/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:15:37,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:15:37,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:15:37,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:15:37,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:15:37,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:15:37,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:15:37,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:15:37,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:15:37,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:15:37,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:15:37,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:15:37,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:15:37,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:15:37,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:15:37,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:15:37,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:15:37,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:15:37,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:15:37,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:15:37,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:15:37,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:15:37,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:15:37,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:15:37,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:15:37,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:15:37,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:15:37,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:15:37,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:15:37,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:15:37,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:15:37,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:15:37,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:15:37,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:15:37,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:15:37,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:15:37,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:15:37,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:15:37,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:15:37,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:15:37,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:15:37,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:15:37,376 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:15:37,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:15:37,376 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:15:37,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:15:37,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:15:37,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:15:37,378 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:15:37,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:15:37,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:15:37,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:15:37,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:15:37,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:15:37,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:15:37,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:15:37,379 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:15:37,379 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:15:37,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:15:37,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:15:37,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:15:37,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:15:37,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:15:37,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:15:37,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:15:37,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:15:37,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:15:37,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:15:37,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:15:37,380 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:15:37,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:15:37,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:15:37,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:15:37,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:15:37,381 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:15:37,381 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:15:37,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:15:37,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:15:37,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:15:37,622 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:15:37,622 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:15:37,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c [2022-01-10 12:15:37,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e8fdc03b/2037c195c49a493d9b4eea41a1661540/FLAG83c6a4a96 [2022-01-10 12:15:38,169 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:15:38,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c [2022-01-10 12:15:38,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e8fdc03b/2037c195c49a493d9b4eea41a1661540/FLAG83c6a4a96 [2022-01-10 12:15:38,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e8fdc03b/2037c195c49a493d9b4eea41a1661540 [2022-01-10 12:15:38,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:15:38,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:15:38,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:15:38,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:15:38,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:15:38,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:15:38" (1/1) ... [2022-01-10 12:15:38,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5468b3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:38, skipping insertion in model container [2022-01-10 12:15:38,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:15:38" (1/1) ... [2022-01-10 12:15:38,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:15:38,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:15:39,180 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/email_spec3_product29.cil.c[49640,49653] [2022-01-10 12:15:39,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:15:39,236 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:15:39,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:15:39,315 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/email_spec3_product29.cil.c[49640,49653] [2022-01-10 12:15:39,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:15:39,343 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:15:39,401 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/email_spec3_product29.cil.c[49640,49653] [2022-01-10 12:15:39,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:15:39,443 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:15:39,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39 WrapperNode [2022-01-10 12:15:39,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:15:39,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:15:39,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:15:39,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:15:39,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (1/1) ... [2022-01-10 12:15:39,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (1/1) ... [2022-01-10 12:15:39,607 INFO L137 Inliner]: procedures = 134, calls = 236, calls flagged for inlining = 141, calls inlined = 332, statements flattened = 5448 [2022-01-10 12:15:39,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:15:39,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:15:39,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:15:39,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:15:39,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (1/1) ... [2022-01-10 12:15:39,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (1/1) ... [2022-01-10 12:15:39,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (1/1) ... [2022-01-10 12:15:39,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (1/1) ... [2022-01-10 12:15:39,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (1/1) ... [2022-01-10 12:15:39,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (1/1) ... [2022-01-10 12:15:39,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (1/1) ... [2022-01-10 12:15:39,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:15:39,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:15:39,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:15:39,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:15:39,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (1/1) ... [2022-01-10 12:15:39,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:15:39,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:15:39,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:15:39,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:15:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:15:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:15:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:15:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:15:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:15:40,012 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:15:40,013 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:15:41,706 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:15:41,719 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:15:41,719 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:15:41,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:15:41 BoogieIcfgContainer [2022-01-10 12:15:41,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:15:41,722 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:15:41,722 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:15:41,723 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:15:41,725 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:15:41" (1/1) ... [2022-01-10 12:15:42,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:15:42 BasicIcfg [2022-01-10 12:15:42,143 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:15:42,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:15:42,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:15:42,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:15:42,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:15:38" (1/4) ... [2022-01-10 12:15:42,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d23aa82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:15:42, skipping insertion in model container [2022-01-10 12:15:42,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:39" (2/4) ... [2022-01-10 12:15:42,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d23aa82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:15:42, skipping insertion in model container [2022-01-10 12:15:42,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:15:41" (3/4) ... [2022-01-10 12:15:42,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d23aa82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:15:42, skipping insertion in model container [2022-01-10 12:15:42,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:15:42" (4/4) ... [2022-01-10 12:15:42,148 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec3_product29.cil.cTransformedIcfg [2022-01-10 12:15:42,152 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:15:42,152 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-01-10 12:15:42,190 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:15:42,194 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:15:42,194 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-01-10 12:15:42,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 1213 states, 1200 states have (on average 1.705) internal successors, (2046), 1212 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:42,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 12:15:42,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:42,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:42,240 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:42,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:42,246 INFO L85 PathProgramCache]: Analyzing trace with hash -139209314, now seen corresponding path program 1 times [2022-01-10 12:15:42,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:42,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018063321] [2022-01-10 12:15:42,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:42,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:42,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:42,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018063321] [2022-01-10 12:15:42,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018063321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:42,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:42,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:15:42,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746402534] [2022-01-10 12:15:42,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:42,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:15:42,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:42,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:15:42,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:15:42,651 INFO L87 Difference]: Start difference. First operand has 1213 states, 1200 states have (on average 1.705) internal successors, (2046), 1212 states have internal predecessors, (2046), 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 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:42,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:42,742 INFO L93 Difference]: Finished difference Result 2116 states and 3547 transitions. [2022-01-10 12:15:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:15:42,744 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 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 67 [2022-01-10 12:15:42,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:42,759 INFO L225 Difference]: With dead ends: 2116 [2022-01-10 12:15:42,759 INFO L226 Difference]: Without dead ends: 1103 [2022-01-10 12:15:42,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:15:42,766 INFO L933 BasicCegarLoop]: 2020 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:42,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:15:42,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2022-01-10 12:15:42,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1103. [2022-01-10 12:15:42,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 1091 states have (on average 1.7094408799266727) internal successors, (1865), 1102 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1865 transitions. [2022-01-10 12:15:42,846 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1865 transitions. Word has length 67 [2022-01-10 12:15:42,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:42,846 INFO L470 AbstractCegarLoop]: Abstraction has 1103 states and 1865 transitions. [2022-01-10 12:15:42,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:42,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1865 transitions. [2022-01-10 12:15:42,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 12:15:42,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:42,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:42,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:15:42,849 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:42,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:42,849 INFO L85 PathProgramCache]: Analyzing trace with hash 835637078, now seen corresponding path program 1 times [2022-01-10 12:15:42,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:42,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008991778] [2022-01-10 12:15:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:42,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:43,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:43,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:43,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008991778] [2022-01-10 12:15:43,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008991778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:43,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:43,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:15:43,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875898209] [2022-01-10 12:15:43,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:43,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:15:43,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:43,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:15:43,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:15:43,148 INFO L87 Difference]: Start difference. First operand 1103 states and 1865 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:43,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:43,252 INFO L93 Difference]: Finished difference Result 2187 states and 3702 transitions. [2022-01-10 12:15:43,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:15:43,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2022-01-10 12:15:43,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:43,261 INFO L225 Difference]: With dead ends: 2187 [2022-01-10 12:15:43,261 INFO L226 Difference]: Without dead ends: 1103 [2022-01-10 12:15:43,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:15:43,267 INFO L933 BasicCegarLoop]: 1845 mSDtfsCounter, 1840 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:43,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1840 Valid, 1858 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:15:43,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2022-01-10 12:15:43,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1103. [2022-01-10 12:15:43,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 1091 states have (on average 1.7076076993583869) internal successors, (1863), 1102 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1863 transitions. [2022-01-10 12:15:43,313 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1863 transitions. Word has length 68 [2022-01-10 12:15:43,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:43,314 INFO L470 AbstractCegarLoop]: Abstraction has 1103 states and 1863 transitions. [2022-01-10 12:15:43,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:43,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1863 transitions. [2022-01-10 12:15:43,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 12:15:43,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:43,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:43,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:15:43,324 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:43,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:43,325 INFO L85 PathProgramCache]: Analyzing trace with hash 219839254, now seen corresponding path program 1 times [2022-01-10 12:15:43,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:43,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45583063] [2022-01-10 12:15:43,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:43,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:43,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:43,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45583063] [2022-01-10 12:15:43,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45583063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:43,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:43,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:15:43,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647309715] [2022-01-10 12:15:43,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:43,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:15:43,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:43,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:15:43,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:15:43,464 INFO L87 Difference]: Start difference. First operand 1103 states and 1863 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:43,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:43,738 INFO L93 Difference]: Finished difference Result 5383 states and 9111 transitions. [2022-01-10 12:15:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:15:43,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 70 [2022-01-10 12:15:43,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:43,752 INFO L225 Difference]: With dead ends: 5383 [2022-01-10 12:15:43,752 INFO L226 Difference]: Without dead ends: 4304 [2022-01-10 12:15:43,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:15:43,759 INFO L933 BasicCegarLoop]: 3649 mSDtfsCounter, 9098 mSDsluCounter, 5461 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9098 SdHoareTripleChecker+Valid, 9110 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:43,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9098 Valid, 9110 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:15:43,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4304 states. [2022-01-10 12:15:43,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 1103. [2022-01-10 12:15:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 1091 states have (on average 1.7066911090742438) internal successors, (1862), 1102 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:43,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1862 transitions. [2022-01-10 12:15:43,851 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1862 transitions. Word has length 70 [2022-01-10 12:15:43,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:43,852 INFO L470 AbstractCegarLoop]: Abstraction has 1103 states and 1862 transitions. [2022-01-10 12:15:43,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:43,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1862 transitions. [2022-01-10 12:15:43,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 12:15:43,854 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:43,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:43,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:15:43,855 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:43,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:43,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1041808648, now seen corresponding path program 1 times [2022-01-10 12:15:43,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:43,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78406086] [2022-01-10 12:15:43,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:43,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:43,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:43,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:43,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78406086] [2022-01-10 12:15:43,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78406086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:43,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:43,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:15:43,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589901420] [2022-01-10 12:15:43,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:43,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:15:43,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:43,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:15:43,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:15:43,939 INFO L87 Difference]: Start difference. First operand 1103 states and 1862 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:43,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:43,993 INFO L93 Difference]: Finished difference Result 2191 states and 3702 transitions. [2022-01-10 12:15:43,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:15:43,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2022-01-10 12:15:43,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:43,997 INFO L225 Difference]: With dead ends: 2191 [2022-01-10 12:15:43,997 INFO L226 Difference]: Without dead ends: 1117 [2022-01-10 12:15:43,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:15:43,999 INFO L933 BasicCegarLoop]: 1876 mSDtfsCounter, 1841 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:43,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1841 Valid, 1898 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:15:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2022-01-10 12:15:44,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1103. [2022-01-10 12:15:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 1091 states have (on average 1.7057745187901008) internal successors, (1861), 1102 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1861 transitions. [2022-01-10 12:15:44,032 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1861 transitions. Word has length 71 [2022-01-10 12:15:44,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:44,032 INFO L470 AbstractCegarLoop]: Abstraction has 1103 states and 1861 transitions. [2022-01-10 12:15:44,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:44,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1861 transitions. [2022-01-10 12:15:44,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 12:15:44,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:44,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:44,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:15:44,034 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:44,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:44,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1643408661, now seen corresponding path program 1 times [2022-01-10 12:15:44,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:44,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271648601] [2022-01-10 12:15:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:44,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:44,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:44,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:44,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271648601] [2022-01-10 12:15:44,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271648601] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:44,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:44,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:15:44,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118625284] [2022-01-10 12:15:44,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:44,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:15:44,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:44,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:15:44,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:15:44,108 INFO L87 Difference]: Start difference. First operand 1103 states and 1861 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:44,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:44,296 INFO L93 Difference]: Finished difference Result 3243 states and 5483 transitions. [2022-01-10 12:15:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:15:44,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 72 [2022-01-10 12:15:44,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:44,304 INFO L225 Difference]: With dead ends: 3243 [2022-01-10 12:15:44,304 INFO L226 Difference]: Without dead ends: 2174 [2022-01-10 12:15:44,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:15:44,306 INFO L933 BasicCegarLoop]: 1870 mSDtfsCounter, 9021 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9021 SdHoareTripleChecker+Valid, 3754 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:44,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9021 Valid, 3754 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:15:44,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2022-01-10 12:15:44,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 1103. [2022-01-10 12:15:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 1091 states have (on average 1.703941338221815) internal successors, (1859), 1102 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:44,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1859 transitions. [2022-01-10 12:15:44,424 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1859 transitions. Word has length 72 [2022-01-10 12:15:44,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:44,424 INFO L470 AbstractCegarLoop]: Abstraction has 1103 states and 1859 transitions. [2022-01-10 12:15:44,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1859 transitions. [2022-01-10 12:15:44,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-10 12:15:44,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:44,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:44,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:15:44,426 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:44,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:44,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1978159320, now seen corresponding path program 1 times [2022-01-10 12:15:44,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:44,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601407228] [2022-01-10 12:15:44,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:44,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:44,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:44,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:44,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601407228] [2022-01-10 12:15:44,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601407228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:44,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:44,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:15:44,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544497096] [2022-01-10 12:15:44,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:44,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:15:44,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:44,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:15:44,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:15:44,530 INFO L87 Difference]: Start difference. First operand 1103 states and 1859 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:45,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:45,265 INFO L93 Difference]: Finished difference Result 8918 states and 14860 transitions. [2022-01-10 12:15:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:15:45,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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 74 [2022-01-10 12:15:45,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:45,291 INFO L225 Difference]: With dead ends: 8918 [2022-01-10 12:15:45,291 INFO L226 Difference]: Without dead ends: 8132 [2022-01-10 12:15:45,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:15:45,298 INFO L933 BasicCegarLoop]: 3669 mSDtfsCounter, 15542 mSDsluCounter, 12883 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15542 SdHoareTripleChecker+Valid, 16552 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:45,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15542 Valid, 16552 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:15:45,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8132 states. [2022-01-10 12:15:45,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8132 to 1835. [2022-01-10 12:15:45,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1823 states have (on average 1.707624794295118) internal successors, (3113), 1834 states have internal predecessors, (3113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 3113 transitions. [2022-01-10 12:15:45,433 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 3113 transitions. Word has length 74 [2022-01-10 12:15:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:45,434 INFO L470 AbstractCegarLoop]: Abstraction has 1835 states and 3113 transitions. [2022-01-10 12:15:45,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 3113 transitions. [2022-01-10 12:15:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 12:15:45,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:45,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:45,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:15:45,439 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:45,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2127794456, now seen corresponding path program 1 times [2022-01-10 12:15:45,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:45,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810272040] [2022-01-10 12:15:45,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:45,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:45,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:45,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:45,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810272040] [2022-01-10 12:15:45,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810272040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:45,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:45,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:15:45,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000107893] [2022-01-10 12:15:45,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:45,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:15:45,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:45,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:15:45,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:15:45,557 INFO L87 Difference]: Start difference. First operand 1835 states and 3113 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:45,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:45,873 INFO L93 Difference]: Finished difference Result 4052 states and 6785 transitions. [2022-01-10 12:15:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:15:45,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 75 [2022-01-10 12:15:45,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:45,882 INFO L225 Difference]: With dead ends: 4052 [2022-01-10 12:15:45,883 INFO L226 Difference]: Without dead ends: 2823 [2022-01-10 12:15:45,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:15:45,886 INFO L933 BasicCegarLoop]: 1841 mSDtfsCounter, 6619 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6619 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:45,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6619 Valid, 3970 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:15:45,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2022-01-10 12:15:45,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 1835. [2022-01-10 12:15:46,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1823 states have (on average 1.7054306088864508) internal successors, (3109), 1834 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 3109 transitions. [2022-01-10 12:15:46,005 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 3109 transitions. Word has length 75 [2022-01-10 12:15:46,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:46,005 INFO L470 AbstractCegarLoop]: Abstraction has 1835 states and 3109 transitions. [2022-01-10 12:15:46,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:46,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 3109 transitions. [2022-01-10 12:15:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 12:15:46,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:46,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:46,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:15:46,007 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:46,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:46,008 INFO L85 PathProgramCache]: Analyzing trace with hash -364436994, now seen corresponding path program 1 times [2022-01-10 12:15:46,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:46,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126715173] [2022-01-10 12:15:46,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:46,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:46,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:46,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126715173] [2022-01-10 12:15:46,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126715173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:46,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:46,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:15:46,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847173608] [2022-01-10 12:15:46,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:46,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:15:46,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:46,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:15:46,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:15:46,069 INFO L87 Difference]: Start difference. First operand 1835 states and 3109 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:46,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:46,362 INFO L93 Difference]: Finished difference Result 5382 states and 9156 transitions. [2022-01-10 12:15:46,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:15:46,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 75 [2022-01-10 12:15:46,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:46,384 INFO L225 Difference]: With dead ends: 5382 [2022-01-10 12:15:46,384 INFO L226 Difference]: Without dead ends: 3584 [2022-01-10 12:15:46,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:15:46,388 INFO L933 BasicCegarLoop]: 3617 mSDtfsCounter, 5508 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5508 SdHoareTripleChecker+Valid, 5427 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:46,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5508 Valid, 5427 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:15:46,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2022-01-10 12:15:46,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 1835. [2022-01-10 12:15:46,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1823 states have (on average 1.7043335161821174) internal successors, (3107), 1834 states have internal predecessors, (3107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 3107 transitions. [2022-01-10 12:15:46,505 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 3107 transitions. Word has length 75 [2022-01-10 12:15:46,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:46,505 INFO L470 AbstractCegarLoop]: Abstraction has 1835 states and 3107 transitions. [2022-01-10 12:15:46,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 3107 transitions. [2022-01-10 12:15:46,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 12:15:46,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:46,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:46,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:15:46,507 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:46,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:46,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1294938455, now seen corresponding path program 1 times [2022-01-10 12:15:46,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:46,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465431957] [2022-01-10 12:15:46,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:46,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:46,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:46,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:46,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465431957] [2022-01-10 12:15:46,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465431957] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:46,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:46,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:15:46,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045077499] [2022-01-10 12:15:46,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:46,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:15:46,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:46,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:15:46,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:15:46,676 INFO L87 Difference]: Start difference. First operand 1835 states and 3107 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:48,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:48,179 INFO L93 Difference]: Finished difference Result 8788 states and 14590 transitions. [2022-01-10 12:15:48,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:15:48,179 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 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 76 [2022-01-10 12:15:48,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:48,192 INFO L225 Difference]: With dead ends: 8788 [2022-01-10 12:15:48,192 INFO L226 Difference]: Without dead ends: 7675 [2022-01-10 12:15:48,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:15:48,195 INFO L933 BasicCegarLoop]: 2807 mSDtfsCounter, 13894 mSDsluCounter, 16069 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13894 SdHoareTripleChecker+Valid, 18876 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:48,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13894 Valid, 18876 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 12:15:48,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-01-10 12:15:48,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 3453. [2022-01-10 12:15:48,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3453 states, 3441 states have (on average 1.7111304853240337) internal successors, (5888), 3452 states have internal predecessors, (5888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:48,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3453 states to 3453 states and 5888 transitions. [2022-01-10 12:15:48,425 INFO L78 Accepts]: Start accepts. Automaton has 3453 states and 5888 transitions. Word has length 76 [2022-01-10 12:15:48,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:48,426 INFO L470 AbstractCegarLoop]: Abstraction has 3453 states and 5888 transitions. [2022-01-10 12:15:48,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:48,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3453 states and 5888 transitions. [2022-01-10 12:15:48,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 12:15:48,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:48,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:48,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:15:48,429 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:48,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:48,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1803423443, now seen corresponding path program 1 times [2022-01-10 12:15:48,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:48,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458418034] [2022-01-10 12:15:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:48,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:48,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:48,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:48,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458418034] [2022-01-10 12:15:48,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458418034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:48,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:48,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:15:48,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903634052] [2022-01-10 12:15:48,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:48,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:15:48,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:48,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:15:48,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:15:48,540 INFO L87 Difference]: Start difference. First operand 3453 states and 5888 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:50,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:50,409 INFO L93 Difference]: Finished difference Result 15096 states and 25164 transitions. [2022-01-10 12:15:50,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:15:50,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 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 77 [2022-01-10 12:15:50,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:50,432 INFO L225 Difference]: With dead ends: 15096 [2022-01-10 12:15:50,432 INFO L226 Difference]: Without dead ends: 13037 [2022-01-10 12:15:50,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:15:50,437 INFO L933 BasicCegarLoop]: 2671 mSDtfsCounter, 16509 mSDsluCounter, 13602 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16509 SdHoareTripleChecker+Valid, 16273 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:50,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16509 Valid, 16273 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 12:15:50,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13037 states. [2022-01-10 12:15:50,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13037 to 6705. [2022-01-10 12:15:50,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6705 states, 6693 states have (on average 1.7144778126400717) internal successors, (11475), 6704 states have internal predecessors, (11475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:50,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6705 states to 6705 states and 11475 transitions. [2022-01-10 12:15:50,902 INFO L78 Accepts]: Start accepts. Automaton has 6705 states and 11475 transitions. Word has length 77 [2022-01-10 12:15:50,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:50,904 INFO L470 AbstractCegarLoop]: Abstraction has 6705 states and 11475 transitions. [2022-01-10 12:15:50,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:50,904 INFO L276 IsEmpty]: Start isEmpty. Operand 6705 states and 11475 transitions. [2022-01-10 12:15:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 12:15:50,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:50,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:50,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:15:50,921 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:50,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:50,922 INFO L85 PathProgramCache]: Analyzing trace with hash -273785900, now seen corresponding path program 1 times [2022-01-10 12:15:50,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:50,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574721536] [2022-01-10 12:15:50,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:50,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:51,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:51,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:51,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574721536] [2022-01-10 12:15:51,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574721536] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:51,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:51,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:15:51,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986175557] [2022-01-10 12:15:51,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:51,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:15:51,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:51,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:15:51,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:15:51,037 INFO L87 Difference]: Start difference. First operand 6705 states and 11475 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:53,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:53,059 INFO L93 Difference]: Finished difference Result 27793 states and 46179 transitions. [2022-01-10 12:15:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:15:53,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 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 77 [2022-01-10 12:15:53,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:53,109 INFO L225 Difference]: With dead ends: 27793 [2022-01-10 12:15:53,109 INFO L226 Difference]: Without dead ends: 24466 [2022-01-10 12:15:53,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:15:53,121 INFO L933 BasicCegarLoop]: 1843 mSDtfsCounter, 8390 mSDsluCounter, 6935 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8390 SdHoareTripleChecker+Valid, 8778 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:53,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8390 Valid, 8778 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:15:53,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24466 states. [2022-01-10 12:15:54,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24466 to 12638. [2022-01-10 12:15:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12638 states, 12626 states have (on average 1.6900047520988437) internal successors, (21338), 12637 states have internal predecessors, (21338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:54,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12638 states to 12638 states and 21338 transitions. [2022-01-10 12:15:54,323 INFO L78 Accepts]: Start accepts. Automaton has 12638 states and 21338 transitions. Word has length 77 [2022-01-10 12:15:54,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:54,323 INFO L470 AbstractCegarLoop]: Abstraction has 12638 states and 21338 transitions. [2022-01-10 12:15:54,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:54,324 INFO L276 IsEmpty]: Start isEmpty. Operand 12638 states and 21338 transitions. [2022-01-10 12:15:54,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 12:15:54,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:54,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:54,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:15:54,352 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:54,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:54,353 INFO L85 PathProgramCache]: Analyzing trace with hash 225121298, now seen corresponding path program 1 times [2022-01-10 12:15:54,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:54,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390514644] [2022-01-10 12:15:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:54,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:54,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:54,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390514644] [2022-01-10 12:15:54,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390514644] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:54,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:54,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 12:15:54,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11109775] [2022-01-10 12:15:54,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:54,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:15:54,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:54,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:15:54,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:15:54,558 INFO L87 Difference]: Start difference. First operand 12638 states and 21338 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:56,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:56,139 INFO L93 Difference]: Finished difference Result 23520 states and 39212 transitions. [2022-01-10 12:15:56,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 12:15:56,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 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 78 [2022-01-10 12:15:56,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:56,165 INFO L225 Difference]: With dead ends: 23520 [2022-01-10 12:15:56,166 INFO L226 Difference]: Without dead ends: 15608 [2022-01-10 12:15:56,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:15:56,180 INFO L933 BasicCegarLoop]: 2028 mSDtfsCounter, 9080 mSDsluCounter, 7795 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9080 SdHoareTripleChecker+Valid, 9823 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:56,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9080 Valid, 9823 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:15:56,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15608 states. [2022-01-10 12:15:57,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15608 to 11438. [2022-01-10 12:15:57,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11438 states, 11426 states have (on average 1.6826535970593384) internal successors, (19226), 11437 states have internal predecessors, (19226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:57,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11438 states to 11438 states and 19226 transitions. [2022-01-10 12:15:57,129 INFO L78 Accepts]: Start accepts. Automaton has 11438 states and 19226 transitions. Word has length 78 [2022-01-10 12:15:57,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:57,129 INFO L470 AbstractCegarLoop]: Abstraction has 11438 states and 19226 transitions. [2022-01-10 12:15:57,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:57,129 INFO L276 IsEmpty]: Start isEmpty. Operand 11438 states and 19226 transitions. [2022-01-10 12:15:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 12:15:57,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:57,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:57,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:15:57,137 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:15:57,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:57,137 INFO L85 PathProgramCache]: Analyzing trace with hash -721763374, now seen corresponding path program 1 times [2022-01-10 12:15:57,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:57,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435680434] [2022-01-10 12:15:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:57,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:57,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:57,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:57,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435680434] [2022-01-10 12:15:57,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435680434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:57,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:57,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:15:57,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551420177] [2022-01-10 12:15:57,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:57,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:15:57,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:57,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:15:57,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:15:57,256 INFO L87 Difference]: Start difference. First operand 11438 states and 19226 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:07,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:07,095 INFO L93 Difference]: Finished difference Result 97512 states and 160445 transitions. [2022-01-10 12:16:07,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-10 12:16:07,095 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 79 [2022-01-10 12:16:07,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:07,258 INFO L225 Difference]: With dead ends: 97512 [2022-01-10 12:16:07,258 INFO L226 Difference]: Without dead ends: 91168 [2022-01-10 12:16:07,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756 [2022-01-10 12:16:07,294 INFO L933 BasicCegarLoop]: 7373 mSDtfsCounter, 13575 mSDsluCounter, 26324 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13575 SdHoareTripleChecker+Valid, 33697 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:07,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13575 Valid, 33697 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 12:16:07,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91168 states. [2022-01-10 12:16:09,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91168 to 17024. [2022-01-10 12:16:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17024 states, 17012 states have (on average 1.6722313660945216) internal successors, (28448), 17023 states have internal predecessors, (28448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:09,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17024 states to 17024 states and 28448 transitions. [2022-01-10 12:16:09,609 INFO L78 Accepts]: Start accepts. Automaton has 17024 states and 28448 transitions. Word has length 79 [2022-01-10 12:16:09,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:16:09,609 INFO L470 AbstractCegarLoop]: Abstraction has 17024 states and 28448 transitions. [2022-01-10 12:16:09,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:09,609 INFO L276 IsEmpty]: Start isEmpty. Operand 17024 states and 28448 transitions. [2022-01-10 12:16:09,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 12:16:09,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:16:09,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:16:09,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:16:09,617 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:16:09,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:16:09,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1702176103, now seen corresponding path program 1 times [2022-01-10 12:16:09,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:16:09,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386132816] [2022-01-10 12:16:09,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:16:09,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:16:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:16:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:16:09,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:16:09,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386132816] [2022-01-10 12:16:09,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386132816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:16:09,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:16:09,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:16:09,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511609080] [2022-01-10 12:16:09,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:16:09,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:16:09,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:16:09,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:16:09,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:16:09,708 INFO L87 Difference]: Start difference. First operand 17024 states and 28448 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:20,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:20,741 INFO L93 Difference]: Finished difference Result 106856 states and 177770 transitions. [2022-01-10 12:16:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:16:20,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 80 [2022-01-10 12:16:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:20,901 INFO L225 Difference]: With dead ends: 106856 [2022-01-10 12:16:20,901 INFO L226 Difference]: Without dead ends: 96402 [2022-01-10 12:16:20,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:16:20,934 INFO L933 BasicCegarLoop]: 3261 mSDtfsCounter, 11450 mSDsluCounter, 9007 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11450 SdHoareTripleChecker+Valid, 12268 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:20,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11450 Valid, 12268 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:16:21,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96402 states. [2022-01-10 12:16:25,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96402 to 34076. [2022-01-10 12:16:25,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34076 states, 34064 states have (on average 1.6693283231564116) internal successors, (56864), 34075 states have internal predecessors, (56864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:25,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34076 states to 34076 states and 56864 transitions. [2022-01-10 12:16:25,633 INFO L78 Accepts]: Start accepts. Automaton has 34076 states and 56864 transitions. Word has length 80 [2022-01-10 12:16:25,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:16:25,634 INFO L470 AbstractCegarLoop]: Abstraction has 34076 states and 56864 transitions. [2022-01-10 12:16:25,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:25,634 INFO L276 IsEmpty]: Start isEmpty. Operand 34076 states and 56864 transitions. [2022-01-10 12:16:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 12:16:25,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:16:25,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:16:25,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:16:25,651 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 12:16:25,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:16:25,651 INFO L85 PathProgramCache]: Analyzing trace with hash 438467595, now seen corresponding path program 1 times [2022-01-10 12:16:25,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:16:25,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462066714] [2022-01-10 12:16:25,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:16:25,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:16:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:16:25,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:16:25,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:16:25,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462066714] [2022-01-10 12:16:25,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462066714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:16:25,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:16:25,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:16:25,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616198417] [2022-01-10 12:16:25,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:16:25,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:16:25,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:16:25,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:16:25,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:16:25,854 INFO L87 Difference]: Start difference. First operand 34076 states and 56864 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:41,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:41,542 INFO L93 Difference]: Finished difference Result 137528 states and 226855 transitions. [2022-01-10 12:16:41,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 12:16:41,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 81 [2022-01-10 12:16:41,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:41,875 INFO L225 Difference]: With dead ends: 137528 [2022-01-10 12:16:41,875 INFO L226 Difference]: Without dead ends: 113918 [2022-01-10 12:16:41,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2022-01-10 12:16:41,918 INFO L933 BasicCegarLoop]: 3676 mSDtfsCounter, 17020 mSDsluCounter, 11968 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17020 SdHoareTripleChecker+Valid, 15644 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:41,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17020 Valid, 15644 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 12:16:41,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113918 states.