/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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:08:03,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:08:03,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:08:03,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:08:03,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:08:03,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:08:03,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:08:03,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:08:03,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:08:03,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:08:03,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:08:03,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:08:03,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:08:03,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:08:03,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:08:03,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:08:03,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:08:03,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:08:03,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:08:03,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:08:03,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:08:03,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:08:03,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:08:03,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:08:03,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:08:03,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:08:03,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:08:03,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:08:03,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:08:03,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:08:03,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:08:03,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:08:03,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:08:03,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:08:03,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:08:03,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:08:03,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:08:03,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:08:03,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:08:03,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:08:03,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:08:03,905 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 12:08:03,946 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:08:03,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:08:03,947 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:08:03,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:08:03,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:08:03,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:08:03,948 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:08:03,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:08:03,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:08:03,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:08:03,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:08:03,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:08:03,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:08:03,950 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:08:03,950 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:08:03,950 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:08:03,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:08:03,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:08:03,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:08:03,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:08:03,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:08:03,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:08:03,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:08:03,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:08:03,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:08:03,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:08:03,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:08:03,953 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:08:03,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:08:03,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:08:03,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:08:03,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:08:03,954 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:08:03,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:08:04,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:08:04,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:08:04,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:08:04,217 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:08:04,218 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:08:04,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c [2022-01-10 12:08:04,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8768abd/77491dc730cc453095c40fcb6579362c/FLAG9ffc4fe6e [2022-01-10 12:08:04,805 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:08:04,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c [2022-01-10 12:08:04,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8768abd/77491dc730cc453095c40fcb6579362c/FLAG9ffc4fe6e [2022-01-10 12:08:05,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8768abd/77491dc730cc453095c40fcb6579362c [2022-01-10 12:08:05,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:08:05,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:08:05,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:08:05,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:08:05,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:08:05,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:08:05" (1/1) ... [2022-01-10 12:08:05,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9e8bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:05, skipping insertion in model container [2022-01-10 12:08:05,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:08:05" (1/1) ... [2022-01-10 12:08:05,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:08:05,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:08:05,584 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_product32.cil.c[3233,3246] [2022-01-10 12:08:05,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:08:05,909 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:08:05,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:08:05,934 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_product32.cil.c[3233,3246] [2022-01-10 12:08:06,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:08:06,016 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:08:06,046 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_product32.cil.c[3233,3246] [2022-01-10 12:08:06,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:08:06,183 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:08:06,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06 WrapperNode [2022-01-10 12:08:06,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:08:06,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:08:06,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:08:06,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:08:06,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (1/1) ... [2022-01-10 12:08:06,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (1/1) ... [2022-01-10 12:08:06,935 INFO L137 Inliner]: procedures = 99, calls = 361, calls flagged for inlining = 213, calls inlined = 2088, statements flattened = 69357 [2022-01-10 12:08:06,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:08:06,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:08:06,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:08:06,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:08:06,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (1/1) ... [2022-01-10 12:08:06,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (1/1) ... [2022-01-10 12:08:07,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (1/1) ... [2022-01-10 12:08:07,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (1/1) ... [2022-01-10 12:08:07,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (1/1) ... [2022-01-10 12:08:08,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (1/1) ... [2022-01-10 12:08:08,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (1/1) ... [2022-01-10 12:08:08,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:08:08,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:08:08,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:08:08,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:08:08,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (1/1) ... [2022-01-10 12:08:08,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:08:08,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:08:08,361 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 12:08:08,380 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 12:08:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:08:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:08:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:08:08,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:08:08,638 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:08:08,639 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:08:30,697 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:08:30,805 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:08:30,806 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:08:30,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:08:30 