/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_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:06:58,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:06:58,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:06:58,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:06:58,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:06:58,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:06:58,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:06:58,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:06:58,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:06:58,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:06:58,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:06:58,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:06:58,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:06:58,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:06:58,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:06:58,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:06:58,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:06:58,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:06:58,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:06:58,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:06:58,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:06:58,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:06:58,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:06:58,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:06:58,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:06:58,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:06:58,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:06:58,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:06:58,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:06:58,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:06:58,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:06:58,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:06:58,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:06:58,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:06:58,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:06:58,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:06:58,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:06:58,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:06:58,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:06:58,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:06:58,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:06:58,443 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 12:06:58,464 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:06:58,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:06:58,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:06:58,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:06:58,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:06:58,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:06:58,465 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:06:58,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:06:58,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:06:58,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:06:58,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:06:58,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:06:58,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:06:58,466 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:06:58,466 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:06:58,466 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:06:58,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:06:58,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:06:58,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:06:58,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:06:58,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:06:58,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:06:58,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:06:58,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:06:58,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:06:58,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:06:58,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:06:58,467 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:06:58,467 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:06:58,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:06:58,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:06:58,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:06:58,469 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:06:58,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:06:58,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:06:58,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:06:58,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:06:58,709 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:06:58,709 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:06:58,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c [2022-01-10 12:06:58,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f652934/14869e07ebd749fb826b20e3bc3a22f3/FLAG1ffa60ecf [2022-01-10 12:06:59,266 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:06:59,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c [2022-01-10 12:06:59,300 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f652934/14869e07ebd749fb826b20e3bc3a22f3/FLAG1ffa60ecf [2022-01-10 12:06:59,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f652934/14869e07ebd749fb826b20e3bc3a22f3 [2022-01-10 12:06:59,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:06:59,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:06:59,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:06:59,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:06:59,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:06:59,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:06:59" (1/1) ... [2022-01-10 12:06:59,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5def37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:59, skipping insertion in model container [2022-01-10 12:06:59,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:06:59" (1/1) ... [2022-01-10 12:06:59,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:06:59,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:07:00,165 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_product09.cil.c[21710,21723] [2022-01-10 12:07:00,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:07:00,364 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:07:00,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:07:00,404 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_product09.cil.c[21710,21723] [2022-01-10 12:07:00,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:07:00,460 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:07:00,491 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_product09.cil.c[21710,21723] [2022-01-10 12:07:00,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:07:00,572 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:07:00,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00 WrapperNode [2022-01-10 12:07:00,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:07:00,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:07:00,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:07:00,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:07:00,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,785 INFO L137 Inliner]: procedures = 89, calls = 336, calls flagged for inlining = 189, calls inlined = 613, statements flattened = 20577 [2022-01-10 12:07:00,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:07:00,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:07:00,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:07:00,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:07:00,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:01,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:01,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:01,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:07:01,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:07:01,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:07:01,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:07:01,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:01,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:07:01,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:07:01,143 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 12:07:01,150 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 12:07:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:07:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:07:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:07:01,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:07:01,346 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:07:01,348 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:07:08,092 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:07:08,131 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:07:08,131 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:07:08,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:08 BoogieIcfgContainer [2022-01-10 12:07:08,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:07:08,138 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:07:08,138 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:07:08,139 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:07:08,141 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:08" (1/1) ... [2022-01-10 12:07:09,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:07:09 BasicIcfg [2022-01-10 12:07:09,322 