/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_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:07:05,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:07:05,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:07:05,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:07:05,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:07:05,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:07:05,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:07:05,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:07:05,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:07:05,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:07:05,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:07:05,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:07:05,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:07:05,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:07:05,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:07:05,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:07:05,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:07:05,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:07:05,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:07:05,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:07:05,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:07:05,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:07:05,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:07:05,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:07:05,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:07:05,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:07:05,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:07:05,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:07:05,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:07:05,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:07:05,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:07:05,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:07:05,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:07:05,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:07:05,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:07:05,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:07:05,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:07:05,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:07:05,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:07:05,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:07:05,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:07:05,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:07:05,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:07:05,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:07:05,965 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:07:05,965 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:07:05,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:07:05,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:07:05,966 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:07:05,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:07:05,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:07:05,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:07:05,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:07:05,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:07:05,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:07:05,968 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:07:05,968 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:07:05,969 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:07:05,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:07:05,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:07:05,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:07:05,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:07:05,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:07:05,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:07:05,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:07:05,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:07:05,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:07:05,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:07:05,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:07:05,971 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:07:05,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:07:05,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:07:05,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:07:05,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:07:05,973 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:07:05,973 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:07:06,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:07:06,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:07:06,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:07:06,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:07:06,208 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:07:06,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c [2022-01-10 12:07:06,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18e70f823/ae91848125494d89bf3d0a5302bb6484/FLAGbdf82c5a9 [2022-01-10 12:07:06,853 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:07:06,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c [2022-01-10 12:07:06,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18e70f823/ae91848125494d89bf3d0a5302bb6484/FLAGbdf82c5a9 [2022-01-10 12:07:07,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18e70f823/ae91848125494d89bf3d0a5302bb6484 [2022-01-10 12:07:07,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:07:07,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:07:07,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:07:07,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:07:07,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:07:07,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:07,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51dcbfd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07, skipping insertion in model container [2022-01-10 12:07:07,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:07,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:07:07,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:07:07,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c[5770,5783] [2022-01-10 12:07:07,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:07:07,653 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:07:07,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:07:07,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c[5770,5783] [2022-01-10 12:07:07,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:07:07,807 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:07:07,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c[5770,5783] [2022-01-10 12:07:07,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:07:07,933 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:07:07,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07 WrapperNode [2022-01-10 12:07:07,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:07:07,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:07:07,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:07:07,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:07:07,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:07,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:08,266 INFO L137 Inliner]: procedures = 90, calls = 338, calls flagged for inlining = 191, calls inlined = 673, statements flattened = 21629 [2022-01-10 12:07:08,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:07:08,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:07:08,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:07:08,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:07:08,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:08,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:08,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:08,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:08,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:08,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:08,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:08,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:07:08,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:07:08,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:07:08,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:07:08,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (1/1) ... [2022-01-10 