:58,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product19.cil.c [2022-01-11 05:30:58,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb47580c2/841a4ddd73b7436db08d72710bde50cb/FLAGe5e78d64b [2022-01-11 05:30:58,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb47580c2/841a4ddd73b7436db08d72710bde50cb [2022-01-11 05:30:58,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:30:58,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:30:58,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:30:58,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:30:58,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:30:58,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:30:58" (1/1) ... [2022-01-11 05:30:58,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cb653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:58, skipping insertion in model container [2022-01-11 05:30:58,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:30:58" (1/1) ... [2022-01-11 05:30:58,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:30:59,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:30:59,567 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_spec14_product19.cil.c[49225,49238] [2022-01-11 05:30:59,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:59,619 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:30:59,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:30:59,696 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_spec14_product19.cil.c[49225,49238] [2022-01-11 05:30:59,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:59,717 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:30:59,767 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_spec14_product19.cil.c[49225,49238] [2022-01-11 05:30:59,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:59,801 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:30:59,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59 WrapperNode [2022-01-11 05:30:59,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:30:59,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:30:59,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:30:59,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:30:59,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,168 INFO L137 Inliner]: procedures = 93, calls = 333, calls flagged for inlining = 186, calls inlined = 691, statements flattened = 21272 [2022-01-11 05:31:00,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:31:00,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:31:00,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:31:00,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:31:00,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:31:00,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:31:00,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:31:00,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:31:00,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:31:00,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:31:00,652 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) [2022-01-11 05:31:00,731 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 [2022-01-11 05:31:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:31:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:31:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:31:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:31:00,881 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:31:00,882 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:31:07,971 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:31:08,013 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:31:08,013 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:31:08,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:08 BoogieIcfgContainer [2022-01-11 05:31:08,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:31:08,021 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:31:08,021 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:31:08,023 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:31:08,025 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:08" (1/1) ... [2022-01-11 05:31:09,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:31:09 BasicIcfg [2022-01-11 05:31:09,171 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:31:09,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:31:09,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:31:09,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:31:09,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:30:58" (1/4) ... [2022-01-11 05:31:09,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5f5caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:31:09, skipping insertion in model container [2022-01-11 05:31:09,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (2/4) ... [2022-01-11 05:31:09,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5f5caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:31:09, skipping insertion in model container [2022-01-11 05:31:09,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:08" (3/4) ... [2022-01-11 05:31:09,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5f5caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:31:09, skipping insertion in model container [2022-01-11 05:31:09,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:31:09" (4/4) ... [2022-01-11 05:31:09,177 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product19.cil.cTransformedIcfg [2022-01-11 05:31:09,182 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:31:09,182 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:31:09,260 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:31:09,265 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 [2022-01-11 05:31:09,265 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:31:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 6041 states, 6035 states have (on average 1.8671085335542668) internal successors, (11268), 6040 states have internal predecessors, (11268), 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) [2022-01-11 05:31:09,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 05:31:09,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:09,541 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] [2022-01-11 05:31:09,542 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:09,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:09,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1300747258, now seen corresponding path program 1 times [2022-01-11 05:31:09,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:09,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968995833] [2022-01-11 05:31:09,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:09,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:10,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:10,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:10,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968995833] [2022-01-11 05:31:10,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968995833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:10,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:10,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:10,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266273492] [2022-01-11 