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:07:09,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:07:09,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:07:09,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:07:09,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:06:59" (1/4) ... [2022-01-10 12:07:09,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcadf33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:07:09, skipping insertion in model container [2022-01-10 12:07:09,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (2/4) ... [2022-01-10 12:07:09,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcadf33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:07:09, skipping insertion in model container [2022-01-10 12:07:09,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:08" (3/4) ... [2022-01-10 12:07:09,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcadf33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:07:09, skipping insertion in model container [2022-01-10 12:07:09,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:07:09" (4/4) ... [2022-01-10 12:07:09,329 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product09.cil.cTransformedIcfg [2022-01-10 12:07:09,333 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:07:09,334 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 12:07:09,394 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:07:09,398 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 12:07:09,398 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 12:07:09,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 6003 states, 5992 states have (on average 1.8791722296395195) internal successors, (11260), 6002 states have internal predecessors, (11260), 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 12:07:09,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 12:07:09,497 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:09,497 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 12:07:09,498 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 12:07:09,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:09,501 INFO L85 PathProgramCache]: Analyzing trace with hash -788423163, now seen corresponding path program 1 times [2022-01-10 12:07:09,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:09,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889500123] [2022-01-10 12:07:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:09,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:09,980 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 12:07:09,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:09,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889500123] [2022-01-10 12:07:09,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889500123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:09,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:09,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:07:09,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202018380] [2022-01-10 12:07:09,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:09,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:07:09,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:10,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:07:10,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:07:10,045 INFO L87 Difference]: Start difference. First operand has 6003 states, 5992 states have (on average 1.8791722296395195) internal successors, (11260), 6002 states have internal predecessors, (11260), 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 12:07:10,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:10,549 INFO L93 Difference]: Finished difference Result 15632 states and 29290 transitions. [2022-01-10 12:07:10,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:07:10,552 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 12:07:10,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:10,607 INFO L225 Difference]: With dead ends: 15632 [2022-01-10 12:07:10,607 INFO L226 Difference]: Without dead ends: 10544 [2022-01-10 12:07:10,623 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 12:07:10,625 INFO L933 BasicCegarLoop]: 12114 mSDtfsCounter, 23471 mSDsluCounter, 15967 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23471 SdHoareTripleChecker+Valid, 28081 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 12:07:10,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23471 Valid, 28081 Invalid, 70 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:07:10,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2022-01-10 12:07:10,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 5996. [2022-01-10 12:07:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5996 states, 5986 states have (on average 1.877380554627464) internal successors, (11238), 5995 states have internal predecessors, (11238), 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 12:07:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5996 states to 5996 states and 11238 transitions. [2022-01-10 12:07:10,978 INFO L78 Accepts]: Start accepts. Automaton has 5996 states and 11238 transitions. Word has length 46 [2022-01-10 12:07:10,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:10,978 INFO L470 AbstractCegarLoop]: Abstraction has 5996 states and 11238 transitions. [2022-01-10 12:07:10,978 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 12:07:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5996 states and 11238 transitions. [2022-01-10 12:07:10,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 12:07:10,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:10,997 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 12:07:10,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:07:10,997 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 12:07:10,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:10,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1466583160, now seen corresponding path program 1 times [2022-01-10 12:07:10,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:10,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125171257] [2022-01-10 12:07:10,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:10,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:11,108 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 12:07:11,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:11,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125171257] [2022-01-10 12:07:11,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125171257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:11,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:11,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:11,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501918963] [2022-01-10 12:07:11,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:11,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:11,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:11,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:11,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:11,116 INFO L87 Difference]: Start difference. First operand 5996 states and 11238 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 12:07:12,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:12,329 INFO L93 Difference]: Finished difference Result 15458 states and 28963 transitions. [2022-01-10 12:07:12,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:12,329 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 12:07:12,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:12,367 INFO L225 Difference]: With dead ends: 15458 [2022-01-10 12:07:12,367 INFO L226 Difference]: Without dead ends: 10526 [2022-01-10 12:07:12,379 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 12:07:12,380 INFO L933 BasicCegarLoop]: 19071 mSDtfsCounter, 11065 mSDsluCounter, 8029 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11065 SdHoareTripleChecker+Valid, 27100 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:12,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11065 Valid, 27100 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 12:07:12,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10526 states. [2022-01-10 12:07:12,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10526 to 10470. [2022-01-10 12:07:12,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10470 states, 10460 states have (on average 1.8768642447418737) internal successors, (19632), 10469 states have internal predecessors, (19632), 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 12:07:12,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10470 states to 10470 states and 19632 transitions. [2022-01-10 12:07:12,686 INFO L78 Accepts]: Start accepts. Automaton has 10470 states and 19632 transitions. Word has length 49 [2022-01-10 12:07:12,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:12,686 INFO L470 AbstractCegarLoop]: Abstraction has 10470 states and 19632 transitions. [2022-01-10 12:07:12,687 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 12:07:12,687 INFO L276 IsEmpty]: Start isEmpty. Operand 10470 states and 19632 transitions. [2022-01-10 12:07:12,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-10 12:07:12,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:12,689 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 12:07:12,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:07:12,689 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 12:07:12,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:12,689 INFO L85 PathProgramCache]: Analyzing trace with hash -980535983, now seen corresponding path program 1 times [2022-01-10 12:07:12,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:12,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129736350] [2022-01-10 12:07:12,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:12,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:12,751 