/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:34:56,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:34:56,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:34:57,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:34:57,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:34:57,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:34:57,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:34:57,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:34:57,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:34:57,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:34:57,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:34:57,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:34:57,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:34:57,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:34:57,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:34:57,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:34:57,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:34:57,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:34:57,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:34:57,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:34:57,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:34:57,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:34:57,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:34:57,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:34:57,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:34:57,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:34:57,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:34:57,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:34:57,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:34:57,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:34:57,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:34:57,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:34:57,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:34:57,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:34:57,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:34:57,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:34:57,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:34:57,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:34:57,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:34:57,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:34:57,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:34:57,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:34:57,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:34:57,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:34:57,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:34:57,079 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:34:57,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:34:57,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:34:57,080 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:34:57,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:34:57,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:34:57,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:34:57,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:34:57,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:34:57,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:34:57,081 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:34:57,081 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:34:57,081 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:34:57,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:34:57,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:34:57,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:34:57,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:34:57,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:34:57,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:34:57,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:34:57,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:34:57,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:34:57,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:34:57,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:34:57,082 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:34:57,082 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:34:57,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:34:57,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:34:57,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:34:57,083 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:34:57,083 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:34:57,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:34:57,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:34:57,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:34:57,315 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:34:57,316 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:34:57,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c [2022-01-11 05:34:57,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/011c37d9b/679f79742339465bb0c36ae387dbda8f/FLAGa5dae765a [2022-01-11 05:34:57,815 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:34:57,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c [2022-01-11 05:34:57,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/011c37d9b/679f79742339465bb0c36ae387dbda8f/FLAGa5dae765a [2022-01-11 05:34:57,854 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/011c37d9b/679f79742339465bb0c36ae387dbda8f [2022-01-11 05:34:57,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:34:57,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:34:57,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:34:57,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:34:57,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:34:57,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:34:57" (1/1) ... [2022-01-11 05:34:57,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640e8561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:57, skipping insertion in model container [2022-01-11 05:34:57,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:34:57" (1/1) ... [2022-01-11 05:34:57,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:34:57,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:34:58,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c[5770,5783] [2022-01-11 05:34:58,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:58,352 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:34:58,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:34:58,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c[5770,5783] [2022-01-11 05:34:58,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:58,442 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:34:58,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c[5770,5783] [2022-01-11 05:34:58,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:58,525 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:34:58,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58 WrapperNode [2022-01-11 05:34:58,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:34:58,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:34:58,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:34:58,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:34:58,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (1/1) ... [2022-01-11 05:34:58,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (1/1) ... [2022-01-11 05:34:58,806 INFO L137 Inliner]: procedures = 90, calls = 338, calls flagged for inlining = 191, calls inlined = 673, statements flattened = 21629 [2022-01-11 05:34:58,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:34:58,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:34:58,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:34:58,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:34:58,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (1/1) ... [2022-01-11 05:34:58,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (1/1) ... [2022-01-11 05:34:58,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (1/1) ... [2022-01-11 05:34:58,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (1/1) ... [2022-01-11 05:34:59,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (1/1) ... [2022-01-11 05:34:59,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (1/1) ... [2022-01-11 05:34:59,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (1/1) ... [2022-01-11 05:34:59,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:34:59,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:34:59,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:34:59,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:34:59,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (1/1) ... [2022-01-11 05:34:59,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:34:59,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:34:59,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:34:59,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:34:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:34:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:34:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:34:59,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:34:59,614 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:34:59,615 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:35:07,174 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:35:07,259 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:35:07,259 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:35:07,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:07 BoogieIcfgContainer [2022-01-11 05:35:07,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:35:07,270 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:35:07,270 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:35:07,272 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:35:07,275 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:07" (1/1) ... [2022-01-11 05:35:08,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:35:08 BasicIcfg [2022-01-11 05:35:08,488 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:35:08,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:35:08,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:35:08,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:35:08,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:34:57" (1/4) ... [2022-01-11 05:35:08,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492e9866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:35:08, skipping insertion in model container [2022-01-11 05:35:08,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:58" (2/4) ... [2022-01-11 05:35:08,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492e9866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:35:08, skipping insertion in model container [2022-01-11 05:35:08,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:07" (3/4) ... [2022-01-11 05:35:08,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492e9866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:35:08, skipping insertion in model container [2022-01-11 05:35:08,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:35:08" (4/4) ... [2022-01-11 05:35:08,494 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product17.cil.cTransformedIcfg [2022-01-11 05:35:08,497 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:35:08,497 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:35:08,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:35:08,558 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:35:08,559 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:35:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 6213 states, 6202 states have (on average 1.8735891647855532) internal successors, (11620), 6212 states have internal predecessors, (11620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:08,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 05:35:08,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:08,648 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] [2022-01-11 05:35:08,648 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)] === [2022-01-11 05:35:08,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:08,652 INFO L85 PathProgramCache]: Analyzing trace with hash 963223256, now seen corresponding path program 1 times [2022-01-11 05:35:08,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:08,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723814656] [2022-01-11 05:35:08,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:08,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:08,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:08,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:08,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723814656] [2022-01-11 05:35:08,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723814656] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:08,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:08,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:35:08,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919998391] [2022-01-11 05:35:08,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:08,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:35:08,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:09,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:35:09,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:35:09,035 INFO L87 Difference]: Start difference. First operand has 6213 states, 6202 states have (on average 1.8735891647855532) internal successors, (11620), 6212 states have internal predecessors, (11620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:09,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:09,629 INFO L93 Difference]: Finished difference Result 16220 states and 30298 transitions. [2022-01-11 05:35:09,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:35:09,631 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 [2022-01-11 05:35:09,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:09,692 INFO L225 Difference]: With dead ends: 16220 [2022-01-11 05:35:09,692 INFO L226 Difference]: Without dead ends: 10964 [2022-01-11 05:35:09,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:09,718 INFO L933 BasicCegarLoop]: 12474 mSDtfsCounter, 24551 mSDsluCounter, 16327 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24551 SdHoareTripleChecker+Valid, 28801 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:09,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24551 Valid, 28801 Invalid, 70 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:09,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10964 states. [2022-01-11 05:35:10,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10964 to 6206. [2022-01-11 05:35:10,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6206 states, 6196 states have (on average 1.8718528082633958) internal successors, (11598), 6205 states have internal predecessors, (11598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:10,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6206 states to 6206 states and 11598 transitions. [2022-01-11 05:35:10,169 INFO L78 Accepts]: Start accepts. Automaton has 6206 states and 11598 transitions. Word has length 46 [2022-01-11 05:35:10,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:10,169 INFO L470 AbstractCegarLoop]: Abstraction has 6206 states and 11598 transitions. [2022-01-11 05:35:10,169 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) [2022-01-11 05:35:10,169 INFO L276 IsEmpty]: Start isEmpty. Operand 6206 states and 11598 transitions. [2022-01-11 05:35:10,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-11 05:35:10,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:10,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:10,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:35:10,173 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)] === [2022-01-11 05:35:10,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:10,173 INFO L85 PathProgramCache]: Analyzing trace with hash 920957569, now seen corresponding path program 1 times [2022-01-11 05:35:10,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:10,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434482012] [2022-01-11 05:35:10,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:10,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:10,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:10,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:10,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434482012] [2022-01-11 05:35:10,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434482012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:10,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:10,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:10,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187186999] [2022-01-11 05:35:10,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:10,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:10,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:10,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:10,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:10,475 INFO L87 Difference]: Start difference. First operand 6206 states and 11598 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:11,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:11,867 INFO L93 Difference]: Finished difference Result 15754 states and 29426 transitions. [2022-01-11 05:35:11,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:11,867 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 [2022-01-11 05:35:11,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:11,905 INFO L225 Difference]: With dead ends: 15754 [2022-01-11 05:35:11,905 INFO L226 Difference]: Without dead ends: 10544 [2022-01-11 05:35:11,913 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 [2022-01-11 05:35:11,914 INFO L933 BasicCegarLoop]: 19083 mSDtfsCounter, 10141 mSDsluCounter, 8773 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10141 SdHoareTripleChecker+Valid, 27856 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:11,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10141 Valid, 27856 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-11 05:35:11,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2022-01-11 05:35:12,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 10488. [2022-01-11 05:35:12,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10488 states, 10478 states have (on average 1.8511166253101736) internal successors, (19396), 10487 states have internal predecessors, (19396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:12,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10488 states to 10488 states and 19396 transitions. [2022-01-11 05:35:12,157 INFO L78 Accepts]: Start accepts. Automaton has 10488 states and 19396 transitions. Word has length 49 [2022-01-11 05:35:12,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:12,158 INFO L470 AbstractCegarLoop]: Abstraction has 10488 states and 19396 transitions. [2022-01-11 05:35:12,158 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) [2022-01-11 05:35:12,158 INFO L276 IsEmpty]: Start isEmpty. Operand 10488 states and 19396 transitions. [2022-01-11 05:35:12,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 05:35:12,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:12,160 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] [2022-01-11 05:35:12,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:35:12,160 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)] === [2022-01-11 05:35:12,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:12,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1433042012, now seen corresponding path program 1 times [2022-01-11 05:35:12,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:12,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240650790] [2022-01-11 05:35:12,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:12,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:12,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:12,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:12,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240650790] [2022-01-11 05:35:12,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240650790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:12,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:12,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:12,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130217305] [2022-01-11 05:35:12,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:12,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:12,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:12,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:12,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:12,236 INFO L87 Difference]: Start difference. First operand 10488 states and 19396 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:12,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:12,721 INFO L93 Difference]: Finished difference Result 20355 states and 37828 transitions. [2022-01-11 05:35:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:12,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-01-11 05:35:12,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:12,757 INFO L225 Difference]: With dead ends: 20355 [2022-01-11 05:35:12,757 INFO L226 Difference]: Without dead ends: 15396 [2022-01-11 05:35:12,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:12,787 INFO L933 BasicCegarLoop]: 18157 mSDtfsCounter, 11181 mSDsluCounter, 9123 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11181 SdHoareTripleChecker+Valid, 27280 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:12,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11181 Valid, 27280 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:35:12,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15396 states. [2022-01-11 05:35:13,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15396 to 15368. [2022-01-11 05:35:13,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15368 states, 15358 states have (on average 1.8566870686287278) internal successors, (28515), 15367 states have internal predecessors, (28515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:13,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15368 states to 15368 states and 28515 transitions. [2022-01-11 05:35:13,196 INFO L78 Accepts]: Start accepts. Automaton has 15368 states and 28515 transitions. Word has length 50 [2022-01-11 05:35:13,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:13,197 INFO L470 AbstractCegarLoop]: Abstraction has 15368 states and 28515 transitions. [2022-01-11 05:35:13,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:13,198 INFO L276 IsEmpty]: Start isEmpty. Operand 15368 states and 28515 transitions. [2022-01-11 05:35:13,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 05:35:13,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:13,199 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] [2022-01-11 05:35:13,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:35:13,199 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)] === [2022-01-11 05:35:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:13,200 INFO L85 PathProgramCache]: Analyzing trace with hash -545538331, now seen corresponding path program 1 times [2022-01-11 05:35:13,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:13,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723297009] [2022-01-11 05:35:13,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:13,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:13,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:13,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:13,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723297009] [2022-01-11 05:35:13,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723297009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:13,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:13,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:35:13,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236995067] [2022-01-11 05:35:13,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:13,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:35:13,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:13,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:35:13,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:35:13,279 INFO L87 Difference]: Start difference. First operand 15368 states and 28515 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:14,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:14,313 INFO L93 Difference]: Finished difference Result 61163 states and 113468 transitions. [2022-01-11 05:35:14,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:35:14,314 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 [2022-01-11 05:35:14,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:14,437 INFO L225 Difference]: With dead ends: 61163 [2022-01-11 05:35:14,437 INFO L226 Difference]: Without dead ends: 45822 [2022-01-11 05:35:14,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:14,476 INFO L933 BasicCegarLoop]: 22431 mSDtfsCounter, 33499 mSDsluCounter, 33676 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33499 SdHoareTripleChecker+Valid, 56107 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:14,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33499 Valid, 56107 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:14,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45822 states. [2022-01-11 05:35:15,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45822 to 15388. [2022-01-11 05:35:15,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15388 states, 15378 states have (on average 1.8555728963454285) internal successors, (28535), 15387 states have internal predecessors, (28535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:15,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15388 states to 15388 states and 28535 transitions. [2022-01-11 05:35:15,171 INFO L78 Accepts]: Start accepts. Automaton has 15388 states and 28535 transitions. Word has length 50 [2022-01-11 05:35:15,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:15,171 INFO L470 AbstractCegarLoop]: Abstraction has 15388 states and 28535 transitions. [2022-01-11 05:35:15,171 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) [2022-01-11 05:35:15,171 INFO L276 IsEmpty]: Start isEmpty. Operand 15388 states and 28535 transitions. [2022-01-11 05:35:15,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:35:15,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:15,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:15,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:35:15,173 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)] === [2022-01-11 05:35:15,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:15,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1466013095, now seen corresponding path program 1 times [2022-01-11 05:35:15,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:15,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229923050] [2022-01-11 05:35:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:15,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:15,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:15,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:15,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229923050] [2022-01-11 05:35:15,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229923050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:15,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:15,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:15,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943927629] [2022-01-11 05:35:15,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:15,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:15,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:15,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:15,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:15,249 INFO L87 Difference]: Start difference. First operand 15388 states and 28535 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:15,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:15,678 INFO L93 Difference]: Finished difference Result 30625 states and 56786 transitions. [2022-01-11 05:35:15,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:15,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-11 05:35:15,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:15,721 INFO L225 Difference]: With dead ends: 30625 [2022-01-11 05:35:15,721 INFO L226 Difference]: Without dead ends: 15252 [2022-01-11 05:35:15,746 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 [2022-01-11 05:35:15,747 INFO L933 BasicCegarLoop]: 11177 mSDtfsCounter, 11169 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11169 SdHoareTripleChecker+Valid, 11185 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:15,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11169 Valid, 11185 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:15,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-11 05:35:16,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-11 05:35:16,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.8542842146699907) internal successors, (28263), 15251 states have internal predecessors, (28263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:16,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28263 transitions. [2022-01-11 05:35:16,192 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28263 transitions. Word has length 51 [2022-01-11 05:35:16,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:16,192 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28263 transitions. [2022-01-11 05:35:16,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:16,192 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28263 transitions. [2022-01-11 05:35:16,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:35:16,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:16,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:16,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:35:16,194 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)] === [2022-01-11 05:35:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:16,194 INFO L85 PathProgramCache]: Analyzing trace with hash -925025759, now seen corresponding path program 1 times [2022-01-11 05:35:16,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:16,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277200657] [2022-01-11 05:35:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:16,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:16,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:16,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277200657] [2022-01-11 05:35:16,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277200657] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:16,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:16,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:35:16,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739232922] [2022-01-11 05:35:16,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:16,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:35:16,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:16,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:35:16,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:16,293 INFO L87 Difference]: Start difference. First operand 15252 states and 28263 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:16,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:16,843 INFO L93 Difference]: Finished difference Result 30482 states and 56497 transitions. [2022-01-11 05:35:16,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:35:16,843 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-11 05:35:16,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:16,878 INFO L225 Difference]: With dead ends: 30482 [2022-01-11 05:35:16,879 INFO L226 Difference]: Without dead ends: 15252 [2022-01-11 05:35:16,901 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 [2022-01-11 05:35:16,902 INFO L933 BasicCegarLoop]: 11163 mSDtfsCounter, 33495 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33495 SdHoareTripleChecker+Valid, 11181 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:16,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33495 Valid, 11181 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-11 05:35:17,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-11 05:35:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.8540217819183835) internal successors, (28259), 15251 states have internal predecessors, (28259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:17,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28259 transitions. [2022-01-11 05:35:17,324 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28259 transitions. Word has length 53 [2022-01-11 05:35:17,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:17,325 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28259 transitions. [2022-01-11 05:35:17,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:17,325 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28259 transitions. [2022-01-11 05:35:17,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-11 05:35:17,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:17,327 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] [2022-01-11 05:35:17,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:35:17,327 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)] === [2022-01-11 05:35:17,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:17,327 INFO L85 PathProgramCache]: Analyzing trace with hash 456712842, now seen corresponding path program 1 times [2022-01-11 05:35:17,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:17,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517314629] [2022-01-11 05:35:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:17,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:17,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:17,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:17,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517314629] [2022-01-11 05:35:17,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517314629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:17,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:17,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:17,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632106412] [2022-01-11 05:35:17,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:17,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:17,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:17,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:17,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:17,413 INFO L87 Difference]: Start difference. First operand 15252 states and 28259 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:17,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:17,853 INFO L93 Difference]: Finished difference Result 30476 states and 56479 transitions. [2022-01-11 05:35:17,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:35:17,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-01-11 05:35:17,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:17,888 INFO L225 Difference]: With dead ends: 30476 [2022-01-11 05:35:17,888 INFO L226 Difference]: Without dead ends: 15252 [2022-01-11 05:35:17,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:35:17,909 INFO L933 BasicCegarLoop]: 11145 mSDtfsCounter, 33462 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33462 SdHoareTripleChecker+Valid, 11178 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:17,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33462 Valid, 11178 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:17,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-11 05:35:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-11 05:35:18,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.853759349166776) internal successors, (28255), 15251 states have internal predecessors, (28255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28255 transitions. [2022-01-11 05:35:18,336 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28255 transitions. Word has length 54 [2022-01-11 05:35:18,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:18,336 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28255 transitions. [2022-01-11 05:35:18,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:18,337 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28255 transitions. [2022-01-11 05:35:18,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:35:18,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:18,339 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] [2022-01-11 05:35:18,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:35:18,339 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)] === [2022-01-11 05:35:18,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:18,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1838274156, now seen corresponding path program 1 times [2022-01-11 05:35:18,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:18,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354819549] [2022-01-11 05:35:18,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:18,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:18,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:18,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:18,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354819549] [2022-01-11 05:35:18,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354819549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:18,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:18,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:35:18,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83199245] [2022-01-11 05:35:18,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:18,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:35:18,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:18,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:35:18,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:35:18,413 INFO L87 Difference]: Start difference. First operand 15252 states and 28255 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:19,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:19,039 INFO L93 Difference]: Finished difference Result 30476 states and 56472 transitions. [2022-01-11 05:35:19,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:35:19,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-11 05:35:19,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:19,069 INFO L225 Difference]: With dead ends: 30476 [2022-01-11 05:35:19,069 INFO L226 Difference]: Without dead ends: 15252 [2022-01-11 05:35:19,093 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 [2022-01-11 05:35:19,093 INFO L933 BasicCegarLoop]: 11145 mSDtfsCounter, 44612 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44612 SdHoareTripleChecker+Valid, 11178 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:19,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44612 Valid, 11178 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:19,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-11 05:35:19,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-11 05:35:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.8534969164151687) internal successors, (28251), 15251 states have internal predecessors, (28251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:19,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28251 transitions. [2022-01-11 05:35:19,650 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28251 transitions. Word has length 55 [2022-01-11 05:35:19,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:19,650 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28251 transitions. [2022-01-11 05:35:19,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:19,650 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28251 transitions. [2022-01-11 05:35:19,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:35:19,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:19,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:19,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:35:19,652 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)] === [2022-01-11 05:35:19,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:19,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1301101469, now seen corresponding path program 1 times [2022-01-11 05:35:19,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:19,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777411312] [2022-01-11 05:35:19,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:19,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:19,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:19,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:19,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777411312] [2022-01-11 05:35:19,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777411312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:19,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:19,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:35:19,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696470482] [2022-01-11 05:35:19,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:19,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:35:19,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:19,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:35:19,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:35:19,723 INFO L87 Difference]: Start difference. First operand 15252 states and 28251 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:20,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:20,197 INFO L93 Difference]: Finished difference Result 30476 states and 56465 transitions. [2022-01-11 05:35:20,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:35:20,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 05:35:20,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:20,219 INFO L225 Difference]: With dead ends: 30476 [2022-01-11 05:35:20,219 INFO L226 Difference]: Without dead ends: 15252 [2022-01-11 05:35:20,230 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 [2022-01-11 05:35:20,231 INFO L933 BasicCegarLoop]: 11145 mSDtfsCounter, 33449 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33449 SdHoareTripleChecker+Valid, 11188 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:20,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33449 Valid, 11188 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:20,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-11 05:35:20,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-11 05:35:20,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.8532344836635612) internal successors, (28247), 15251 states have internal predecessors, (28247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:20,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28247 transitions. [2022-01-11 05:35:20,590 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28247 transitions. Word has length 56 [2022-01-11 05:35:20,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:20,590 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28247 transitions. [2022-01-11 05:35:20,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:20,590 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28247 transitions. [2022-01-11 05:35:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-11 05:35:20,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:20,592 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] [2022-01-11 05:35:20,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:35:20,592 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)] === [2022-01-11 05:35:20,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:20,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1412716895, now seen corresponding path program 1 times [2022-01-11 05:35:20,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:20,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749456821] [2022-01-11 05:35:20,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:20,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:20,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:20,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749456821] [2022-01-11 05:35:20,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749456821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:20,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:20,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:35:20,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49797621] [2022-01-11 05:35:20,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:20,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:35:20,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:20,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:35:20,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:20,655 INFO L87 Difference]: Start difference. First operand 15252 states and 28247 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:21,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:21,264 INFO L93 Difference]: Finished difference Result 30476 states and 56458 transitions. [2022-01-11 05:35:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:35:21,264 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 [2022-01-11 05:35:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:21,298 INFO L225 Difference]: With dead ends: 30476 [2022-01-11 05:35:21,298 INFO L226 Difference]: Without dead ends: 15252 [2022-01-11 05:35:21,319 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 [2022-01-11 05:35:21,319 INFO L933 BasicCegarLoop]: 11145 mSDtfsCounter, 33441 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33441 SdHoareTripleChecker+Valid, 11188 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:21,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33441 Valid, 11188 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:21,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2022-01-11 05:35:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15252. [2022-01-11 05:35:21,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 15242 states have (on average 1.8529720509119538) internal successors, (28243), 15251 states have internal predecessors, (28243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 28243 transitions. [2022-01-11 05:35:21,878 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 28243 transitions. Word has length 57 [2022-01-11 05:35:21,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:21,879 INFO L470 AbstractCegarLoop]: Abstraction has 15252 states and 28243 transitions. [2022-01-11 05:35:21,879 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) [2022-01-11 05:35:21,879 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 28243 transitions. [2022-01-11 05:35:21,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:35:21,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:21,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:21,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:35:21,881 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)] === [2022-01-11 05:35:21,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:21,881 INFO L85 PathProgramCache]: Analyzing trace with hash 161927344, now seen corresponding path program 1 times [2022-01-11 05:35:21,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:21,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644788043] [2022-01-11 05:35:21,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:21,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:21,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:21,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:21,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644788043] [2022-01-11 05:35:21,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644788043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:21,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:21,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:21,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790632647] [2022-01-11 05:35:21,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:21,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:21,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:21,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:21,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:21,961 INFO L87 Difference]: Start difference. First operand 15252 states and 28243 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:26,606 INFO L93 Difference]: Finished difference Result 125473 states and 232363 transitions. [2022-01-11 05:35:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:35:26,607 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 [2022-01-11 05:35:26,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:26,801 INFO L225 Difference]: With dead ends: 125473 [2022-01-11 05:35:26,801 INFO L226 Difference]: Without dead ends: 110335 [2022-01-11 05:35:26,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:35:26,904 INFO L933 BasicCegarLoop]: 23337 mSDtfsCounter, 75075 mSDsluCounter, 61658 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75075 SdHoareTripleChecker+Valid, 84995 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:26,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75075 Valid, 84995 Invalid, 1436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [252 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-11 05:35:26,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110335 states. [2022-01-11 05:35:28,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110335 to 28681. [2022-01-11 05:35:28,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28681 states, 28671 states have (on average 1.852080499459384) internal successors, (53101), 28680 states have internal predecessors, (53101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28681 states to 28681 states and 53101 transitions. [2022-01-11 05:35:28,380 INFO L78 Accepts]: Start accepts. Automaton has 28681 states and 53101 transitions. Word has length 58 [2022-01-11 05:35:28,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:28,380 INFO L470 AbstractCegarLoop]: Abstraction has 28681 states and 53101 transitions. [2022-01-11 05:35:28,381 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) [2022-01-11 05:35:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 28681 states and 53101 transitions. [2022-01-11 05:35:28,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:35:28,382 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:28,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:28,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:35:28,382 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)] === [2022-01-11 05:35:28,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:28,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1300772599, now seen corresponding path program 1 times [2022-01-11 05:35:28,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:28,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997351544] [2022-01-11 05:35:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:28,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:28,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:28,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:28,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997351544] [2022-01-11 05:35:28,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997351544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:28,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:28,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:28,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74763149] [2022-01-11 05:35:28,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:28,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:28,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:28,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:28,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:28,437 INFO L87 Difference]: Start difference. First operand 28681 states and 53101 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:30,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:30,326 INFO L93 Difference]: Finished difference Result 82230 states and 152386 transitions. [2022-01-11 05:35:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:30,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:35:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:30,428 INFO L225 Difference]: With dead ends: 82230 [2022-01-11 05:35:30,428 INFO L226 Difference]: Without dead ends: 55244 [2022-01-11 05:35:30,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:30,453 INFO L933 BasicCegarLoop]: 11279 mSDtfsCounter, 10302 mSDsluCounter, 11069 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10302 SdHoareTripleChecker+Valid, 22348 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:30,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10302 Valid, 22348 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:30,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55244 states. [2022-01-11 05:35:32,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55244 to 54852. [2022-01-11 05:35:32,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54852 states, 54842 states have (on average 1.855968053681485) internal successors, (101785), 54851 states have internal predecessors, (101785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54852 states to 54852 states and 101785 transitions. [2022-01-11 05:35:32,694 INFO L78 Accepts]: Start accepts. Automaton has 54852 states and 101785 transitions. Word has length 58 [2022-01-11 05:35:32,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:32,694 INFO L470 AbstractCegarLoop]: Abstraction has 54852 states and 101785 transitions. [2022-01-11 05:35:32,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:32,694 INFO L276 IsEmpty]: Start isEmpty. Operand 54852 states and 101785 transitions. [2022-01-11 05:35:32,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:35:32,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:32,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:32,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:35:32,696 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)] === [2022-01-11 05:35:32,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:32,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1069878650, now seen corresponding path program 1 times [2022-01-11 05:35:32,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:32,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57776886] [2022-01-11 05:35:32,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:32,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:32,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:32,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:32,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57776886] [2022-01-11 05:35:32,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57776886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:32,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:32,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:32,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528595622] [2022-01-11 05:35:32,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:32,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:32,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:32,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:32,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:32,742 INFO L87 Difference]: Start difference. First operand 54852 states and 101785 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:36,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:36,917 INFO L93 Difference]: Finished difference Result 162734 states and 301888 transitions. [2022-01-11 05:35:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:36,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-11 05:35:36,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:37,199 INFO L225 Difference]: With dead ends: 162734 [2022-01-11 05:35:37,200 INFO L226 Difference]: Without dead ends: 107920 [2022-01-11 05:35:37,248 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 [2022-01-11 05:35:37,249 INFO L933 BasicCegarLoop]: 11080 mSDtfsCounter, 10525 mSDsluCounter, 10530 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10525 SdHoareTripleChecker+Valid, 21610 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:37,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10525 Valid, 21610 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:35:37,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107920 states. [2022-01-11 05:35:39,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107920 to 54622. [2022-01-11 05:35:39,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54622 states, 54612 states have (on average 1.8551234160990258) internal successors, (101312), 54621 states have internal predecessors, (101312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:39,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54622 states to 54622 states and 101312 transitions. [2022-01-11 05:35:39,971 INFO L78 Accepts]: Start accepts. Automaton has 54622 states and 101312 transitions. Word has length 59 [2022-01-11 05:35:39,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:39,971 INFO L470 AbstractCegarLoop]: Abstraction has 54622 states and 101312 transitions. [2022-01-11 05:35:39,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 54622 states and 101312 transitions. [2022-01-11 05:35:39,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:35:39,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:39,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:39,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:35:39,973 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)] === [2022-01-11 05:35:39,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:39,974 INFO L85 PathProgramCache]: Analyzing trace with hash -356727233, now seen corresponding path program 1 times [2022-01-11 05:35:39,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:39,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477169686] [2022-01-11 05:35:39,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:39,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:40,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:40,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477169686] [2022-01-11 05:35:40,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477169686] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:40,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:40,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:40,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558445329] [2022-01-11 05:35:40,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:40,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:40,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:40,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:40,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:40,013 INFO L87 Difference]: Start difference. First operand 54622 states and 101312 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:45,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:45,268 INFO L93 Difference]: Finished difference Result 162726 states and 301978 transitions. [2022-01-11 05:35:45,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:45,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-11 05:35:45,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:45,580 INFO L225 Difference]: With dead ends: 162726 [2022-01-11 05:35:45,581 INFO L226 Difference]: Without dead ends: 108155 [2022-01-11 05:35:45,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:45,637 INFO L933 BasicCegarLoop]: 11395 mSDtfsCounter, 10668 mSDsluCounter, 10879 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10668 SdHoareTripleChecker+Valid, 22274 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:45,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10668 Valid, 22274 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:35:45,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108155 states. [2022-01-11 05:35:48,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108155 to 55128. [2022-01-11 05:35:48,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55128 states, 55118 states have (on average 1.8522805617039806) internal successors, (102094), 55127 states have internal predecessors, (102094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:48,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55128 states to 55128 states and 102094 transitions. [2022-01-11 05:35:48,687 INFO L78 Accepts]: Start accepts. Automaton has 55128 states and 102094 transitions. Word has length 59 [2022-01-11 05:35:48,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:48,687 INFO L470 AbstractCegarLoop]: Abstraction has 55128 states and 102094 transitions. [2022-01-11 05:35:48,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:48,687 INFO L276 IsEmpty]: Start isEmpty. Operand 55128 states and 102094 transitions. [2022-01-11 05:35:48,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:35:48,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:48,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:48,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:35:48,689 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)] === [2022-01-11 05:35:48,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:48,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1357079705, now seen corresponding path program 1 times [2022-01-11 05:35:48,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:48,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039007024] [2022-01-11 05:35:48,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:48,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:48,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:48,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039007024] [2022-01-11 05:35:48,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039007024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:48,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:48,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:48,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738441246] [2022-01-11 05:35:48,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:48,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:48,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:48,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:48,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:48,734 INFO L87 Difference]: Start difference. First operand 55128 states and 102094 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:52,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:52,184 INFO L93 Difference]: Finished difference Result 133529 states and 247440 transitions. [2022-01-11 05:35:52,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:52,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-11 05:35:52,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:52,335 INFO L225 Difference]: With dead ends: 133529 [2022-01-11 05:35:52,335 INFO L226 Difference]: Without dead ends: 81691 [2022-01-11 05:35:52,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:52,379 INFO L933 BasicCegarLoop]: 21243 mSDtfsCounter, 10940 mSDsluCounter, 10333 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10940 SdHoareTripleChecker+Valid, 31576 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:52,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10940 Valid, 31576 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:52,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81691 states. [2022-01-11 05:35:55,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81691 to 81299. [2022-01-11 05:35:55,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81299 states, 81289 states have (on average 1.854838908093346) internal successors, (150778), 81298 states have internal predecessors, (150778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:56,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81299 states to 81299 states and 150778 transitions. [2022-01-11 05:35:56,026 INFO L78 Accepts]: Start accepts. Automaton has 81299 states and 150778 transitions. Word has length 59 [2022-01-11 05:35:56,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:56,026 INFO L470 AbstractCegarLoop]: Abstraction has 81299 states and 150778 transitions. [2022-01-11 05:35:56,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:56,026 INFO L276 IsEmpty]: Start isEmpty. Operand 81299 states and 150778 transitions. [2022-01-11 05:35:56,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:35:56,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:56,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:56,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:35:56,029 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:56,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1670230533, now seen corresponding path program 1 times [2022-01-11 05:35:56,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:56,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438520791] [2022-01-11 05:35:56,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:56,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:56,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:56,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438520791] [2022-01-11 05:35:56,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438520791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:56,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:56,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:56,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857886516] [2022-01-11 05:35:56,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:56,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:56,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:56,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:56,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:56,091 INFO L87 Difference]: Start difference. First operand 81299 states and 150778 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)