05:31:10,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:10,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:10,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:10,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:10,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:10,126 INFO L87 Difference]: Start difference. First operand has 6041 states, 6035 states have (on average 1.8671085335542668) internal successors, (11268), 6040 states have internal predecessors, (11268), 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 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-01-11 05:31:10,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:10,475 INFO L93 Difference]: Finished difference Result 14513 states and 27077 transitions. [2022-01-11 05:31:10,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:10,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-01-11 05:31:10,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:10,540 INFO L225 Difference]: With dead ends: 14513 [2022-01-11 05:31:10,540 INFO L226 Difference]: Without dead ends: 8471 [2022-01-11 05:31:10,562 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 [2022-01-11 05:31:10,569 INFO L933 BasicCegarLoop]: 15806 mSDtfsCounter, 11230 mSDsluCounter, 4569 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11230 SdHoareTripleChecker+Valid, 20375 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:10,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11230 Valid, 20375 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8471 states. [2022-01-11 05:31:10,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8471 to 6029. [2022-01-11 05:31:10,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6029 states, 6024 states have (on average 1.8660358565737052) internal successors, (11241), 6028 states have internal predecessors, (11241), 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) [2022-01-11 05:31:10,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6029 states to 6029 states and 11241 transitions. [2022-01-11 05:31:10,794 INFO L78 Accepts]: Start accepts. Automaton has 6029 states and 11241 transitions. Word has length 48 [2022-01-11 05:31:10,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:10,794 INFO L470 AbstractCegarLoop]: Abstraction has 6029 states and 11241 transitions. [2022-01-11 05:31:10,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-01-11 05:31:10,794 INFO L276 IsEmpty]: Start isEmpty. Operand 6029 states and 11241 transitions. [2022-01-11 05:31:10,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:31:10,796 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:10,797 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] [2022-01-11 05:31:10,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:31:10,797 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:10,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:10,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1687213308, now seen corresponding path program 1 times [2022-01-11 05:31:10,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:10,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538450118] [2022-01-11 05:31:10,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:10,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:10,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:10,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538450118] [2022-01-11 05:31:10,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538450118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:10,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:10,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:10,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712751848] [2022-01-11 05:31:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:10,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:10,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:10,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:10,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:10,908 INFO L87 Difference]: Start difference. First operand 6029 states and 11241 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) [2022-01-11 05:31:11,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:11,196 INFO L93 Difference]: Finished difference Result 14415 states and 26879 transitions. [2022-01-11 05:31:11,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:11,197 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 [2022-01-11 05:31:11,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:11,225 INFO L225 Difference]: With dead ends: 14415 [2022-01-11 05:31:11,225 INFO L226 Difference]: Without dead ends: 8435 [2022-01-11 05:31:11,235 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 [2022-01-11 05:31:11,237 INFO L933 BasicCegarLoop]: 15663 mSDtfsCounter, 11129 mSDsluCounter, 4506 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11129 SdHoareTripleChecker+Valid, 20169 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:11,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11129 Valid, 20169 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:11,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8435 states. [2022-01-11 05:31:11,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8435 to 6029. [2022-01-11 05:31:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6029 states, 6024 states have (on average 1.8618857901726427) internal successors, (11216), 6028 states have internal predecessors, (11216), 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) [2022-01-11 05:31:11,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6029 states to 6029 states and 11216 transitions. [2022-01-11 05:31:11,381 INFO L78 Accepts]: Start accepts. Automaton has 6029 states and 11216 transitions. Word has length 53 [2022-01-11 05:31:11,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:11,382 INFO L470 AbstractCegarLoop]: Abstraction has 6029 states and 11216 transitions. [2022-01-11 05:31:11,382 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) [2022-01-11 05:31:11,384 INFO L276 IsEmpty]: Start isEmpty. Operand 6029 states and 11216 transitions. [2022-01-11 05:31:11,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:31:11,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:11,393 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] [2022-01-11 05:31:11,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:31:11,393 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:11,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:11,393 INFO L85 PathProgramCache]: Analyzing trace with hash 786821711, now seen corresponding path program 1 times [2022-01-11 05:31:11,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:11,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207177647] [2022-01-11 05:31:11,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:11,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:11,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:11,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:11,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207177647] [2022-01-11 05:31:11,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207177647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:11,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:11,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:11,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276295991] [2022-01-11 05:31:11,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:11,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:11,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:11,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:11,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:11,523 INFO L87 Difference]: Start difference. First operand 6029 states and 11216 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) [2022-01-11 05:31:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:12,228 INFO L93 Difference]: Finished difference Result 25188 states and 46934 transitions. [2022-01-11 05:31:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:31:12,229 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 [2022-01-11 05:31:12,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:12,333 INFO L225 Difference]: With dead ends: 25188 [2022-01-11 05:31:12,333 INFO L226 Difference]: Without dead ends: 19187 [2022-01-11 05:31:12,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:31:12,356 INFO L933 BasicCegarLoop]: 31252 mSDtfsCounter, 33328 mSDsluCounter, 29229 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33328 SdHoareTripleChecker+Valid, 60481 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:12,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33328 Valid, 60481 Invalid, 69 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:12,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19187 states. [2022-01-11 05:31:12,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19187 to 6011. [2022-01-11 05:31:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6011 states, 6006 states have (on average 1.8634698634698634) internal successors, (11192), 6010 states have internal predecessors, (11192), 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) [2022-01-11 05:31:12,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6011 states to 6011 states and 11192 transitions. [2022-01-11 05:31:12,605 INFO L78 Accepts]: Start accepts. Automaton has 6011 states and 11192 transitions. Word has length 56 [2022-01-11 05:31:12,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:12,605 INFO L470 AbstractCegarLoop]: Abstraction has 6011 states and 11192 transitions. [2022-01-11 05:31:12,605 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) [2022-01-11 05:31:12,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6011 states and 11192 transitions. [2022-01-11 05:31:12,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:31:12,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:12,607 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] [2022-01-11 05:31:12,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:31:12,608 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:12,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash -618494552, now seen corresponding path program 1 times [2022-01-11 05:31:12,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:12,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407006254] [2022-01-11 05:31:12,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:12,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:12,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:12,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407006254] [2022-01-11 05:31:12,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407006254] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:12,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:12,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:12,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329620302] [2022-01-11 05:31:12,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:12,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:12,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:12,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:12,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:12,679 INFO L87 Difference]: Start difference. First operand 6011 states and 11192 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2022-01-11 05:31:13,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:13,282 INFO L93 Difference]: Finished difference Result 23903 states and 44547 transitions. [2022-01-11 05:31:13,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:31:13,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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 [2022-01-11 05:31:13,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:13,323 INFO L225 Difference]: With dead ends: 23903 [2022-01-11 05:31:13,324 INFO L226 Difference]: Without dead ends: 17914 [2022-01-11 05:31:13,340 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 [2022-01-11 05:31:13,346 INFO L933 BasicCegarLoop]: 17776 mSDtfsCounter, 33385 mSDsluCounter, 33321 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33385 SdHoareTripleChecker+Valid, 51097 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:13,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33385 Valid, 51097 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:13,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17914 states. [2022-01-11 05:31:13,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17914 to 6015. [2022-01-11 05:31:13,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6015 states, 6010 states have (on average 1.862728785357737) internal successors, (11195), 6014 states have internal predecessors, (11195), 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) [2022-01-11 05:31:13,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6015 states to 6015 states and 11195 transitions. [2022-01-11 05:31:13,664 INFO L78 Accepts]: Start accepts. Automaton has 6015 states and 11195 transitions. Word has length 58 [2022-01-11 05:31:13,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:13,666 INFO L470 AbstractCegarLoop]: Abstraction has 6015 states and 11195 transitions. [2022-01-11 05:31:13,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2022-01-11 05:31:13,666 INFO L276 IsEmpty]: Start isEmpty. Operand 6015 states and 11195 transitions. [2022-01-11 05:31:13,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:31:13,669 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:13,669 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] [2022-01-11 05:31:13,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:31:13,669 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:13,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:13,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1801841849, now seen corresponding path program 1 times [2022-01-11 05:31:13,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:13,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902668477] [2022-01-11 05:31:13,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:13,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:13,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:13,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:13,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902668477] [2022-01-11 