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 12:07:12,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:12,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129736350] [2022-01-10 12:07:12,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129736350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:12,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:12,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:07:12,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243471495] [2022-01-10 12:07:12,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:12,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:07:12,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:12,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:07:12,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:07:12,753 INFO L87 Difference]: Start difference. First operand 10470 states and 19632 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 12:07:13,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:13,385 INFO L93 Difference]: Finished difference Result 20051 states and 37420 transitions. [2022-01-10 12:07:13,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:07:13,386 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 12:07:13,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:13,423 INFO L225 Difference]: With dead ends: 20051 [2022-01-10 12:07:13,423 INFO L226 Difference]: Without dead ends: 14623 [2022-01-10 12:07:13,432 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 12:07:13,433 INFO L933 BasicCegarLoop]: 18093 mSDtfsCounter, 9252 mSDsluCounter, 27925 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9252 SdHoareTripleChecker+Valid, 46018 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:13,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9252 Valid, 46018 Invalid, 348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [90 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:07:13,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14623 states. [2022-01-10 12:07:13,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14623 to 10488. [2022-01-10 12:07:13,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10488 states, 10478 states have (on average 1.8753578927276198) internal successors, (19650), 10487 states have internal predecessors, (19650), 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 12:07:13,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10488 states to 10488 states and 19650 transitions. [2022-01-10 12:07:13,670 INFO L78 Accepts]: Start accepts. Automaton has 10488 states and 19650 transitions. Word has length 50 [2022-01-10 12:07:13,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:13,670 INFO L470 AbstractCegarLoop]: Abstraction has 10488 states and 19650 transitions. [2022-01-10 12:07:13,670 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 12:07:13,670 INFO L276 IsEmpty]: Start isEmpty. Operand 10488 states and 19650 transitions. [2022-01-10 12:07:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 12:07:13,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:13,672 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 12:07:13,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:07:13,672 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 12:07:13,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:13,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2122316685, now seen corresponding path program 1 times [2022-01-10 12:07:13,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:13,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602066137] [2022-01-10 12:07:13,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:13,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:13,724 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 12:07:13,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:13,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602066137] [2022-01-10 12:07:13,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602066137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:13,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:13,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:13,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450374516] [2022-01-10 12:07:13,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:13,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:13,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:13,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:13,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:13,726 INFO L87 Difference]: Start difference. First operand 10488 states and 19650 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:15,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:15,008 INFO L93 Difference]: Finished difference Result 17374 states and 32525 transitions. [2022-01-10 12:07:15,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:15,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-10 12:07:15,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:15,037 INFO L225 Difference]: With dead ends: 17374 [2022-01-10 12:07:15,038 INFO L226 Difference]: Without dead ends: 11587 [2022-01-10 12:07:15,052 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 12:07:15,058 INFO L933 BasicCegarLoop]: 11630 mSDtfsCounter, 1328 mSDsluCounter, 10251 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 21881 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:15,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1328 Valid, 21881 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 12:07:15,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11587 states. [2022-01-10 12:07:15,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11587 to 11434. [2022-01-10 12:07:15,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11434 states, 11424 states have (on average 1.8493522408963585) internal successors, (21127), 11433 states have internal predecessors, (21127), 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 12:07:15,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11434 states to 11434 states and 21127 transitions. [2022-01-10 12:07:15,379 INFO L78 Accepts]: Start accepts. Automaton has 11434 states and 21127 transitions. Word has length 53 [2022-01-10 12:07:15,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:15,379 INFO L470 AbstractCegarLoop]: Abstraction has 11434 states and 21127 transitions. [2022-01-10 12:07:15,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:15,379 INFO L276 IsEmpty]: Start isEmpty. Operand 11434 states and 21127 transitions. [2022-01-10 12:07:15,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 12:07:15,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:15,381 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 12:07:15,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:07:15,382 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 12:07:15,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:15,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1523175864, now seen corresponding path program 1 times [2022-01-10 12:07:15,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:15,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383830736] [2022-01-10 12:07:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:15,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:15,457 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 12:07:15,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:15,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383830736] [2022-01-10 12:07:15,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383830736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:15,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:15,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:15,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677813430] [2022-01-10 12:07:15,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:15,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:15,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:15,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:15,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:15,459 INFO L87 Difference]: Start difference. First operand 11434 states and 21127 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:16,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:16,533 INFO L93 Difference]: Finished difference Result 18419 states and 33690 transitions. [2022-01-10 12:07:16,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:16,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:16,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:16,560 INFO L225 Difference]: With dead ends: 18419 [2022-01-10 12:07:16,560 INFO L226 Difference]: Without dead ends: 12160 [2022-01-10 12:07:16,572 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 12:07:16,572 INFO L933 BasicCegarLoop]: 17581 mSDtfsCounter, 10949 mSDsluCounter, 7720 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10949 SdHoareTripleChecker+Valid, 25301 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:16,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10949 Valid, 25301 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 12:07:16,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12160 states. [2022-01-10 12:07:16,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12160 to 11744. [2022-01-10 12:07:17,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11744 states, 11734 states have (on average 1.8380773819669336) internal successors, (21568), 11743 states have internal predecessors, (21568), 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 12:07:17,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11744 states to 11744 states and 21568 transitions. [2022-01-10 12:07:17,043 INFO L78 Accepts]: Start accepts. Automaton has 11744 states and 21568 transitions. Word has length 54 [2022-01-10 12:07:17,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:17,047 INFO L470 AbstractCegarLoop]: Abstraction has 11744 states and 21568 transitions. [2022-01-10 12:07:17,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:17,048 INFO L276 IsEmpty]: Start isEmpty. Operand 11744 states and 21568 transitions. [2022-01-10 12:07:17,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 12:07:17,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:17,051 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 12:07:17,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:07:17,051 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 12:07:17,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:17,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1851806464, now seen corresponding path program 1 times [2022-01-10 12:07:17,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:17,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419319772] [2022-01-10 12:07:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:17,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:17,119 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 12:07:17,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:17,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419319772] [2022-01-10 12:07:17,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419319772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:17,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:17,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:17,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708313486] [2022-01-10 12:07:17,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:17,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:17,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:17,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:17,122 INFO L87 Difference]: Start difference. First operand 11744 states and 21568 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:17,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:17,617 INFO L93 Difference]: Finished difference Result 18759 states and 34248 transitions. [2022-01-10 12:07:17,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:17,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:17,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:17,640 INFO L225 Difference]: With dead ends: 18759 [2022-01-10 12:07:17,640 INFO L226 Difference]: Without dead ends: 11764 [2022-01-10 12:07:17,648 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 12:07:17,649 INFO L933 BasicCegarLoop]: 10985 mSDtfsCounter, 9308 mSDsluCounter, 8643 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9308 SdHoareTripleChecker+Valid, 19628 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:17,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9308 Valid, 19628 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:07:17,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11764 states. [2022-01-10 12:07:17,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11764 to 11744. [2022-01-10 12:07:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11744 states, 11734 states have (on average 1.8189875575251406) internal successors, (21344), 11743 states have internal predecessors, (21344), 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 12:07:17,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11744 states to 11744 states and 21344 transitions. [2022-01-10 12:07:17,903 INFO L78 Accepts]: Start accepts. Automaton has 11744 states and 21344 transitions. Word has length 54 [2022-01-10 12:07:17,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:17,903 INFO L470 AbstractCegarLoop]: Abstraction has 11744 states and 21344 transitions. [2022-01-10 12:07:17,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:17,904 INFO L276 IsEmpty]: Start isEmpty. Operand 11744 states and 21344 transitions. [2022-01-10 12:07:17,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 12:07:17,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:17,905 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 12:07:17,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:07:17,905 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 12:07:17,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:17,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1392240496, now seen corresponding path program 1 times [2022-01-10 12:07:17,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:17,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811851455] [2022-01-10 12:07:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:17,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:17,948 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 12:07:17,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:17,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811851455] [2022-01-10 12:07:17,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811851455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:17,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:17,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:17,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36533348] [2022-01-10 12:07:17,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:17,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:17,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:17,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:17,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:17,950 INFO L87 Difference]: Start difference. First operand 11744 states and 21344 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:18,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:18,482 INFO L93 Difference]: Finished difference Result 24555 states and 44252 transitions. [2022-01-10 12:07:18,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:18,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:18,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:18,527 INFO L225 Difference]: With dead ends: 24555 [2022-01-10 12:07:18,527 INFO L226 Difference]: Without dead ends: 18116 [2022-01-10 12:07:18,541 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 12:07:18,542 INFO L933 BasicCegarLoop]: 17633 mSDtfsCounter, 10949 mSDsluCounter, 8755 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10949 SdHoareTripleChecker+Valid, 26388 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 12:07:18,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10949 Valid, 26388 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:07:18,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18116 states. [2022-01-10 12:07:18,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18116 to 18080. [2022-01-10 12:07:19,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18080 states, 18070 states have (on average 1.8084670724958494) internal successors, (32679), 18079 states have internal predecessors, (32679), 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 12:07:19,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18080 states to 18080 states and 32679 transitions. [2022-01-10 12:07:19,046 INFO L78 Accepts]: Start accepts. Automaton has 18080 states and 32679 transitions. Word has length 54 [2022-01-10 12:07:19,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:19,047 INFO L470 AbstractCegarLoop]: Abstraction has 18080 states and 32679 transitions. [2022-01-10 12:07:19,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 18080 states and 32679 transitions. [2022-01-10 12:07:19,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 12:07:19,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:19,049 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 12:07:19,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:07:19,049 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 12:07:19,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:19,050 INFO L85 PathProgramCache]: Analyzing trace with hash -504736815, now seen corresponding path program 1 times [2022-01-10 12:07:19,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:19,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122226497] [2022-01-10 12:07:19,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:19,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:19,114 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 12:07:19,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:19,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122226497] [2022-01-10 12:07:19,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122226497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:19,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:19,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:19,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635643534] [2022-01-10 12:07:19,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:19,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:19,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:19,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:19,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:19,116 INFO L87 Difference]: Start difference. First operand 18080 states and 32679 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:19,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:19,740 INFO L93 Difference]: Finished difference Result 51717 states and 93456 transitions. [2022-01-10 12:07:19,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:19,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:19,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:19,827 INFO L225 Difference]: With dead ends: 51717 [2022-01-10 12:07:19,827 INFO L226 Difference]: Without dead ends: 34941 [2022-01-10 12:07:20,007 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 12:07:20,007 INFO L933 BasicCegarLoop]: 11255 