/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/eca-rers2012/Problem14_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 04:35:41,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 04:35:41,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 04:35:41,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 04:35:41,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 04:35:41,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 04:35:41,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 04:35:41,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 04:35:41,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 04:35:41,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 04:35:41,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 04:35:41,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 04:35:41,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 04:35:41,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 04:35:41,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 04:35:41,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 04:35:41,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 04:35:41,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 04:35:41,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 04:35:41,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 04:35:41,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 04:35:41,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 04:35:41,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 04:35:41,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 04:35:41,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 04:35:41,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 04:35:41,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 04:35:41,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 04:35:41,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 04:35:41,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 04:35:41,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 04:35:41,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 04:35:41,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 04:35:41,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 04:35:41,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 04:35:41,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 04:35:41,176 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 04:35:41,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 04:35:41,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 04:35:41,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 04:35:41,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 04:35:41,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 04:35:41,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 04:35:41,189 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 04:35:41,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 04:35:41,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 04:35:41,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 04:35:41,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 04:35:41,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 04:35:41,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 04:35:41,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 04:35:41,190 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 04:35:41,190 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 04:35:41,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 04:35:41,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 04:35:41,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 04:35:41,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 04:35:41,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 04:35:41,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 04:35:41,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 04:35:41,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 04:35:41,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 04:35:41,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 04:35:41,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 04:35:41,191 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 04:35:41,192 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 04:35:41,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 04:35:41,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 04:35:41,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 04:35:41,192 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 04:35:41,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 04:35:41,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 04:35:41,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 04:35:41,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 04:35:41,404 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 04:35:41,405 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 04:35:41,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label53.c [2022-01-11 04:35:41,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce178ed7/04995a6becc543cfa9e7647fac2e6066/FLAGd65268b24 [2022-01-11 04:35:41,900 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 04:35:41,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label53.c [2022-01-11 04:35:41,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce178ed7/04995a6becc543cfa9e7647fac2e6066/FLAGd65268b24 [2022-01-11 04:35:41,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce178ed7/04995a6becc543cfa9e7647fac2e6066 [2022-01-11 04:35:41,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 04:35:41,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 04:35:41,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 04:35:41,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 04:35:41,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 04:35:41,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 04:35:41" (1/1) ... [2022-01-11 04:35:41,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@390a5a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:41, skipping insertion in model container [2022-01-11 04:35:41,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 04:35:41" (1/1) ... [2022-01-11 04:35:41,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 04:35:41,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 04:35:42,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label53.c[5103,5116] [2022-01-11 04:35:42,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 04:35:42,259 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 04:35:42,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label53.c[5103,5116] [2022-01-11 04:35:42,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 04:35:42,372 INFO L208 MainTranslator]: Completed translation [2022-01-11 04:35:42,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42 WrapperNode [2022-01-11 04:35:42,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 04:35:42,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 04:35:42,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 04:35:42,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 04:35:42,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (1/1) ... [2022-01-11 04:35:42,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (1/1) ... [2022-01-11 04:35:42,445 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 856 [2022-01-11 04:35:42,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 04:35:42,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 04:35:42,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 04:35:42,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 04:35:42,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (1/1) ... [2022-01-11 04:35:42,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (1/1) ... [2022-01-11 04:35:42,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (1/1) ... [2022-01-11 04:35:42,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (1/1) ... [2022-01-11 04:35:42,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (1/1) ... [2022-01-11 04:35:42,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (1/1) ... [2022-01-11 04:35:42,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (1/1) ... [2022-01-11 04:35:42,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 04:35:42,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 04:35:42,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 04:35:42,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 04:35:42,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (1/1) ... [2022-01-11 04:35:42,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 04:35:42,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 04:35:42,535 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 04:35:42,555 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 04:35:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 04:35:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 04:35:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 04:35:42,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 04:35:42,625 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 04:35:42,626 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 04:35:44,781 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 04:35:44,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 04:35:44,788 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 04:35:44,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 04:35:44 BoogieIcfgContainer [2022-01-11 04:35:44,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 