05:31:13,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902668477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:13,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:13,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:31:13,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363251212] [2022-01-11 05:31:13,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:13,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:31:13,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:13,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:31:13,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:31:13,777 INFO L87 Difference]: Start difference. First operand 6015 states and 11195 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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) [2022-01-11 05:31:14,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:14,625 INFO L93 Difference]: Finished difference Result 24119 states and 44930 transitions. [2022-01-11 05:31:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:31:14,625 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 [2022-01-11 05:31:14,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:14,667 INFO L225 Difference]: With dead ends: 24119 [2022-01-11 05:31:14,668 INFO L226 Difference]: Without dead ends: 18119 [2022-01-11 05:31:14,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:31:14,683 INFO L933 BasicCegarLoop]: 33732 mSDtfsCounter, 40348 mSDsluCounter, 40805 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40348 SdHoareTripleChecker+Valid, 74537 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:14,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40348 Valid, 74537 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:14,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18119 states. [2022-01-11 05:31:14,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18119 to 6007. [2022-01-11 05:31:14,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6007 states, 6002 states have (on average 1.8632122625791403) internal successors, (11183), 6006 states have internal predecessors, (11183), 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) [2022-01-11 05:31:14,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6007 states to 6007 states and 11183 transitions. [2022-01-11 05:31:14,929 INFO L78 Accepts]: Start accepts. Automaton has 6007 states and 11183 transitions. Word has length 58 [2022-01-11 05:31:14,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:14,929 INFO L470 AbstractCegarLoop]: Abstraction has 6007 states and 11183 transitions. [2022-01-11 05:31:14,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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) [2022-01-11 05:31:14,929 INFO L276 IsEmpty]: Start isEmpty. Operand 6007 states and 11183 transitions. [2022-01-11 05:31:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:31:14,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:14,931 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] [2022-01-11 05:31:14,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:31:14,931 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:14,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:14,932 INFO L85 PathProgramCache]: Analyzing trace with hash -329657759, now seen corresponding path program 1 times [2022-01-11 05:31:14,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:14,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571093032] [2022-01-11 05:31:14,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:14,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:15,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:15,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571093032] [2022-01-11 05:31:15,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571093032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:15,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:15,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:15,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279369590] [2022-01-11 05:31:15,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:15,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:15,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:15,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:15,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:15,005 INFO L87 Difference]: Start difference. First operand 6007 states and 11183 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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) [2022-01-11 05:31:15,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:15,432 INFO L93 Difference]: Finished difference Result 16792 states and 31285 transitions. [2022-01-11 05:31:15,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:31:15,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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 [2022-01-11 05:31:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:15,457 INFO L225 Difference]: With dead ends: 16792 [2022-01-11 05:31:15,457 INFO L226 Difference]: Without dead ends: 10813 [2022-01-11 05:31:15,468 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 [2022-01-11 05:31:15,469 INFO L933 BasicCegarLoop]: 11145 mSDtfsCounter, 42409 mSDsluCounter, 13461 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42409 SdHoareTripleChecker+Valid, 24606 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:15,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42409 Valid, 24606 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:15,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10813 states. [2022-01-11 05:31:15,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10813 to 6009. [2022-01-11 05:31:15,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6009 states, 6004 states have (on average 1.8627581612258495) internal successors, (11184), 6008 states have internal predecessors, (11184), 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) [2022-01-11 05:31:15,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6009 states to 6009 states and 11184 transitions. [2022-01-11 05:31:15,712 INFO L78 Accepts]: Start accepts. Automaton has 6009 states and 11184 transitions. Word has length 59 [2022-01-11 05:31:15,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:15,712 INFO L470 AbstractCegarLoop]: Abstraction has 6009 states and 11184 transitions. [2022-01-11 05:31:15,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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) [2022-01-11 05:31:15,712 INFO L276 IsEmpty]: Start isEmpty. Operand 6009 states and 11184 transitions. [2022-01-11 05:31:15,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:31:15,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:15,714 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] [2022-01-11 05:31:15,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:31:15,714 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:15,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:15,715 INFO L85 PathProgramCache]: Analyzing trace with hash -3177534, now seen corresponding path program 1 times [2022-01-11 05:31:15,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:15,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424959219] [2022-01-11 05:31:15,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:15,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:15,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:15,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:15,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424959219] [2022-01-11 05:31:15,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424959219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:15,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:15,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:15,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611227675] [2022-01-11 05:31:15,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:15,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:15,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:15,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:15,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:15,764 INFO L87 Difference]: Start difference. First operand 6009 states and 11184 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 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) [2022-01-11 05:31:17,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:17,489 INFO L93 Difference]: Finished difference Result 16972 states and 31640 transitions. [2022-01-11 05:31:17,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:31:17,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 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 [2022-01-11 05:31:17,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:17,511 INFO L225 Difference]: With dead ends: 16972 [2022-01-11 05:31:17,511 INFO L226 Difference]: Without dead ends: 10999 [2022-01-11 05:31:17,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:17,519 INFO L933 BasicCegarLoop]: 11154 mSDtfsCounter, 29751 mSDsluCounter, 9253 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29751 SdHoareTripleChecker+Valid, 20407 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:17,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29751 Valid, 20407 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-11 05:31:17,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10999 states. [2022-01-11 05:31:17,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10999 to 6009. [2022-01-11 05:31:17,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6009 states, 6004 states have (on average 1.8354430379746836) internal successors, (11020), 6008 states have internal predecessors, (11020), 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) [2022-01-11 05:31:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6009 states to 6009 states and 11020 transitions. [2022-01-11 05:31:17,704 INFO L78 Accepts]: Start accepts. Automaton has 6009 states and 11020 transitions. Word has length 60 [2022-01-11 05:31:17,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:17,704 INFO L470 AbstractCegarLoop]: Abstraction has 6009 states and 11020 transitions. [2022-01-11 05:31:17,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 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) [2022-01-11 05:31:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 6009 states and 11020 transitions. [2022-01-11 05:31:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 05:31:17,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:17,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:17,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:31:17,706 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash -2141631461, now seen corresponding path program 1 times [2022-01-11 05:31:17,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:17,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251362260] [2022-01-11 05:31:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:17,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:17,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:17,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:17,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251362260] [2022-01-11 05:31:17,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251362260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:17,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:17,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:17,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479305879] [2022-01-11 05:31:17,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:17,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:31:17,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:17,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:31:17,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:31:17,795 INFO L87 Difference]: Start difference. First operand 6009 states and 11020 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 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) [2022-01-11 05:31:23,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:23,955 INFO L93 Difference]: Finished difference Result 63844 states and 118353 transitions. [2022-01-11 05:31:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:31:23,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 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 72 [2022-01-11 05:31:23,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:24,070 INFO L225 Difference]: With dead ends: 63844 [2022-01-11 05:31:24,070 INFO L226 Difference]: Without dead ends: 57889 [2022-01-11 05:31:24,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-11 05:31:24,092 INFO L933 BasicCegarLoop]: 53551 mSDtfsCounter, 69996 mSDsluCounter, 165071 mSDsCounter, 0 mSdLazyCounter, 4952 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69996 SdHoareTripleChecker+Valid, 218622 SdHoareTripleChecker+Invalid, 5357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 4952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:24,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69996 Valid, 218622 Invalid, 5357 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [405 Valid, 4952 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-11 05:31:24,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57889 states. [2022-01-11 05:31:24,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57889 to 11910. [2022-01-11 05:31:24,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11910 states, 11905 states have (on average 1.8363712725745485) internal successors, (21862), 11909 states have internal predecessors, (21862), 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) [2022-01-11 05:31:24,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11910 states to 11910 states and 21862 transitions. [2022-01-11 05:31:24,782 INFO L78 Accepts]: Start accepts. Automaton has 11910 states and 21862 transitions. Word has length 72 [2022-01-11 05:31:24,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:24,782 INFO L470 AbstractCegarLoop]: Abstraction has 11910 states and 21862 transitions. [2022-01-11 05:31:24,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 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) [2022-01-11 05:31:24,782 INFO L276 IsEmpty]: Start isEmpty. Operand 11910 states and 21862 transitions. [2022-01-11 05:31:24,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 05:31:24,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:24,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:24,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:31:24,785 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:24,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:24,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1798600091, now seen corresponding path program 1 times [2022-01-11 05:31:24,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:24,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753731949] [2022-01-11 05:31:24,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:24,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:24,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:24,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753731949] [2022-01-11 05:31:24,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753731949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:24,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:24,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:24,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642166511] [2022-01-11 05:31:24,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:24,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:24,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:24,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:24,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:24,854 INFO L87 Difference]: Start difference. First operand 11910 states and 21862 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-01-11 05:31:29,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:29,254 INFO L93 Difference]: Finished difference Result 62505 states and 114688 transitions. [2022-01-11 05:31:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:31:29,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 74 [2022-01-11 05:31:29,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:29,357 INFO L225 Difference]: With dead ends: 62505 [2022-01-11 05:31:29,358 INFO L226 Difference]: Without dead ends: 50692 [2022-01-11 05:31:29,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:31:29,386 INFO L933 BasicCegarLoop]: 24203 mSDtfsCounter, 48536 mSDsluCounter, 44876 mSDsCounter, 0 mSdLazyCounter, 2515 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48536 SdHoareTripleChecker+Valid, 69079 SdHoareTripleChecker+Invalid, 2889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:29,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48536 Valid, 69079 Invalid, 2889 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [374 Valid, 2515 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-11 05:31:29,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50692 states. [2022-01-11 05:31:30,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50692 to 16716. [2022-01-11 05:31:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16716 states, 16711 states have (on average 1.834121237508228) internal successors, (30650), 16715 states have internal predecessors, (30650), 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) [2022-01-11 05:31:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16716 states to 16716 states and 30650 transitions. [2022-01-11 05:31:30,308 INFO L78 Accepts]: Start accepts. Automaton has 16716 states and 30650 transitions. Word has length 74 [2022-01-11 05:31:30,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:30,309 INFO L470 AbstractCegarLoop]: Abstraction has 16716 states and 30650 transitions. [2022-01-11 05:31:30,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-01-11 05:31:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 16716 states and 30650 transitions. [2022-01-11 05:31:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:31:30,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:30,314 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:30,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:31:30,314 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:30,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:30,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1740634406, now seen corresponding path program 1 times [2022-01-11 05:31:30,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:30,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936663603] [2022-01-11 05:31:30,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:30,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:30,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:30,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:30,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936663603] [2022-01-11 05:31:30,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936663603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:30,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:30,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:30,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942354838] [2022-01-11 05:31:30,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:30,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:30,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:30,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:30,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:30,386 INFO L87 Difference]: Start difference. First operand 16716 states and 30650 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 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) [2022-01-11 05:31:34,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:34,806 INFO L93 Difference]: Finished difference Result 68242 states and 125976 transitions. [2022-01-11 05:31:34,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:31:34,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2022-01-11 05:31:34,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:34,903 INFO L225 Difference]: With dead ends: 68242 [2022-01-11 05:31:34,903 INFO L226 Difference]: Without dead ends: 51584 [2022-01-11 05:31:34,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:34,929 INFO L933 BasicCegarLoop]: 32935 mSDtfsCounter, 18567 mSDsluCounter, 31011 mSDsCounter, 0 mSdLazyCounter, 3183 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18567 SdHoareTripleChecker+Valid, 63946 SdHoareTripleChecker+Invalid, 3473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 3183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:34,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18567 Valid, 63946 Invalid, 3473 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [290 Valid, 3183 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-11 05:31:34,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51584 states. [2022-01-11 05:31:36,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51584 to 28630. [2022-01-11 05:31:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28630 states, 28625 states have (on average 1.8181310043668122) internal successors, (52044), 28629 states have internal predecessors, (52044), 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) [2022-01-11 05:31:36,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28630 states to 28630 states and 52044 transitions. [2022-01-11 05:31:36,367 INFO L78 Accepts]: Start accepts. Automaton has 28630 states and 52044 transitions. Word has length 75 [2022-01-11 05:31:36,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:36,367 INFO L470 AbstractCegarLoop]: Abstraction has 28630 states and 52044 transitions. [2022-01-11 05:31:36,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 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) [2022-01-11 05:31:36,368 INFO L276 IsEmpty]: Start isEmpty. Operand 28630 states and 52044 transitions. [2022-01-11 05:31:36,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:31:36,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:36,370 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:36,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:31:36,371 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:36,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:36,371 INFO L85 PathProgramCache]: Analyzing trace with hash 194736895, now seen corresponding path program 1 times [2022-01-11 05:31:36,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:36,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410438709] [2022-01-11 05:31:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:36,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:36,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:36,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410438709] [2022-01-11 05:31:36,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410438709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:36,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:36,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:36,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554955412] [2022-01-11 05:31:36,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:36,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:36,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:36,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:36,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:36,489 INFO L87 Difference]: Start difference. First operand 28630 states and 52044 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2022-01-11 05:31:37,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:37,796 INFO L93 Difference]: Finished difference Result 59486 states and 108226 transitions. [2022-01-11 05:31:37,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:31:37,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 75 [2022-01-11 05:31:37,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:37,843 INFO L225 Difference]: With dead ends: 59486 [2022-01-11 05:31:37,843 INFO L226 Difference]: Without dead ends: 30881 [2022-01-11 05:31:37,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:31:37,874 INFO L933 BasicCegarLoop]: 12515 mSDtfsCounter, 33476 mSDsluCounter, 19383 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33476 SdHoareTripleChecker+Valid, 31898 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:37,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33476 Valid, 31898 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30881 states. [2022-01-11 05:31:38,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30881 to 18667. [2022-01-11 05:31:38,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18667 states, 18662 states have (on average 1.8182938591790805) internal successors, (33933), 18666 states have internal predecessors, (33933), 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) [2022-01-11 05:31:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18667 states to 18667 states and 33933 transitions. [2022-01-11 05:31:38,910 INFO L78 Accepts]: Start accepts. Automaton has 18667 states and 33933 transitions. Word has length 75 [2022-01-11 05:31:38,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:38,910 INFO L470 AbstractCegarLoop]: Abstraction has 18667 states and 33933 transitions. [2022-01-11 05:31:38,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2022-01-11 05:31:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 18667 states and 33933 transitions. [2022-01-11 05:31:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-11 05:31:38,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:38,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:38,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:31:38,913 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:38,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:38,913 INFO L85 PathProgramCache]: Analyzing trace with hash 879452596, now seen corresponding path program 1 times [2022-01-11 05:31:38,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:38,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910344323] [2022-01-11 05:31:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:38,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:38,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:38,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:38,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910344323] [2022-01-11 05:31:38,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910344323] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:38,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:38,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:38,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024963416] [2022-01-11 05:31:38,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:38,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:38,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:38,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:38,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:38,999 INFO L87 Difference]: Start difference. First operand 18667 states and 33933 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 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) [2022-01-11 05:31:44,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:44,590 INFO L93 Difference]: Finished difference Result 151476 states and 275846 transitions. [2022-01-11 05:31:44,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:31:44,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 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 77 [2022-01-11 05:31:44,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:44,887 INFO L225 Difference]: With dead ends: 151476 [2022-01-11 05:31:44,887 INFO L226 Difference]: Without dead ends: 132855 [2022-01-11 05:31:45,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:31:45,055 INFO L933 BasicCegarLoop]: 20360 mSDtfsCounter, 74136 mSDsluCounter, 53596 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74136 SdHoareTripleChecker+Valid, 73956 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:45,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74136 Valid, 73956 Invalid, 430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [136 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:31:45,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132855 states. [2022-01-11 05:31:47,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132855 to 36220. [2022-01-11 05:31:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36220 states, 36215 states have (on average 1.8181140411431727) internal successors, (65843), 36219 states have internal predecessors, (65843), 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) [2022-01-11 05:31:47,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36220 states to 36220 states and 65843 transitions. [2022-01-11 05:31:47,755 INFO L78 Accepts]: Start accepts. Automaton has 36220 states and 65843 transitions. Word has length 77 [2022-01-11 05:31:47,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:47,756 INFO L470 AbstractCegarLoop]: Abstraction has 36220 states and 65843 transitions. [2022-01-11 05:31:47,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 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) [2022-01-11 05:31:47,756 INFO L276 IsEmpty]: Start isEmpty. Operand 36220 states and 65843 transitions. [2022-01-11 05:31:47,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-11 05:31:47,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:47,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:47,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:31:47,758 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:47,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:47,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1465214445, now seen corresponding path program 1 times [2022-01-11 05:31:47,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:47,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239635841] [2022-01-11 05:31:47,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:47,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:47,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:47,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239635841] [2022-01-11 05:31:47,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239635841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:47,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:47,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:47,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923005416] [2022-01-11 05:31:47,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:47,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:31:47,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:47,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:31:47,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:31:47,817 INFO L87 Difference]: Start difference. First operand 36220 states and 65843 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-01-11 05:31:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:54,191 INFO L93 Difference]: Finished difference Result 105180 states and 192657 transitions. [2022-01-11 05:31:54,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:31:54,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 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 77 [2022-01-11 05:31:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:54,352 INFO L225 Difference]: With dead ends: 105180 [2022-01-11 05:31:54,353 INFO L226 Difference]: Without dead ends: 85625 [2022-01-11 05:31:54,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-11 05:31:54,384 INFO L933 BasicCegarLoop]: 23366 mSDtfsCounter, 62628 mSDsluCounter, 75052 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62628 SdHoareTripleChecker+Valid, 98418 SdHoareTripleChecker+Invalid, 2048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:54,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62628 Valid, 98418 Invalid, 2048 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [356 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-11 05:31:54,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85625 states. [2022-01-11 05:31:56,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85625 to 36220. [2022-01-11 05:31:56,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36220 states, 36215 states have (on average 1.8167886234985504) internal successors, (65795), 36219 states have internal predecessors, (65795), 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) [2022-01-11 05:31:56,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36220 states to 36220 states and 65795 transitions. [2022-01-11 05:31:56,689 INFO L78 Accepts]: Start accepts. Automaton has 36220 states and 65795 transitions. Word has length 77 [2022-01-11 05:31:56,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:56,690 INFO L470 AbstractCegarLoop]: Abstraction has 36220 states and 65795 transitions. [2022-01-11 05:31:56,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-01-11 05:31:56,690 INFO L276 IsEmpty]: Start isEmpty. Operand 36220 states and 65795 transitions. [2022-01-11 05:31:56,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:31:56,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:56,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:56,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:31:56,692 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:56,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:56,694 INFO L85 PathProgramCache]: Analyzing trace with hash -213791765, now seen corresponding path program 1 times [2022-01-11 05:31:56,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:56,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714592102] [2022-01-11 05:31:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:56,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:56,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:56,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714592102] [2022-01-11 05:31:56,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714592102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:56,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:56,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:56,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365201439] [2022-01-11 05:31:56,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:56,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:56,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:56,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:56,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:56,764 INFO L87 Difference]: Start difference. First operand 36220 states and 65795 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-01-11 05:31:59,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:59,837 INFO L93 Difference]: Finished difference Result 75692 states and 136782 transitions. [2022-01-11 05:31:59,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:31:59,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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 79 [2022-01-11 05:31:59,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:59,916 INFO L225 Difference]: With dead ends: 75692 [2022-01-11 05:31:59,917 INFO L226 Difference]: Without dead ends: 56319 [2022-01-11 05:31:59,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:31:59,936 INFO L933 BasicCegarLoop]: 19200 mSDtfsCounter, 15851 mSDsluCounter, 40853 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15851 SdHoareTripleChecker+Valid, 60053 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:59,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15851 Valid, 60053 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:31:59,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56319 states.