mSDtfsCounter, 10138 mSDsluCounter, 10977 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10138 SdHoareTripleChecker+Valid, 22232 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 12:07:20,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10138 Valid, 22232 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:07:20,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34941 states. [2022-01-10 12:07:20,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34941 to 34608. [2022-01-10 12:07:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34608 states, 34598 states have (on average 1.807734551130123) internal successors, (62544), 34607 states have internal predecessors, (62544), 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 12:07:20,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34608 states to 34608 states and 62544 transitions. [2022-01-10 12:07:20,779 INFO L78 Accepts]: Start accepts. Automaton has 34608 states and 62544 transitions. Word has length 54 [2022-01-10 12:07:20,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:20,779 INFO L470 AbstractCegarLoop]: Abstraction has 34608 states and 62544 transitions. [2022-01-10 12:07:20,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 12:07:20,779 INFO L276 IsEmpty]: Start isEmpty. Operand 34608 states and 62544 transitions. [2022-01-10 12:07:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 12:07:20,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:20,782 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 12:07:20,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:07:20,782 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 12:07:20,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:20,783 INFO L85 PathProgramCache]: Analyzing trace with hash -717002486, now seen corresponding path program 1 times [2022-01-10 12:07:20,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:20,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265027001] [2022-01-10 12:07:20,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:20,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:20,856 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 12:07:20,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:20,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265027001] [2022-01-10 12:07:20,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265027001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:20,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:20,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:07:20,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613108214] [2022-01-10 12:07:20,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:20,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:07:20,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:20,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:07:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:07:20,861 INFO L87 Difference]: Start difference. First operand 34608 states and 62544 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 12:07:23,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:23,332 INFO L93 Difference]: Finished difference Result 138123 states and 249584 transitions. [2022-01-10 12:07:23,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:07:23,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 12:07:23,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:23,566 INFO L225 Difference]: With dead ends: 138123 [2022-01-10 12:07:23,566 INFO L226 Difference]: Without dead ends: 103542 [2022-01-10 12:07:23,605 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 12:07:23,605 INFO L933 BasicCegarLoop]: 21967 mSDtfsCounter, 32803 mSDsluCounter, 32980 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32803 SdHoareTripleChecker+Valid, 54947 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:23,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32803 Valid, 54947 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:07:23,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103542 states. [2022-01-10 12:07:24,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103542 to 34628. [2022-01-10 12:07:24,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34628 states, 34618 states have (on average 1.8072678953145762) internal successors, (62564), 34627 states have internal predecessors, (62564), 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 12:07:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34628 states to 34628 states and 62564 transitions. [2022-01-10 12:07:25,080 INFO L78 Accepts]: Start accepts. Automaton has 34628 states and 62564 transitions. Word has length 54 [2022-01-10 12:07:25,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:25,080 INFO L470 AbstractCegarLoop]: Abstraction has 34628 states and 62564 transitions. [2022-01-10 12:07:25,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 12:07:25,081 INFO L276 IsEmpty]: Start isEmpty. Operand 34628 states and 62564 transitions. [2022-01-10 12:07:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 12:07:25,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:25,083 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 12:07:25,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:07:25,084 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 12:07:25,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash 281247030, now seen corresponding path program 1 times [2022-01-10 12:07:25,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:25,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15063250] [2022-01-10 12:07:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:25,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:25,120 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 12:07:25,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:25,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15063250] [2022-01-10 12:07:25,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15063250] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:25,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:25,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:25,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041429337] [2022-01-10 12:07:25,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:25,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:25,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:25,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:25,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:25,122 INFO L87 Difference]: Start difference. First operand 34628 states and 62564 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 12:07:26,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:26,071 INFO L93 Difference]: Finished difference Result 69105 states and 124844 transitions. [2022-01-10 12:07:26,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:26,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 12:07:26,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:26,131 INFO L225 Difference]: With dead ends: 69105 [2022-01-10 12:07:26,132 INFO L226 Difference]: Without dead ends: 34492 [2022-01-10 12:07:26,161 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 12:07:26,161 INFO L933 BasicCegarLoop]: 10945 mSDtfsCounter, 10937 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10937 SdHoareTripleChecker+Valid, 10953 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 12:07:26,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10937 Valid, 10953 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:26,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34492 states. [2022-01-10 12:07:27,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34492 to 34492. [2022-01-10 12:07:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34492 states, 34482 states have (on average 1.8065077431703498) internal successors, (62292), 34491 states have internal predecessors, (62292), 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 12:07:27,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34492 states to 34492 states and 62292 transitions. [2022-01-10 12:07:27,270 INFO L78 Accepts]: Start accepts. Automaton has 34492 states and 62292 transitions. Word has length 55 [2022-01-10 12:07:27,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:27,271 INFO L470 AbstractCegarLoop]: Abstraction has 34492 states and 62292 transitions. [2022-01-10 12:07:27,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 12:07:27,271 INFO L276 IsEmpty]: Start isEmpty. Operand 34492 states and 62292 transitions. [2022-01-10 12:07:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 12:07:27,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:27,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:27,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:07:27,274 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 12:07:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:27,274 INFO L85 PathProgramCache]: Analyzing trace with hash 168276478, now seen corresponding path program 1 times [2022-01-10 12:07:27,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:27,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896930371] [2022-01-10 12:07:27,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:27,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:27,376 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 12:07:27,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:27,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896930371] [2022-01-10 12:07:27,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896930371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:27,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:27,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:07:27,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714095878] [2022-01-10 