12:07:08,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:07:08,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:07:08,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:07:08,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:07:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:07:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:07:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:07:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:07:09,104 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:07:09,121 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:07:17,627 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:07:17,682 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:07:17,683 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:07:17,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:17 BoogieIcfgContainer [2022-01-10 12:07:17,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:07:17,692 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:07:17,692 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:07:17,694 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:07:17,697 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:17" (1/1) ... [2022-01-10 12:07:19,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:07:19 BasicIcfg [2022-01-10 12:07:19,421 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:07:19,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:07:19,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:07:19,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:07:19,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:07:07" (1/4) ... [2022-01-10 12:07:19,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adfe0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:07:19, skipping insertion in model container [2022-01-10 12:07:19,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:07" (2/4) ... [2022-01-10 12:07:19,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adfe0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:07:19, skipping insertion in model container [2022-01-10 12:07:19,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:17" (3/4) ... [2022-01-10 12:07:19,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adfe0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:07:19, skipping insertion in model container [2022-01-10 12:07:19,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:07:19" (4/4) ... [2022-01-10 12:07:19,428 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product17.cil.cTransformedIcfg [2022-01-10 12:07:19,433 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:07:19,434 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 12:07:19,509 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:07:19,514 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:07:19,515 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 12:07:19,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 6213 states, 6202 states have (on average 1.8735891647855532) internal successors, (11620), 6212 states have internal predecessors, (11620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:19,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 12:07:19,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:19,665 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] [2022-01-10 12:07:19,665 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:19,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:19,671 INFO L85 PathProgramCache]: Analyzing trace with hash 963223256, now seen corresponding path program 1 times [2022-01-10 12:07:19,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:19,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577251491] [2022-01-10 12:07:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:19,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:20,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:20,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:20,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577251491] [2022-01-10 12:07:20,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577251491] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:20,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:20,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:07:20,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596335440] [2022-01-10 12:07:20,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:20,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:07:20,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:20,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:07:20,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:07:20,215 INFO L87 Difference]: Start difference. First operand has 6213 states, 6202 states have (on average 1.8735891647855532) internal successors, (11620), 6212 states have internal predecessors, (11620), 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 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:21,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:21,053 INFO L93 Difference]: Finished difference Result 16220 states and 30298 transitions. [2022-01-10 12:07:21,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:07:21,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 46 [2022-01-10 12:07:21,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:21,142 INFO L225 Difference]: With dead ends: 16220 [2022-01-10 12:07:21,142 INFO L226 Difference]: Without dead ends: 10964 [2022-01-10 12:07:21,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:07:21,175 INFO L933 BasicCegarLoop]: 12474 mSDtfsCounter, 24551 mSDsluCounter, 16327 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24551 SdHoareTripleChecker+Valid, 28801 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:21,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24551 Valid, 28801 Invalid, 70 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:07:21,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10964 states. [2022-01-10 12:07:21,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10964 to 6206. [2022-01-10 12:07:21,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6206 states, 6196 states have (on average 1.8718528082633958) internal successors, (11598), 6205 states have internal predecessors, (11598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:21,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6206 states to 6206 states and 11598 transitions. [2022-01-10 12:07:21,657 INFO L78 Accepts]: Start accepts. Automaton has 6206 states and 11598 transitions. Word has length 46 [2022-01-10 12:07:21,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:21,658 INFO L470 AbstractCegarLoop]: Abstraction has 6206 states and 11598 transitions. [2022-01-10 12:07:21,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 6206 states and 11598 transitions. [2022-01-10 12:07:21,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 12:07:21,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:21,662 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] [2022-01-10 12:07:21,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:07:21,663 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:21,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:21,666 INFO L85 PathProgramCache]: Analyzing trace with hash 920957569, now seen corresponding path program 1 times [2022-01-10 12:07:21,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:21,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590354028] [2022-01-10 12:07:21,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:21,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:21,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:21,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:21,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590354028] [2022-01-10 12:07:21,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590354028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:21,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:21,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:21,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556503102] [2022-01-10 12:07:21,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:21,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:21,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:21,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:21,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:21,869 INFO L87 Difference]: Start difference. First operand 6206 states and 11598 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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) [2022-01-10 12:07:23,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:23,420 INFO L93 Difference]: Finished difference Result 15754 states and 29426 transitions. [2022-01-10 12:07:23,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:23,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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 [2022-01-10 12:07:23,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:23,471 INFO L225 Difference]: With dead ends: 15754 [2022-01-10 12:07:23,472 INFO L226 Difference]: Without dead ends: 10544 [2022-01-10 12:07:23,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:23,485 INFO L933 BasicCegarLoop]: 19083 mSDtfsCounter, 10141 mSDsluCounter, 8773 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10141 SdHoareTripleChecker+Valid, 27856 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:23,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10141 Valid, 27856 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 12:07:23,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2022-01-10 12:07:23,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 10488. [2022-01-10 12:07:23,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10488 states, 10478 states have (on average 1.8511166253101736) internal successors, (19396), 10487 states have internal predecessors, (19396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:23,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10488 states to 10488 states and 19396 transitions. [2022-01-10 12:07:23,954 INFO L78 Accepts]: Start accepts. Automaton has 10488 states and 19396 transitions. Word has length 49 [2022-01-10 12:07:23,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:23,955 INFO L470 AbstractCegarLoop]: Abstraction has 10488 states and 19396 transitions. [2022-01-10 12:07:23,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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) [2022-01-10 12:07:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 10488 states and 19396 transitions. [2022-01-10 12:07:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-10 12:07:23,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:23,958 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] [2022-01-10 12:07:23,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:07:23,958 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:23,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:23,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1433042012, now seen corresponding path program 1 times [2022-01-10 12:07:23,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:23,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248709337] [2022-01-10 12:07:23,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:23,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:24,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:24,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248709337] [2022-01-10 12:07:24,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248709337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:24,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:24,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:24,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603517805] [2022-01-10 12:07:24,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:24,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:24,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:24,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:24,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:24,068 INFO L87 Difference]: Start difference. First operand 10488 states and 19396 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:24,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:24,695 INFO L93 Difference]: Finished difference Result 20355 states and 37828 transitions. [2022-01-10 12:07:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:24,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2022-01-10 12:07:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:24,745 INFO L225 Difference]: With dead ends: 20355 [2022-01-10 12:07:24,746 INFO L226 Difference]: Without dead ends: 15396 [2022-01-10 12:07:24,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:24,762 INFO L933 BasicCegarLoop]: 18157 mSDtfsCounter, 11181 mSDsluCounter, 9123 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11181 SdHoareTripleChecker+Valid, 27280 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:24,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11181 Valid, 27280 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:07:24,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15396 states. [2022-01-10 12:07:25,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15396 to 15368. [2022-01-10 12:07:25,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15368 states, 15358 states have (on average 1.8566870686287278) internal successors, (28515), 15367 states have internal predecessors, (28515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15368 states to 15368 states and 28515 transitions. [2022-01-10 12:07:25,284 INFO L78 Accepts]: Start accepts. Automaton has 15368 states and 28515 transitions. Word has length 50 [2022-01-10 12:07:25,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:25,285 INFO L470 AbstractCegarLoop]: Abstraction has 15368 states and 28515 transitions. [2022-01-10 12:07:25,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:25,286 INFO L276 IsEmpty]: Start isEmpty. Operand 15368 states and 28515 transitions. [2022-01-10 12:07:25,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-10 12:07:25,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:25,288 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] [2022-01-10 12:07:25,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:07:25,288 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:25,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:25,289 INFO L85 PathProgramCache]: Analyzing trace with hash -545538331, now seen corresponding path program 1 times [2022-01-10 12:07:25,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:25,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278797064] [2022-01-10 12:07:25,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:25,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:25,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:25,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278797064] [2022-01-10 12:07:25,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278797064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:25,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:25,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:07:25,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567661514] [2022-01-10 12:07:25,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:25,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:07:25,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:25,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:07:25,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:07:25,383 INFO L87 Difference]: Start difference. First operand 15368 states and 28515 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:26,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:26,422 INFO L93 Difference]: Finished difference Result 61163 states and 113468 transitions. [2022-01-10 12:07:26,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:07:26,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2022-01-10 12:07:26,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:26,579 INFO L225 Difference]: With dead ends: 61163 [2022-01-10 12:07:26,580 INFO L226 Difference]: Without dead ends: 45822 [2022-01-10 12:07:26,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:07:26,625 INFO L933 BasicCegarLoop]: 22431 mSDtfsCounter, 33499 mSDsluCounter, 33676 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33499 SdHoareTripleChecker+Valid, 56107 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:26,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33499 Valid, 56107 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:07:26,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45822 states. [2022-01-10 12:07:27,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45822 to 15388. [2022-01-10 12:07:27,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15388 states, 15378 states have (on average 1.8555728963454285) internal successors, (28535), 15387 states have internal predecessors, (28535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:27,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15388 states to 15388 states and 28535 transitions. [2022-01-10 12:07:27,470 INFO L78 Accepts]: Start accepts. Automaton has 15388 states and 28535 transitions. Word has length 50 [2022-01-10 12:07:27,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:27,471 INFO L470 AbstractCegarLoop]: Abstraction has 15388 states and 28535 transitions. [2022-01-10 12:07:27,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:27,471 INFO L276 IsEmpty]: Start isEmpty. Operand 15388 states and 28535 transitions. [2022-01-10 12:07:27,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 12:07:27,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:27,473 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] [2022-01-10 12:07:27,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:07:27,473 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:27,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:27,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1466013095, now seen corresponding path program 1 times [2022-01-10 12:07:27,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:27,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769588817] [2022-01-10 12:07:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:27,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:27,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:27,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:27,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769588817] [2022-01-10 12:07:27,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769588817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:27,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:27,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:27,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244211786] [2022-01-10 12:07:27,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:27,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:27,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:27,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:27,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:27,547 INFO L87 Difference]: Start difference. First operand 15388 states and 28535 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:28,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:28,119 INFO L93 Difference]: Finished difference Result 30625 states and 56786 transitions. [2022-01-10 12:07:28,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:28,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2022-01-10 12:07:28,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:28,166 INFO L225 Difference]: With dead ends: 30625 [2022-01-10 12:07:28,167 INFO L226 Difference]: Without dead ends: 15252 [2022-01-10 12:07:28,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:28,190 INFO L933 BasicCegarLoop]: 11177 mSDtfsCounter, 11169 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11169 SdHoareTripleChecker+Valid, 11185 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:28,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11169 Valid, 11185 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:28,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-10 12:07:28,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-10 12:07:28,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.8542842146699907) internal successors, (28263), 15251 states have internal predecessors, (28263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:28,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28263 transitions. [2022-01-10 12:07:28,887 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28263 transitions. Word has length 51 [2022-01-10 12:07:28,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:28,891 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28263 transitions. [2022-01-10 12:07:28,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28263 transitions. [2022-01-10 12:07:28,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 12:07:28,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:28,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:28,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:07:28,896 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:28,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:28,896 INFO L85 PathProgramCache]: Analyzing trace with hash -925025759, now seen corresponding path program 1 times [2022-01-10 12:07:28,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:28,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425073574] [2022-01-10 12:07:28,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:28,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:29,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:29,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:29,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425073574] [2022-01-10 12:07:29,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425073574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:29,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:29,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:07:29,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564130654] [2022-01-10 12:07:29,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:29,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:07:29,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:29,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:07:29,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:07:29,070 INFO L87 Difference]: Start difference. First operand 15252 states and 28263 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:29,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:29,643 INFO L93 Difference]: Finished difference Result 30482 states and 56497 transitions. [2022-01-10 12:07:29,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:07:29,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-10 12:07:29,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:29,680 INFO L225 Difference]: With dead ends: 30482 [2022-01-10 12:07:29,680 INFO L226 Difference]: Without dead ends: 15252 [2022-01-10 12:07:29,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:07:29,705 INFO L933 BasicCegarLoop]: 11163 mSDtfsCounter, 33495 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33495 SdHoareTripleChecker+Valid, 11181 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:29,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33495 Valid, 11181 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:29,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-10 12:07:30,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-10 12:07:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.8540217819183835) internal successors, (28259), 15251 states have internal predecessors, (28259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28259 transitions. [2022-01-10 12:07:30,290 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28259 transitions. Word has length 53 [2022-01-10 12:07:30,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:30,290 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28259 transitions. [2022-01-10 12:07:30,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28259 transitions. [2022-01-10 12:07:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 12:07:30,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:30,292 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] [2022-01-10 12:07:30,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:07:30,293 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:30,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:30,293 INFO L85 PathProgramCache]: Analyzing trace with hash 456712842, now seen corresponding path program 1 times [2022-01-10 12:07:30,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:30,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307252486] [2022-01-10 12:07:30,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:30,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:30,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:30,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307252486] [2022-01-10 12:07:30,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307252486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:30,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:30,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:07:30,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616737310] [2022-01-10 12:07:30,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:30,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:07:30,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:30,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:07:30,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:07:30,386 INFO L87 Difference]: Start difference. First operand 15252 states and 28259 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:30,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:30,981 INFO L93 Difference]: Finished difference Result 30476 states and 56479 transitions. [2022-01-10 12:07:30,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:07:30,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2022-01-10 12:07:30,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:31,013 INFO L225 Difference]: With dead ends: 30476 [2022-01-10 12:07:31,013 INFO L226 Difference]: Without dead ends: 15252 [2022-01-10 12:07:31,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:07:31,034 INFO L933 BasicCegarLoop]: 11145 mSDtfsCounter, 33462 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33462 SdHoareTripleChecker+Valid, 11178 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:31,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33462 Valid, 11178 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:31,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-10 12:07:31,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-10 12:07:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.853759349166776) internal successors, (28255), 15251 states have internal predecessors, (28255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28255 transitions. [2022-01-10 12:07:31,667 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28255 transitions. Word has length 54 [2022-01-10 12:07:31,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:31,667 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28255 transitions. [2022-01-10 12:07:31,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28255 transitions. [2022-01-10 12:07:31,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 12:07:31,669 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:31,669 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] [2022-01-10 12:07:31,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:07:31,669 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:31,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:31,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1838274156, now seen corresponding path program 1 times [2022-01-10 12:07:31,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:31,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044161287] [2022-01-10 12:07:31,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:31,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:31,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:31,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044161287] [2022-01-10 12:07:31,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044161287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:31,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:31,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:07:31,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167904350] [2022-01-10 12:07:31,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:31,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:07:31,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:07:31,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:07:31,758 INFO L87 Difference]: Start difference. First operand 15252 states and 28255 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:32,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:32,329 INFO L93 Difference]: Finished difference Result 30476 states and 56472 transitions. [2022-01-10 12:07:32,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:07:32,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-10 12:07:32,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:32,365 INFO L225 Difference]: With dead ends: 30476 [2022-01-10 12:07:32,365 INFO L226 Difference]: Without dead ends: 15252 [2022-01-10 12:07:32,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:07:32,383 INFO L933 BasicCegarLoop]: 11145 mSDtfsCounter, 44612 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44612 SdHoareTripleChecker+Valid, 11178 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:32,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44612 Valid, 11178 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:32,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-10 12:07:32,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-10 12:07:32,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.8534969164151687) internal successors, (28251), 15251 states have internal predecessors, (28251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28251 transitions. [2022-01-10 12:07:32,921 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28251 transitions. Word has length 55 [2022-01-10 12:07:32,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:32,921 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28251 transitions. [2022-01-10 12:07:32,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:32,922 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28251 transitions. [2022-01-10 12:07:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 12:07:32,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:32,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:32,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:07:32,924 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:32,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1301101469, now seen corresponding path program 1 times [2022-01-10 12:07:32,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:32,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644535146] [2022-01-10 12:07:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:32,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:33,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:33,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644535146] [2022-01-10 12:07:33,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644535146] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:33,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:33,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:07:33,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757612696] [2022-01-10 12:07:33,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:33,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:07:33,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:33,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:07:33,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:07:33,004 INFO L87 Difference]: Start difference. First operand 15252 states and 28251 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:33,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:33,538 INFO L93 Difference]: Finished difference Result 30476 states and 56465 transitions. [2022-01-10 12:07:33,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:07:33,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 12:07:33,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:33,573 INFO L225 Difference]: With dead ends: 30476 [2022-01-10 12:07:33,573 INFO L226 Difference]: Without dead ends: 15252 [2022-01-10 12:07:33,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:07:33,596 INFO L933 BasicCegarLoop]: 11145 mSDtfsCounter, 33449 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33449 SdHoareTripleChecker+Valid, 11188 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:33,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33449 Valid, 11188 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:33,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-10 12:07:34,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-10 12:07:34,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.8532344836635612) internal successors, (28247), 15251 states have internal predecessors, (28247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:34,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28247 transitions. [2022-01-10 12:07:34,285 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28247 transitions. Word has length 56 [2022-01-10 12:07:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:34,285 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28247 transitions. [2022-01-10 12:07:34,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28247 transitions. [2022-01-10 12:07:34,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 12:07:34,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:34,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:34,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:07:34,288 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:34,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:34,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1412716895, now seen corresponding path program 1 times [2022-01-10 12:07:34,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:34,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820147853] [2022-01-10 12:07:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:34,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:34,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:34,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:34,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820147853] [2022-01-10 12:07:34,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820147853] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:34,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:34,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:07:34,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061674748] [2022-01-10 12:07:34,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:34,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:07:34,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:34,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:07:34,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:07:34,469 INFO L87 Difference]: Start difference. First operand 15252 states and 28247 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:34,929 INFO L93 Difference]: Finished difference Result 30476 states and 56458 transitions. [2022-01-10 12:07:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 12:07:34,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-10 12:07:34,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:34,957 INFO L225 Difference]: With dead ends: 30476 [2022-01-10 12:07:34,957 INFO L226 Difference]: Without dead ends: 15252 [2022-01-10 12:07:34,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:07:34,978 INFO L933 BasicCegarLoop]: 11145 mSDtfsCounter, 33441 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33441 SdHoareTripleChecker+Valid, 11188 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:34,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33441 Valid, 11188 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:34,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-10 12:07:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-10 12:07:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.8529720509119538) internal successors, (28243), 15251 states have internal predecessors, (28243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:35,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28243 transitions. [2022-01-10 12:07:35,518 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28243 transitions. Word has length 57 [2022-01-10 12:07:35,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:35,518 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28243 transitions. [2022-01-10 12:07:35,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:35,519 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28243 transitions. [2022-01-10 12:07:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 12:07:35,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:35,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:35,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:07:35,520 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:35,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:35,521 INFO L85 PathProgramCache]: Analyzing trace with hash 161927344, now seen corresponding path program 1 times [2022-01-10 12:07:35,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:35,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540946558] [2022-01-10 12:07:35,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:35,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:35,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:35,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:35,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540946558] [2022-01-10 12:07:35,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540946558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:35,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:35,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:07:35,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542616929] [2022-01-10 12:07:35,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:35,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:07:35,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:35,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:07:35,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:07:35,617 INFO L87 Difference]: Start difference. First operand 15252 states and 28243 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:39,980 INFO L93 Difference]: Finished difference Result 125473 states and 232363 transitions. [2022-01-10 12:07:39,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:07:39,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 12:07:39,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:40,349 INFO L225 Difference]: With dead ends: 125473 [2022-01-10 12:07:40,349 INFO L226 Difference]: Without dead ends: 110335 [2022-01-10 12:07:40,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:07:40,378 INFO L933 BasicCegarLoop]: 23337 mSDtfsCounter, 75075 mSDsluCounter, 61658 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75075 SdHoareTripleChecker+Valid, 84995 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:40,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75075 Valid, 84995 Invalid, 1436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [252 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 12:07:40,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110335 states. [2022-01-10 12:07:41,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110335 to 28681. [2022-01-10 12:07:41,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28681 states, 28671 states have (on average 1.852080499459384) internal successors, (53101), 28680 states have internal predecessors, (53101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:42,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28681 states to 28681 states and 53101 transitions. [2022-01-10 12:07:42,032 INFO L78 Accepts]: Start accepts. Automaton has 28681 states and 53101 transitions. Word has length 58 [2022-01-10 12:07:42,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:42,033 INFO L470 AbstractCegarLoop]: Abstraction has 28681 states and 53101 transitions. [2022-01-10 12:07:42,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 28681 states and 53101 transitions. [2022-01-10 12:07:42,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 12:07:42,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:42,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:42,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:07:42,035 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:42,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:42,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1300772599, now seen corresponding path program 1 times [2022-01-10 12:07:42,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:42,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87543421] [2022-01-10 12:07:42,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:42,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:42,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:42,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87543421] [2022-01-10 12:07:42,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87543421] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:42,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:42,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:42,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173903419] [2022-01-10 12:07:42,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:42,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:42,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:42,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:42,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:42,102 INFO L87 Difference]: Start difference. First operand 28681 states and 53101 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:43,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:43,934 INFO L93 Difference]: Finished difference Result 82230 states and 152386 transitions. [2022-01-10 12:07:43,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:43,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 12:07:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:44,044 INFO L225 Difference]: With dead ends: 82230 [2022-01-10 12:07:44,045 INFO L226 Difference]: Without dead ends: 55244 [2022-01-10 12:07:44,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:44,071 INFO L933 BasicCegarLoop]: 11279 mSDtfsCounter, 10302 mSDsluCounter, 11069 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10302 SdHoareTripleChecker+Valid, 22348 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:44,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10302 Valid, 22348 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:07:44,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55244 states. [2022-01-10 12:07:46,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55244 to 54852. [2022-01-10 12:07:46,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54852 states, 54842 states have (on average 1.855968053681485) internal successors, (101785), 54851 states have internal predecessors, (101785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:46,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54852 states to 54852 states and 101785 transitions. [2022-01-10 12:07:46,246 INFO L78 Accepts]: Start accepts. Automaton has 54852 states and 101785 transitions. Word has length 58 [2022-01-10 12:07:46,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:46,247 INFO L470 AbstractCegarLoop]: Abstraction has 54852 states and 101785 transitions. [2022-01-10 12:07:46,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:46,247 INFO L276 IsEmpty]: Start isEmpty. Operand 54852 states and 101785 transitions. [2022-01-10 12:07:46,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 12:07:46,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:46,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:46,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:07:46,250 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:46,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:46,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1069878650, now seen corresponding path program 1 times [2022-01-10 12:07:46,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:46,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910186617] [2022-01-10 12:07:46,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:46,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:46,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:46,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910186617] [2022-01-10 12:07:46,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910186617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:46,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:46,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:46,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616631837] [2022-01-10 12:07:46,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:46,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:46,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:46,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:46,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:46,311 INFO L87 Difference]: Start difference. First operand 54852 states and 101785 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:50,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:50,577 INFO L93 Difference]: Finished difference Result 162734 states and 301888 transitions. [2022-01-10 12:07:50,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:50,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-10 12:07:50,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:50,814 INFO L225 Difference]: With dead ends: 162734 [2022-01-10 12:07:50,814 INFO L226 Difference]: Without dead ends: 107920 [2022-01-10 12:07:50,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:50,863 INFO L933 BasicCegarLoop]: 11080 mSDtfsCounter, 10525 mSDsluCounter, 10530 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10525 SdHoareTripleChecker+Valid, 21610 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:50,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10525 Valid, 21610 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:07:50,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107920 states. [2022-01-10 12:07:53,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107920 to 54622. [2022-01-10 12:07:53,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54622 states, 54612 states have (on average 1.8551234160990258) internal successors, (101312), 54621 states have internal predecessors, (101312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54622 states to 54622 states and 101312 transitions. [2022-01-10 12:07:53,447 INFO L78 Accepts]: Start accepts. Automaton has 54622 states and 101312 transitions. Word has length 59 [2022-01-10 12:07:53,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:53,447 INFO L470 AbstractCegarLoop]: Abstraction has 54622 states and 101312 transitions. [2022-01-10 12:07:53,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:53,447 INFO L276 IsEmpty]: Start isEmpty. Operand 54622 states and 101312 transitions. [2022-01-10 12:07:53,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 12:07:53,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:53,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:53,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:07:53,450 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:53,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:53,450 INFO L85 PathProgramCache]: Analyzing trace with hash -356727233, now seen corresponding path program 1 times [2022-01-10 12:07:53,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:53,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868525707] [2022-01-10 12:07:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:53,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:53,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:53,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868525707] [2022-01-10 12:07:53,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868525707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:53,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:53,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:53,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822659851] [2022-01-10 12:07:53,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:53,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:53,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:53,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:53,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:53,511 INFO L87 Difference]: Start difference. First operand 54622 states and 101312 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:58,070 INFO L93 Difference]: Finished difference Result 162726 states and 301978 transitions. [2022-01-10 12:07:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:58,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-10 12:07:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:58,270 INFO L225 Difference]: With dead ends: 162726 [2022-01-10 12:07:58,271 INFO L226 Difference]: Without dead ends: 108155 [2022-01-10 12:07:58,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:58,311 INFO L933 BasicCegarLoop]: 11395 mSDtfsCounter, 10668 mSDsluCounter, 10879 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10668 SdHoareTripleChecker+Valid, 22274 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:58,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10668 Valid, 22274 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:07:58,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108155 states.