BoogieIcfgContainer [2022-01-10 12:08:30,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:08:30,827 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:08:30,827 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:08:30,828 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:08:30,832 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:08:30" (1/1) ... [2022-01-10 12:08:34,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:08:34 BasicIcfg [2022-01-10 12:08:34,424 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:08:34,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:08:34,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:08:34,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:08:34,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:08:05" (1/4) ... [2022-01-10 12:08:34,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646e3bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:08:34, skipping insertion in model container [2022-01-10 12:08:34,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:06" (2/4) ... [2022-01-10 12:08:34,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646e3bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:08:34, skipping insertion in model container [2022-01-10 12:08:34,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:08:30" (3/4) ... [2022-01-10 12:08:34,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646e3bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:08:34, skipping insertion in model container [2022-01-10 12:08:34,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:08:34" (4/4) ... [2022-01-10 12:08:34,432 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product32.cil.cTransformedIcfg [2022-01-10 12:08:34,438 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:08:34,438 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 12:08:34,536 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:08:34,541 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 12:08:34,542 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 12:08:34,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 18148 states, 18137 states have (on average 1.87324254286817) internal successors, (33975), 18147 states have internal predecessors, (33975), 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 12:08:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 12:08:34,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:34,829 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] [2022-01-10 12:08:34,829 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 12:08:34,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:34,834 INFO L85 PathProgramCache]: Analyzing trace with hash -538360006, now seen corresponding path program 1 times [2022-01-10 12:08:34,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:34,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145118955] [2022-01-10 12:08:34,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:34,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:35,310 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 12:08:35,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:35,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145118955] [2022-01-10 12:08:35,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145118955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:35,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:35,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:08:35,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018731844] [2022-01-10 12:08:35,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:35,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:08:35,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:35,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:08:35,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:08:35,420 INFO L87 Difference]: Start difference. First operand has 18148 states, 18137 states have (on average 1.87324254286817) internal successors, (33975), 18147 states have internal predecessors, (33975), 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 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 12:08:38,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:08:38,028 INFO L93 Difference]: Finished difference Result 72381 states and 135533 transitions. [2022-01-10 12:08:38,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:08:38,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2022-01-10 12:08:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:08:38,346 INFO L225 Difference]: With dead ends: 72381 [2022-01-10 12:08:38,347 INFO L226 Difference]: Without dead ends: 54239 [2022-01-10 12:08:38,416 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 12:08:38,422 INFO L933 BasicCegarLoop]: 67726 mSDtfsCounter, 101440 mSDsluCounter, 101619 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101440 SdHoareTripleChecker+Valid, 169345 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:08:38,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101440 Valid, 169345 Invalid, 77 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:08:38,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54239 states. [2022-01-10 12:08:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54239 to 18141. [2022-01-10 12:08:39,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18141 states, 18131 states have (on average 1.8726490541062268) internal successors, (33953), 18140 states have internal predecessors, (33953), 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 12:08:39,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18141 states to 18141 states and 33953 transitions. [2022-01-10 12:08:39,719 INFO L78 Accepts]: Start accepts. Automaton has 18141 states and 33953 transitions. Word has length 34 [2022-01-10 12:08:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:08:39,720 INFO L470 AbstractCegarLoop]: Abstraction has 18141 states and 33953 transitions. [2022-01-10 12:08:39,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 12:08:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand 18141 states and 33953 transitions. [2022-01-10 12:08:39,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 12:08:39,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:39,723 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] [2022-01-10 12:08:39,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:08:39,724 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 12:08:39,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:39,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1863765523, now seen corresponding path program 1 times [2022-01-10 12:08:39,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:39,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713385304] [2022-01-10 12:08:39,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:39,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:39,858 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 12:08:39,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:39,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713385304] [2022-01-10 12:08:39,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713385304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:39,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:39,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:08:39,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886470380] [2022-01-10 12:08:39,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:39,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:08:39,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:39,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:08:39,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:08:39,862 INFO L87 Difference]: Start difference. First operand 18141 states and 33953 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 12:08:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:08:40,517 INFO L93 Difference]: Finished difference Result 36199 states and 67756 transitions. [2022-01-10 12:08:40,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:08:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2022-01-10 12:08:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:08:40,587 INFO L225 Difference]: With dead ends: 36199 [2022-01-10 12:08:40,588 INFO L226 Difference]: Without dead ends: 18073 [2022-01-10 12:08:40,621 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 12:08:40,622 INFO L933 BasicCegarLoop]: 33815 mSDtfsCounter, 33807 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33807 SdHoareTripleChecker+Valid, 33823 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:08:40,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33807 Valid, 33823 Invalid, 4 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:08:40,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-10 12:08:41,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-10 12:08:41,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8721696285223939) internal successors, (33817), 18072 states have internal predecessors, (33817), 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 12:08:41,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33817 transitions. [2022-01-10 12:08:41,365 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33817 transitions. Word has length 35 [2022-01-10 12:08:41,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:08:41,366 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33817 transitions. [2022-01-10 12:08:41,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 12:08:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33817 transitions. [2022-01-10 12:08:41,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 12:08:41,379 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:41,380 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] [2022-01-10 12:08:41,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:08:41,380 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 12:08:41,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:41,381 INFO L85 PathProgramCache]: Analyzing trace with hash -715303621, now seen corresponding path program 1 times [2022-01-10 12:08:41,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:41,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680825228] [2022-01-10 12:08:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:41,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:41,557 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 12:08:41,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:41,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680825228] [2022-01-10 12:08:41,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680825228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:41,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:41,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:08:41,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893629012] [2022-01-10 12:08:41,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:41,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:08:41,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:41,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:08:41,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:08:41,562 INFO L87 Difference]: Start difference. First operand 18073 states and 33817 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 12:08:42,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:08:42,957 INFO L93 Difference]: Finished difference Result 36124 states and 67605 transitions. [2022-01-10 12:08:42,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:08:42,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 37 [2022-01-10 12:08:42,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:08:43,017 INFO L225 Difference]: With dead ends: 36124 [2022-01-10 12:08:43,017 INFO L226 Difference]: Without dead ends: 18073 [2022-01-10 12:08:43,048 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 12:08:43,051 INFO L933 BasicCegarLoop]: 33801 mSDtfsCounter, 168995 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168995 SdHoareTripleChecker+Valid, 33829 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:08:43,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168995 Valid, 33829 Invalid, 32 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:08:43,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-10 12:08:43,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-10 12:08:43,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8720589049438079) internal successors, (33815), 18072 states have internal predecessors, (33815), 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 12:08:43,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33815 transitions. [2022-01-10 12:08:43,835 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33815 transitions. Word has length 37 [2022-01-10 12:08:43,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:08:43,836 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33815 transitions. [2022-01-10 12:08:43,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 12:08:43,836 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33815 transitions. [2022-01-10 12:08:43,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 12:08:43,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:43,840 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] [2022-01-10 12:08:43,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:08:43,840 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 12:08:43,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:43,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1096320543, now seen corresponding path program 1 times [2022-01-10 12:08:43,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:43,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398998222] [2022-01-10 12:08:43,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:43,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:44,033 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 12:08:44,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:44,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398998222] [2022-01-10 12:08:44,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398998222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:44,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:44,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:08:44,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660453233] [2022-01-10 12:08:44,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:44,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:08:44,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:44,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:08:44,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:08:44,035 INFO L87 Difference]: Start difference. First operand 18073 states and 33815 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 12:08:44,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:08:44,863 INFO L93 Difference]: Finished difference Result 36118 states and 67591 transitions. [2022-01-10 12:08:44,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:08:44,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 38 [2022-01-10 12:08:44,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:08:44,922 INFO L225 Difference]: With dead ends: 36118 [2022-01-10 12:08:44,923 INFO L226 Difference]: Without dead ends: 18073 [2022-01-10 12:08:44,955 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 12:08:44,962 INFO L933 BasicCegarLoop]: 33783 mSDtfsCounter, 67582 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67582 SdHoareTripleChecker+Valid, 33826 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:08:44,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67582 Valid, 33826 Invalid, 42 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:08:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-10 12:08:45,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-10 12:08:45,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8719481813652217) internal successors, (33813), 18072 states have internal predecessors, (33813), 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 12:08:45,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33813 transitions. [2022-01-10 12:08:45,755 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33813 transitions. Word has length 38 [2022-01-10 12:08:45,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:08:45,756 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33813 transitions. [2022-01-10 12:08:45,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 12:08:45,756 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33813 transitions. [2022-01-10 12:08:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 12:08:45,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:45,757 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] [2022-01-10 12:08:45,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:08:45,757 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 12:08:45,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:45,758 INFO L85 PathProgramCache]: Analyzing trace with hash 983873254, now seen corresponding path program 1 times [2022-01-10 12:08:45,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:45,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320026509] [2022-01-10 12:08:45,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:45,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:45,854 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 12:08:45,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:45,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320026509] [2022-01-10 12:08:45,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320026509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:45,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:45,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:08:45,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972700701] [2022-01-10 12:08:45,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:45,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:08:45,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:45,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:08:45,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:08:45,856 INFO L87 Difference]: Start difference. First operand 18073 states and 33813 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 12:08:46,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:08:46,850 INFO L93 Difference]: Finished difference Result 36118 states and 67588 transitions. [2022-01-10 12:08:46,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:08:46,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2022-01-10 12:08:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:08:46,904 INFO L225 Difference]: With dead ends: 36118 [2022-01-10 12:08:46,904 INFO L226 Difference]: Without dead ends: 18073 [2022-01-10 12:08:46,926 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 12:08:46,927 INFO L933 BasicCegarLoop]: 33783 mSDtfsCounter, 101367 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101367 SdHoareTripleChecker+Valid, 33826 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:08:46,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101367 Valid, 33826 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:08:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-10 12:08:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-10 12:08:47,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8718374577866357) internal successors, (33811), 18072 states have internal predecessors, (33811), 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 12:08:47,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33811 transitions. [2022-01-10 12:08:47,636 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33811 transitions. Word has length 39 [2022-01-10 12:08:47,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:08:47,640 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33811 transitions. [2022-01-10 12:08:47,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 12:08:47,641 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33811 transitions. [2022-01-10 12:08:47,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 12:08:47,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:47,642 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] [2022-01-10 12:08:47,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:08:47,642 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 12:08:47,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash 773226962, now seen corresponding path program 1 times [2022-01-10 12:08:47,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:47,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259200032] [2022-01-10 12:08:47,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:47,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:47,731 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 12:08:47,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:47,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259200032] [2022-01-10 12:08:47,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259200032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:47,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:47,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:08:47,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749992877] [2022-01-10 12:08:47,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:47,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:08:47,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:47,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:08:47,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:08:47,733 INFO L87 Difference]: Start difference. First operand 18073 states and 33811 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 12:08:48,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:08:48,738 INFO L93 Difference]: Finished difference Result 36118 states and 67585 transitions. [2022-01-10 12:08:48,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:08:48,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 40 [2022-01-10 12:08:48,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:08:48,784 INFO L225 Difference]: With dead ends: 36118 [2022-01-10 12:08:48,784 INFO L226 Difference]: Without dead ends: 18073 [2022-01-10 12:08:48,803 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 12:08:48,804 INFO L933 BasicCegarLoop]: 33783 mSDtfsCounter, 67570 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67570 SdHoareTripleChecker+Valid, 33846 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:08:48,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67570 Valid, 33846 Invalid, 50 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:08:48,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-10 12:08:49,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-10 12:08:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8717267342080497) internal successors, (33809), 18072 states have internal predecessors, (33809), 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 12:08:49,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33809 transitions. [2022-01-10 12:08:49,562 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33809 transitions. Word has length 40 [2022-01-10 12:08:49,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:08:49,563 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33809 transitions. [2022-01-10 12:08:49,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 12:08:49,563 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33809 transitions. [2022-01-10 12:08:49,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 12:08:49,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:49,565 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] [2022-01-10 12:08:49,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:08:49,566 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 12:08:49,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1813378873, now seen corresponding path program 1 times [2022-01-10 12:08:49,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:49,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033419519] [2022-01-10 12:08:49,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:49,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:49,678 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 12:08:49,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:49,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033419519] [2022-01-10 12:08:49,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033419519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:49,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:49,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:08:49,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588916892] [2022-01-10 12:08:49,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:49,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:08:49,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:49,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:08:49,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:08:49,680 INFO L87 Difference]: Start difference. First operand 18073 states and 33809 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 12:08:50,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:08:50,748 INFO L93 Difference]: Finished difference Result 36118 states and 67582 transitions. [2022-01-10 12:08:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 12:08:50,749 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 41 [2022-01-10 12:08:50,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:08:50,796 INFO L225 Difference]: With dead ends: 36118 [2022-01-10 12:08:50,796 INFO L226 Difference]: Without dead ends: 18073 [2022-01-10 12:08:50,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:08:50,823 INFO L933 BasicCegarLoop]: 33783 mSDtfsCounter, 101355 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101355 SdHoareTripleChecker+Valid, 33826 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:08:50,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101355 Valid, 33826 Invalid, 50 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:08:50,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-10 12:08:51,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-10 12:08:51,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8716160106294635) internal successors, (33807), 18072 states have internal predecessors, (33807), 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 12:08:51,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33807 transitions. [2022-01-10 12:08:51,615 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33807 transitions. Word has length 41 [2022-01-10 12:08:51,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:08:51,615 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33807 transitions. [2022-01-10 12:08:51,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 12:08:51,615 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33807 transitions. [2022-01-10 12:08:51,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 12:08:51,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:51,616 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] [2022-01-10 12:08:51,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:08:51,616 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 12:08:51,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:51,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1321397883, now seen corresponding path program 1 times [2022-01-10 12:08:51,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:51,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343113967] [2022-01-10 12:08:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:51,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:51,716 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 12:08:51,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:51,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343113967] [2022-01-10 12:08:51,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343113967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:51,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:51,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:08:51,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592142837] [2022-01-10 12:08:51,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:51,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:08:51,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:51,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:08:51,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:08:51,718 INFO L87 Difference]: Start difference. First operand 18073 states and 33807 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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)