12:07:27,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:27,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:07:27,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:27,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:07:27,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:07:27,378 INFO L87 Difference]: Start difference. First operand 34492 states and 62292 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 12:07:28,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:28,649 INFO L93 Difference]: Finished difference Result 68962 states and 124555 transitions. [2022-01-10 12:07:28,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:07:28,650 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 12:07:28,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:28,723 INFO L225 Difference]: With dead ends: 68962 [2022-01-10 12:07:28,723 INFO L226 Difference]: Without dead ends: 34492 [2022-01-10 12:07:28,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:07:28,756 INFO L933 BasicCegarLoop]: 10931 mSDtfsCounter, 43721 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43721 SdHoareTripleChecker+Valid, 10949 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:28,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43721 Valid, 10949 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:28,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34492 states. [2022-01-10 12:07:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34492 to 34492. [2022-01-10 12:07:29,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34492 states, 34482 states have (on average 1.8063917406182937) internal successors, (62288), 34491 states have internal predecessors, (62288), 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 12:07:29,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34492 states to 34492 states and 62288 transitions. [2022-01-10 12:07:29,990 INFO L78 Accepts]: Start accepts. Automaton has 34492 states and 62288 transitions. Word has length 57 [2022-01-10 12:07:29,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:29,990 INFO L470 AbstractCegarLoop]: Abstraction has 34492 states and 62288 transitions. [2022-01-10 12:07:29,990 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 12:07:29,990 INFO L276 IsEmpty]: Start isEmpty. Operand 34492 states and 62288 transitions. [2022-01-10 12:07:29,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 12:07:29,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:29,993 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 12:07:29,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:07:29,993 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 12:07:29,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:29,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1843191761, now seen corresponding path program 1 times [2022-01-10 12:07:29,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:29,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291988511] [2022-01-10 12:07:29,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:29,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:30,041 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 12:07:30,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:30,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291988511] [2022-01-10 12:07:30,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291988511] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:30,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:30,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:07:30,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462455002] [2022-01-10 12:07:30,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:30,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:07:30,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:30,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:07:30,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:07:30,043 INFO L87 Difference]: Start difference. First operand 34492 states and 62288 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 12:07:31,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:31,146 INFO L93 Difference]: Finished difference Result 68956 states and 124537 transitions. [2022-01-10 12:07:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:07:31,146 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 12:07:31,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:31,215 INFO L225 Difference]: With dead ends: 68956 [2022-01-10 12:07:31,215 INFO L226 Difference]: Without dead ends: 34492 [2022-01-10 12:07:31,246 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 12:07:31,247 INFO L933 BasicCegarLoop]: 10913 mSDtfsCounter, 32766 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32766 SdHoareTripleChecker+Valid, 10946 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 12:07:31,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32766 Valid, 10946 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:31,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34492 states. [2022-01-10 12:07:32,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34492 to 34492. [2022-01-10 12:07:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34492 states, 34482 states have (on average 1.8062757380662375) internal successors, (62284), 34491 states have internal predecessors, (62284), 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 12:07:32,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34492 states to 34492 states and 62284 transitions. [2022-01-10 12:07:32,692 INFO L78 Accepts]: Start accepts. Automaton has 34492 states and 62284 transitions. Word has length 58 [2022-01-10 12:07:32,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:32,693 INFO L470 AbstractCegarLoop]: Abstraction has 34492 states and 62284 transitions. [2022-01-10 12:07:32,693 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 12:07:32,693 INFO L276 IsEmpty]: Start isEmpty. Operand 34492 states and 62284 transitions. [2022-01-10 12:07:32,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 12:07:32,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:32,695 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 12:07:32,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:07:32,696 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 12:07:32,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:32,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1867286071, now seen corresponding path program 1 times [2022-01-10 12:07:32,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:32,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925274962] [2022-01-10 12:07:32,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:32,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:32,750 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 12:07:32,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:32,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925274962] [2022-01-10 12:07:32,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925274962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:32,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:32,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:07:32,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242998573] [2022-01-10 12:07:32,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:32,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:07:32,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:32,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:07:32,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:07:32,752 INFO L87 Difference]: Start difference. First operand 34492 states and 62284 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:36,706 INFO L93 Difference]: Finished difference Result 118965 states and 214255 transitions. [2022-01-10 12:07:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:07:36,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-10 12:07:36,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:36,873 INFO L225 Difference]: With dead ends: 118965 [2022-01-10 12:07:36,874 INFO L226 Difference]: Without dead ends: 94069 [2022-01-10 12:07:36,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:07:36,907 INFO L933 BasicCegarLoop]: 17989 mSDtfsCounter, 45260 mSDsluCounter, 27224 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45260 SdHoareTripleChecker+Valid, 45213 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:36,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45260 Valid, 45213 Invalid, 1426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [314 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 12:07:36,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94069 states. [2022-01-10 12:07:38,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94069 to 34612. [2022-01-10 12:07:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34612 states, 34602 states have (on average 1.8034795676550488) internal successors, (62404), 34611 states have internal predecessors, (62404), 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 12:07:38,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34612 states to 34612 states and 62404 transitions. [2022-01-10 12:07:38,672 INFO L78 Accepts]: Start accepts. Automaton has 34612 states and 62404 transitions. Word has length 59 [2022-01-10 12:07:38,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:38,672 INFO L470 AbstractCegarLoop]: Abstraction has 34612 states and 62404 transitions. [2022-01-10 12:07:38,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:38,673 INFO L276 IsEmpty]: Start isEmpty. Operand 34612 states and 62404 transitions. [2022-01-10 12:07:38,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 12:07:38,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:38,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:38,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:07:38,675 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 12:07:38,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:38,676 INFO L85 PathProgramCache]: Analyzing trace with hash 81560574, now seen corresponding path program 1 times [2022-01-10 12:07:38,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:38,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965019125] [2022-01-10 12:07:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:38,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:38,723 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 12:07:38,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:38,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965019125] [2022-01-10 12:07:38,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965019125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:38,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:38,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:38,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095350854] [2022-01-10 12:07:38,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:38,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:38,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:38,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:38,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:38,725 INFO L87 Difference]: Start difference. First operand 34612 states and 62404 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:41,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:41,586 INFO L93 Difference]: Finished difference Result 90848 states and 162744 transitions. [2022-01-10 12:07:41,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:41,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 12:07:41,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:41,818 INFO L225 Difference]: With dead ends: 90848 [2022-01-10 12:07:41,818 INFO L226 Difference]: Without dead ends: 63510 [2022-01-10 12:07:41,845 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 12:07:41,845 INFO L933 BasicCegarLoop]: 10743 mSDtfsCounter, 9569 mSDsluCounter, 9597 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9569 SdHoareTripleChecker+Valid, 20340 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:41,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9569 Valid, 20340 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 12:07:41,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63510 states. [2022-01-10 12:07:43,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63510 to 34112. [2022-01-10 12:07:43,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34112 states, 34102 states have (on average 1.799571872617442) internal successors, (61369), 34111 states have internal predecessors, (61369), 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 12:07:43,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34112 states to 34112 states and 61369 transitions. [2022-01-10 12:07:43,316 INFO L78 Accepts]: Start accepts. Automaton has 34112 states and 61369 transitions. Word has length 60 [2022-01-10 12:07:43,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:43,317 INFO L470 AbstractCegarLoop]: Abstraction has 34112 states and 61369 transitions. [2022-01-10 12:07:43,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:43,317 INFO L276 IsEmpty]: Start isEmpty. Operand 34112 states and 61369 transitions. [2022-01-10 12:07:43,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 12:07:43,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:43,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:43,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:07:43,320 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1917366672, now seen corresponding path program 1 times [2022-01-10 12:07:43,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:43,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679125334] [2022-01-10 12:07:43,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:43,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:43,395 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 12:07:43,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:43,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679125334] [2022-01-10 12:07:43,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679125334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:43,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:43,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:43,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376433183] [2022-01-10 12:07:43,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:43,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:43,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:43,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:43,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:43,397 INFO L87 Difference]: Start difference. First operand 34112 states and 61369 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:45,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:45,625 INFO L93 Difference]: Finished difference Result 58700 states and 105087 transitions. [2022-01-10 12:07:45,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:45,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 12:07:45,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:45,689 INFO L225 Difference]: With dead ends: 58700 [2022-01-10 12:07:45,690 INFO L226 Difference]: Without dead ends: 34132 [2022-01-10 12:07:45,716 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 12:07:45,717 INFO L933 BasicCegarLoop]: 17316 mSDtfsCounter, 10367 mSDsluCounter, 7539 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10367 SdHoareTripleChecker+Valid, 24855 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:45,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10367 Valid, 24855 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 12:07:45,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34132 states. [2022-01-10 12:07:47,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34132 to 31760. [2022-01-10 12:07:47,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31760 states, 31750 states have (on average 1.804251968503937) internal successors, (57285), 31759 states have internal predecessors, (57285), 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 12:07:47,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31760 states to 31760 states and 57285 transitions. [2022-01-10 12:07:47,119 INFO L78 Accepts]: Start accepts. Automaton has 31760 states and 57285 transitions. Word has length 61 [2022-01-10 12:07:47,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:47,119 INFO L470 AbstractCegarLoop]: Abstraction has 31760 states and 57285 transitions. [2022-01-10 12:07:47,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:47,119 INFO L276 IsEmpty]: Start isEmpty. Operand 31760 states and 57285 transitions. [2022-01-10 12:07:47,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 12:07:47,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:47,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:47,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:07:47,122 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:47,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:47,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1372114148, now seen corresponding path program 1 times [2022-01-10 12:07:47,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:47,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166371278] [2022-01-10 12:07:47,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:47,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:47,179 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 12:07:47,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:47,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166371278] [2022-01-10 12:07:47,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166371278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:47,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:47,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:07:47,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765291169] [2022-01-10 12:07:47,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:47,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:07:47,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:47,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:07:47,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:07:47,180 INFO L87 Difference]: Start difference. First operand 31760 states and 57285 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 12:07:48,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:48,482 INFO L93 Difference]: Finished difference Result 63492 states and 114532 transitions. [2022-01-10 12:07:48,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:07:48,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 62 [2022-01-10 12:07:48,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:48,534 INFO L225 Difference]: With dead ends: 63492 [2022-01-10 12:07:48,534 INFO L226 Difference]: Without dead ends: 31760 [2022-01-10 12:07:48,558 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 12:07:48,559 INFO L933 BasicCegarLoop]: 10688 mSDtfsCounter, 42784 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42784 SdHoareTripleChecker+Valid, 10721 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 12:07:48,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42784 Valid, 10721 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:48,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31760 states. [2022-01-10 12:07:49,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31760 to 31760. [2022-01-10 12:07:50,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31760 states, 31750 states have (on average 1.8041259842519686) internal successors, (57281), 31759 states have internal predecessors, (57281), 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 12:07:50,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31760 states to 31760 states and 57281 transitions. [2022-01-10 12:07:50,056 INFO L78 Accepts]: Start accepts. Automaton has 31760 states and 57281 transitions. Word has length 62 [2022-01-10 12:07:50,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:50,056 INFO L470 AbstractCegarLoop]: Abstraction has 31760 states and 57281 transitions. [2022-01-10 12:07:50,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 12:07:50,057 INFO L276 IsEmpty]: Start isEmpty. Operand 31760 states and 57281 transitions. [2022-01-10 12:07:50,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 12:07:50,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:50,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:50,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:07:50,059 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:50,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:50,059 INFO L85 PathProgramCache]: Analyzing trace with hash 2009059203, now seen corresponding path program 1 times [2022-01-10 12:07:50,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:50,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977788437] [2022-01-10 12:07:50,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:50,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:50,115 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 12:07:50,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:50,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977788437] [2022-01-10 12:07:50,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977788437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:50,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:50,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:07:50,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49733645] [2022-01-10 12:07:50,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:50,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:07:50,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:50,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:07:50,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:07:50,117 INFO L87 Difference]: Start difference. First operand 31760 states and 57281 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 12:07:51,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:51,409 INFO L93 Difference]: Finished difference Result 63492 states and 114525 transitions. [2022-01-10 12:07:51,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:07:51,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2022-01-10 12:07:51,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:51,463 INFO L225 Difference]: With dead ends: 63492 [2022-01-10 12:07:51,463 INFO L226 Difference]: Without dead ends: 31760 [2022-01-10 12:07:51,488 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 12:07:51,489 INFO L933 BasicCegarLoop]: 10688 mSDtfsCounter, 42771 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42771 SdHoareTripleChecker+Valid, 10731 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:51,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42771 Valid, 10731 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:51,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31760 states. [2022-01-10 12:07:52,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31760 to 31760. [2022-01-10 12:07:52,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31760 states, 31750 states have (on average 1.804) internal successors, (57277), 31759 states have internal predecessors, (57277), 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 12:07:52,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31760 states to 31760 states and 57277 transitions. [2022-01-10 12:07:52,823 INFO L78 Accepts]: Start accepts. Automaton has 31760 states and 57277 transitions. Word has length 63 [2022-01-10 12:07:52,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:52,823 INFO L470 AbstractCegarLoop]: Abstraction has 31760 states and 57277 transitions. [2022-01-10 12:07:52,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 12:07:52,823 INFO L276 IsEmpty]: Start isEmpty. Operand 31760 states and 57277 transitions. [2022-01-10 12:07:52,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 12:07:52,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:52,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:52,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:07:52,826 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:52,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:52,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2086838327, now seen corresponding path program 1 times [2022-01-10 12:07:52,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:52,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677038882] [2022-01-10 12:07:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:52,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:53,018 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 12:07:53,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:53,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677038882] [2022-01-10 12:07:53,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677038882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:53,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:53,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:07:53,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314017677] [2022-01-10 12:07:53,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:53,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:07:53,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:53,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:07:53,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:07:53,020 INFO L87 Difference]: Start difference. First operand 31760 states and 57277 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 12:07:54,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:54,380 INFO L93 Difference]: Finished difference Result 63492 states and 114518 transitions. [2022-01-10 12:07:54,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 12:07:54,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-01-10 12:07:54,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:54,431 INFO L225 Difference]: With dead ends: 63492 [2022-01-10 12:07:54,431 INFO L226 Difference]: Without dead ends: 31760 [2022-01-10 12:07:54,452 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 12:07:54,453 INFO L933 BasicCegarLoop]: 10688 mSDtfsCounter, 32070 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32070 SdHoareTripleChecker+Valid, 10731 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 12:07:54,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32070 Valid, 10731 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:54,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31760 states. [2022-01-10 12:07:55,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31760 to 31760. [2022-01-10 12:07:55,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31760 states, 31750 states have (on average 1.8038740157480315) internal successors, (57273), 31759 states have internal predecessors, (57273), 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 12:07:55,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31760 states to 31760 states and 57273 transitions. [2022-01-10 12:07:55,797 INFO L78 Accepts]: Start accepts. Automaton has 31760 states and 57273 transitions. Word has length 64 [2022-01-10 12:07:55,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:55,798 INFO L470 AbstractCegarLoop]: Abstraction has 31760 states and 57273 transitions. [2022-01-10 12:07:55,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 12:07:55,798 INFO L276 IsEmpty]: Start isEmpty. Operand 31760 states and 57273 transitions. [2022-01-10 12:07:55,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 12:07:55,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:55,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:55,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 12:07:55,800 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:55,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:55,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1748731888, now seen corresponding path program 1 times [2022-01-10 12:07:55,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:55,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463447372] [2022-01-10 12:07:55,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:55,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:55,857 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 12:07:55,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:55,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463447372] [2022-01-10 12:07:55,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463447372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:55,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:55,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:07:55,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214286264] [2022-01-10 12:07:55,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:55,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:07:55,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:55,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:07:55,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:07:55,858 INFO L87 Difference]: Start difference. First operand 31760 states and 57273 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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)