04:35:44,793 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 04:35:44,793 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 04:35:44,794 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 04:35:44,796 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 04:35:44" (1/1) ... [2022-01-11 04:35:45,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 04:35:45 BasicIcfg [2022-01-11 04:35:45,060 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 04:35:45,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 04:35:45,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 04:35:45,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 04:35:45,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 04:35:41" (1/4) ... [2022-01-11 04:35:45,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db7771e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 04:35:45, skipping insertion in model container [2022-01-11 04:35:45,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 04:35:42" (2/4) ... [2022-01-11 04:35:45,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db7771e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 04:35:45, skipping insertion in model container [2022-01-11 04:35:45,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 04:35:44" (3/4) ... [2022-01-11 04:35:45,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db7771e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 04:35:45, skipping insertion in model container [2022-01-11 04:35:45,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 04:35:45" (4/4) ... [2022-01-11 04:35:45,066 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label53.cTransformedIcfg [2022-01-11 04:35:45,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 04:35:45,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 04:35:45,115 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 04:35:45,121 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 04:35:45,121 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 04:35:45,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 04:35:45,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-11 04:35:45,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 04:35:45,142 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] [2022-01-11 04:35:45,142 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 04:35:45,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 04:35:45,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1766044543, now seen corresponding path program 1 times [2022-01-11 04:35:45,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 04:35:45,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63817792] [2022-01-11 04:35:45,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 04:35:45,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 04:35:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 04:35:45,433 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 04:35:45,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 04:35:45,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63817792] [2022-01-11 04:35:45,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63817792] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 04:35:45,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 04:35:45,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 04:35:45,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302038852] [2022-01-11 04:35:45,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 04:35:45,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 04:35:45,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 04:35:45,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 04:35:45,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 04:35:45,467 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 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 04:35:47,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:35:49,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:35:52,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:35:54,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:35:56,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:35:58,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:00,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:02,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:04,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:07,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:09,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:11,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:13,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:15,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:17,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:19,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:22,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:24,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:26,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:28,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:30,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:32,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:34,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:37,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:39,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:41,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:43,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:45,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:47,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:49,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:52,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:54,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:56,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:36:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 04:36:56,651 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2022-01-11 04:36:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 04:36:56,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 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 49 [2022-01-11 04:36:56,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 04:36:56,668 INFO L225 Difference]: With dead ends: 669 [2022-01-11 04:36:56,668 INFO L226 Difference]: Without dead ends: 360 [2022-01-11 04:36:56,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 04:36:56,673 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 161 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 187 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.1s IncrementalHoareTripleChecker+Time [2022-01-11 04:36:56,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 94 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 478 Invalid, 33 Unknown, 0 Unchecked, 71.1s Time] [2022-01-11 04:36:56,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-01-11 04:36:56,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2022-01-11 04:36:56,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 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 04:36:56,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2022-01-11 04:36:56,712 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 49 [2022-01-11 04:36:56,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 04:36:56,712 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2022-01-11 04:36:56,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 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 04:36:56,713 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2022-01-11 04:36:56,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-11 04:36:56,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 04:36:56,715 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 04:36:56,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 04:36:56,716 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 04:36:56,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 04:36:56,716 INFO L85 PathProgramCache]: Analyzing trace with hash 853561546, now seen corresponding path program 1 times [2022-01-11 04:36:56,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 04:36:56,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373815649] [2022-01-11 04:36:56,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 04:36:56,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 04:36:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 04:36:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 04:36:56,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 04:36:56,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373815649] [2022-01-11 04:36:56,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373815649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 04:36:56,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 04:36:56,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 04:36:56,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724632334] [2022-01-11 04:36:56,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 04:36:56,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 04:36:56,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 04:36:56,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 04:36:56,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 04:36:56,886 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 04:36:59,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:37:01,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 04:37:03,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []