/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_spec8_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:20:42,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:20:42,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:20:42,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:20:42,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:20:42,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:20:42,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:20:42,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:20:42,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:20:42,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:20:42,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:20:42,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:20:42,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:20:42,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:20:42,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:20:42,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:20:42,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:20:42,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:20:42,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:20:42,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:20:42,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:20:42,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:20:42,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:20:42,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:20:42,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:20:42,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:20:42,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:20:42,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:20:42,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:20:42,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:20:42,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:20:42,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:20:42,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:20:42,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:20:42,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:20:42,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:20:42,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:20:42,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:20:42,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:20:42,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:20:42,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:20:42,168 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 12:20:42,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:20:42,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:20:42,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:20:42,190 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:20:42,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:20:42,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:20:42,192 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:20:42,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:20:42,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:20:42,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:20:42,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:20:42,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:20:42,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:20:42,193 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:20:42,193 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:20:42,193 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:20:42,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:20:42,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:20:42,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:20:42,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:20:42,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:20:42,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:20:42,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:20:42,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:20:42,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:20:42,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:20:42,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:20:42,196 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:20:42,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:20:42,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:20:42,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:20:42,196 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:20:42,197 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:20:42,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:20:42,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:20:42,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:20:42,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:20:42,446 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:20:42,447 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:20:42,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product26.cil.c [2022-01-10 12:20:42,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/065964248/5b3ab5fb1e4b40658cbc3817286d6b50/FLAG5d8c72627 [2022-01-10 12:20:43,081 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:20:43,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product26.cil.c [2022-01-10 12:20:43,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/065964248/5b3ab5fb1e4b40658cbc3817286d6b50/FLAG5d8c72627 [2022-01-10 12:20:43,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/065964248/5b3ab5fb1e4b40658cbc3817286d6b50 [2022-01-10 12:20:43,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:20:43,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:20:43,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:20:43,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:20:43,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:20:43,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:20:43" (1/1) ... [2022-01-10 12:20:43,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d8b485e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:43, skipping insertion in model container [2022-01-10 12:20:43,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:20:43" (1/1) ... [2022-01-10 12:20:43,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:20:43,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:20:43,950 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_spec8_product26.cil.c[14808,14821] [2022-01-10 12:20:44,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:20:44,113 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:20:44,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:20:44,162 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_spec8_product26.cil.c[14808,14821] [2022-01-10 12:20:44,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:20:44,229 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:20:44,257 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_spec8_product26.cil.c[14808,14821] [2022-01-10 12:20:44,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:20:44,317 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:20:44,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44 WrapperNode [2022-01-10 12:20:44,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:20:44,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:20:44,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:20:44,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:20:44,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (1/1) ... [2022-01-10 12:20:44,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (1/1) ... [2022-01-10 12:20:44,533 INFO L137 Inliner]: procedures = 134, calls = 230, calls flagged for inlining = 134, calls inlined = 362, statements flattened = 5291 [2022-01-10 12:20:44,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:20:44,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:20:44,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:20:44,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:20:44,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (1/1) ... [2022-01-10 12:20:44,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (1/1) ... [2022-01-10 12:20:44,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (1/1) ... [2022-01-10 12:20:44,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (1/1) ... [2022-01-10 12:20:44,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (1/1) ... [2022-01-10 12:20:44,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (1/1) ... [2022-01-10 12:20:44,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (1/1) ... [2022-01-10 12:20:44,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:20:44,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:20:44,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:20:44,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:20:44,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (1/1) ... [2022-01-10 12:20:44,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:20:44,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:20:44,709 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 12:20:44,715 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 12:20:44,737 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:20:44,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:20:44,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:20:44,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:20:44,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:20:44,936 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:20:44,937 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:20:47,116 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:20:47,132 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:20:47,132 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:20:47,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:20:47 BoogieIcfgContainer [2022-01-10 12:20:47,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:20:47,136 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:20:47,136 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:20:47,138 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:20:47,140 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:20:47" (1/1) ... [2022-01-10 12:20:47,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:20:47 BasicIcfg [2022-01-10 12:20:47,631 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:20:47,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:20:47,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:20:47,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:20:47,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:20:43" (1/4) ... [2022-01-10 12:20:47,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726cc192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:20:47, skipping insertion in model container [2022-01-10 12:20:47,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:44" (2/4) ... [2022-01-10 12:20:47,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726cc192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:20:47, skipping insertion in model container [2022-01-10 12:20:47,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:20:47" (3/4) ... [2022-01-10 12:20:47,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726cc192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:20:47, skipping insertion in model container [2022-01-10 12:20:47,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:20:47" (4/4) ... [2022-01-10 12:20:47,640 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_product26.cil.cTransformedIcfg [2022-01-10 12:20:47,646 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:20:47,646 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 12:20:47,703 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:20:47,709 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 12:20:47,710 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 12:20:47,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 1137 states, 1130 states have (on average 1.665486725663717) internal successors, (1882), 1136 states have internal predecessors, (1882), 0 states have call successors, (0), 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 12:20:47,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 12:20:47,762 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:47,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:20:47,765 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:47,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:47,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1963789067, now seen corresponding path program 1 times [2022-01-10 12:20:47,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:47,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884691485] [2022-01-10 12:20:47,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:47,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:48,213 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 12:20:48,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:48,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884691485] [2022-01-10 12:20:48,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884691485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:48,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:48,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:20:48,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118572777] [2022-01-10 12:20:48,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:48,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:20:48,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:48,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:20:48,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:20:48,247 INFO L87 Difference]: Start difference. First operand has 1137 states, 1130 states have (on average 1.665486725663717) internal successors, (1882), 1136 states have internal predecessors, (1882), 0 states have call successors, (0), 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 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:48,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:48,341 INFO L93 Difference]: Finished difference Result 1960 states and 3209 transitions. [2022-01-10 12:20:48,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:20:48,343 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-10 12:20:48,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:48,360 INFO L225 Difference]: With dead ends: 1960 [2022-01-10 12:20:48,360 INFO L226 Difference]: Without dead ends: 954 [2022-01-10 12:20:48,367 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 12:20:48,370 INFO L933 BasicCegarLoop]: 1868 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, 1868 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 12:20:48,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:20:48,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-01-10 12:20:48,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2022-01-10 12:20:48,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 948 states have (on average 1.6793248945147679) internal successors, (1592), 953 states have internal predecessors, (1592), 0 states have call successors, (0), 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 12:20:48,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1592 transitions. [2022-01-10 12:20:48,463 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1592 transitions. Word has length 51 [2022-01-10 12:20:48,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:48,463 INFO L470 AbstractCegarLoop]: Abstraction has 954 states and 1592 transitions. [2022-01-10 12:20:48,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:48,464 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1592 transitions. [2022-01-10 12:20:48,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 12:20:48,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:48,466 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] [2022-01-10 12:20:48,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:20:48,466 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:48,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:48,467 INFO L85 PathProgramCache]: Analyzing trace with hash -899021857, now seen corresponding path program 1 times [2022-01-10 12:20:48,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:48,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648017049] [2022-01-10 12:20:48,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:48,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:48,613 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 12:20:48,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:48,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648017049] [2022-01-10 12:20:48,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648017049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:48,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:48,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:20:48,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420081382] [2022-01-10 12:20:48,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:48,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:20:48,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:48,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:20:48,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:20:48,617 INFO L87 Difference]: Start difference. First operand 954 states and 1592 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 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 12:20:48,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:48,735 INFO L93 Difference]: Finished difference Result 1511 states and 2485 transitions. [2022-01-10 12:20:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:20:48,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-10 12:20:48,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:48,744 INFO L225 Difference]: With dead ends: 1511 [2022-01-10 12:20:48,744 INFO L226 Difference]: Without dead ends: 956 [2022-01-10 12:20:48,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:20:48,748 INFO L933 BasicCegarLoop]: 1572 mSDtfsCounter, 696 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:20:48,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 2413 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:20:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-01-10 12:20:48,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 942. [2022-01-10 12:20:48,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.6780383795309168) internal successors, (1574), 941 states have internal predecessors, (1574), 0 states have call successors, (0), 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 12:20:48,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1574 transitions. [2022-01-10 12:20:48,791 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1574 transitions. Word has length 52 [2022-01-10 12:20:48,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:48,791 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1574 transitions. [2022-01-10 12:20:48,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 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 12:20:48,792 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1574 transitions. [2022-01-10 12:20:48,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 12:20:48,794 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:48,794 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:20:48,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:20:48,795 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:48,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:48,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1897772641, now seen corresponding path program 1 times [2022-01-10 12:20:48,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:48,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957284659] [2022-01-10 12:20:48,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:48,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:49,035 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 12:20:49,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:49,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957284659] [2022-01-10 12:20:49,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957284659] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:49,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:49,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:20:49,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778155099] [2022-01-10 12:20:49,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:49,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:20:49,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:49,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:20:49,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:20:49,040 INFO L87 Difference]: Start difference. First operand 942 states and 1574 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 12:20:49,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:49,153 INFO L93 Difference]: Finished difference Result 1865 states and 3120 transitions. [2022-01-10 12:20:49,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:20:49,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 12:20:49,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:49,159 INFO L225 Difference]: With dead ends: 1865 [2022-01-10 12:20:49,159 INFO L226 Difference]: Without dead ends: 942 [2022-01-10 12:20:49,167 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 12:20:49,170 INFO L933 BasicCegarLoop]: 1552 mSDtfsCounter, 1549 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:20:49,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1549 Valid, 1565 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:20:49,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-01-10 12:20:49,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-01-10 12:20:49,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.67590618336887) internal successors, (1572), 941 states have internal predecessors, (1572), 0 states have call successors, (0), 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 12:20:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1572 transitions. [2022-01-10 12:20:49,214 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1572 transitions. Word has length 97 [2022-01-10 12:20:49,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:49,215 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1572 transitions. [2022-01-10 12:20:49,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 12:20:49,217 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1572 transitions. [2022-01-10 12:20:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 12:20:49,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:49,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:20:49,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:20:49,223 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:49,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:49,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1345652385, now seen corresponding path program 1 times [2022-01-10 12:20:49,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:49,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174370487] [2022-01-10 12:20:49,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:49,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:49,402 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 12:20:49,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:49,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174370487] [2022-01-10 12:20:49,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174370487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:49,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:49,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:20:49,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751064165] [2022-01-10 12:20:49,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:49,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:20:49,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:49,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:20:49,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:20:49,406 INFO L87 Difference]: Start difference. First operand 942 states and 1572 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 12:20:49,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:49,801 INFO L93 Difference]: Finished difference Result 4578 states and 7656 transitions. [2022-01-10 12:20:49,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:20:49,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-10 12:20:49,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:49,818 INFO L225 Difference]: With dead ends: 4578 [2022-01-10 12:20:49,818 INFO L226 Difference]: Without dead ends: 3660 [2022-01-10 12:20:49,822 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 12:20:49,831 INFO L933 BasicCegarLoop]: 3067 mSDtfsCounter, 7643 mSDsluCounter, 4588 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7643 SdHoareTripleChecker+Valid, 7655 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 12:20:49,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7643 Valid, 7655 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:20:49,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3660 states. [2022-01-10 12:20:49,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3660 to 942. [2022-01-10 12:20:49,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.6748400852878464) internal successors, (1571), 941 states have internal predecessors, (1571), 0 states have call successors, (0), 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 12:20:49,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1571 transitions. [2022-01-10 12:20:49,908 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1571 transitions. Word has length 99 [2022-01-10 12:20:49,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:49,908 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1571 transitions. [2022-01-10 12:20:49,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 12:20:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1571 transitions. [2022-01-10 12:20:49,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 12:20:49,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:49,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:20:49,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:20:49,914 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:49,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:49,914 INFO L85 PathProgramCache]: Analyzing trace with hash 231832537, now seen corresponding path program 1 times [2022-01-10 12:20:49,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:49,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924029454] [2022-01-10 12:20:49,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:49,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:50,045 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 12:20:50,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924029454] [2022-01-10 12:20:50,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924029454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:50,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:50,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:20:50,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114475007] [2022-01-10 12:20:50,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:50,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:20:50,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:50,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:20:50,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:20:50,048 INFO L87 Difference]: Start difference. First operand 942 states and 1571 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 12:20:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:50,140 INFO L93 Difference]: Finished difference Result 1869 states and 3120 transitions. [2022-01-10 12:20:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:20:50,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-01-10 12:20:50,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:50,145 INFO L225 Difference]: With dead ends: 1869 [2022-01-10 12:20:50,145 INFO L226 Difference]: Without dead ends: 956 [2022-01-10 12:20:50,146 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 12:20:50,147 INFO L933 BasicCegarLoop]: 1585 mSDtfsCounter, 1550 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 1607 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 12:20:50,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1550 Valid, 1607 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:20:50,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-01-10 12:20:50,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 942. [2022-01-10 12:20:50,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.6737739872068231) internal successors, (1570), 941 states have internal predecessors, (1570), 0 states have call successors, (0), 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 12:20:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1570 transitions. [2022-01-10 12:20:50,201 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1570 transitions. Word has length 100 [2022-01-10 12:20:50,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:50,205 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1570 transitions. [2022-01-10 12:20:50,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 12:20:50,206 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1570 transitions. [2022-01-10 12:20:50,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 12:20:50,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:50,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:20:50,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:20:50,208 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:50,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:50,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1047428928, now seen corresponding path program 1 times [2022-01-10 12:20:50,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:50,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443044331] [2022-01-10 12:20:50,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:50,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:50,352 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 12:20:50,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:50,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443044331] [2022-01-10 12:20:50,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443044331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:50,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:50,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:20:50,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013070755] [2022-01-10 12:20:50,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:50,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:20:50,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:50,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:20:50,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:20:50,354 INFO L87 Difference]: Start difference. First operand 942 states and 1570 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 12:20:50,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:50,614 INFO L93 Difference]: Finished difference Result 2760 states and 4610 transitions. [2022-01-10 12:20:50,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:20:50,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-10 12:20:50,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:50,624 INFO L225 Difference]: With dead ends: 2760 [2022-01-10 12:20:50,624 INFO L226 Difference]: Without dead ends: 1852 [2022-01-10 12:20:50,626 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 12:20:50,627 INFO L933 BasicCegarLoop]: 1579 mSDtfsCounter, 7566 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7566 SdHoareTripleChecker+Valid, 3172 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 12:20:50,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7566 Valid, 3172 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:20:50,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-01-10 12:20:50,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 942. [2022-01-10 12:20:50,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.671641791044776) internal successors, (1568), 941 states have internal predecessors, (1568), 0 states have call successors, (0), 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 12:20:50,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1568 transitions. [2022-01-10 12:20:50,708 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1568 transitions. Word has length 101 [2022-01-10 12:20:50,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:50,709 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1568 transitions. [2022-01-10 12:20:50,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 12:20:50,710 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1568 transitions. [2022-01-10 12:20:50,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 12:20:50,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:50,712 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, 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 12:20:50,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:20:50,712 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:50,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:50,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1565378083, now seen corresponding path program 1 times [2022-01-10 12:20:50,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:50,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650837971] [2022-01-10 12:20:50,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:50,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:50,889 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 12:20:50,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:50,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650837971] [2022-01-10 12:20:50,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650837971] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:50,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:50,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:20:50,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85754470] [2022-01-10 12:20:50,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:50,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:20:50,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:50,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:20:50,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:20:50,892 INFO L87 Difference]: Start difference. First operand 942 states and 1568 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 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 12:20:52,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:52,460 INFO L93 Difference]: Finished difference Result 5252 states and 8494 transitions. [2022-01-10 12:20:52,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:20:52,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-01-10 12:20:52,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:52,479 INFO L225 Difference]: With dead ends: 5252 [2022-01-10 12:20:52,479 INFO L226 Difference]: Without dead ends: 4675 [2022-01-10 12:20:52,482 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 12:20:52,483 INFO L933 BasicCegarLoop]: 2482 mSDtfsCounter, 12065 mSDsluCounter, 14072 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12065 SdHoareTripleChecker+Valid, 16554 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 12:20:52,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12065 Valid, 16554 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 12:20:52,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4675 states. [2022-01-10 12:20:52,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4675 to 1792. [2022-01-10 12:20:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1788 states have (on average 1.6761744966442953) internal successors, (2997), 1791 states have internal predecessors, (2997), 0 states have call successors, (0), 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 12:20:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2997 transitions. [2022-01-10 12:20:52,647 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2997 transitions. Word has length 103 [2022-01-10 12:20:52,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:52,647 INFO L470 AbstractCegarLoop]: Abstraction has 1792 states and 2997 transitions. [2022-01-10 12:20:52,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 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 12:20:52,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2997 transitions. [2022-01-10 12:20:52,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 12:20:52,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:52,651 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, 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 12:20:52,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:20:52,651 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:52,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:52,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1210733462, now seen corresponding path program 1 times [2022-01-10 12:20:52,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:52,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126054695] [2022-01-10 12:20:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:52,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:52,740 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 12:20:52,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:52,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126054695] [2022-01-10 12:20:52,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126054695] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:52,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:52,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:20:52,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411180415] [2022-01-10 12:20:52,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:52,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:20:52,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:52,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:20:52,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:20:52,742 INFO L87 Difference]: Start difference. First operand 1792 states and 2997 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 12:20:53,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:53,008 INFO L93 Difference]: Finished difference Result 2973 states and 4893 transitions. [2022-01-10 12:20:53,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:20:53,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-01-10 12:20:53,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:53,018 INFO L225 Difference]: With dead ends: 2973 [2022-01-10 12:20:53,018 INFO L226 Difference]: Without dead ends: 2345 [2022-01-10 12:20:53,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:20:53,020 INFO L933 BasicCegarLoop]: 1562 mSDtfsCounter, 2796 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:20:53,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2796 Valid, 3448 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:20:53,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2022-01-10 12:20:53,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1792. [2022-01-10 12:20:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1788 states have (on average 1.6756152125279642) internal successors, (2996), 1791 states have internal predecessors, (2996), 0 states have call successors, (0), 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 12:20:53,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2996 transitions. [2022-01-10 12:20:53,170 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2996 transitions. Word has length 104 [2022-01-10 12:20:53,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:53,171 INFO L470 AbstractCegarLoop]: Abstraction has 1792 states and 2996 transitions. [2022-01-10 12:20:53,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 12:20:53,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2996 transitions. [2022-01-10 12:20:53,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 12:20:53,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:53,174 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, 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 12:20:53,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:20:53,175 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:53,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:53,175 INFO L85 PathProgramCache]: Analyzing trace with hash 602656599, now seen corresponding path program 1 times [2022-01-10 12:20:53,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:53,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776839042] [2022-01-10 12:20:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:53,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:53,332 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 12:20:53,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:53,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776839042] [2022-01-10 12:20:53,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776839042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:53,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:53,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:20:53,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037257701] [2022-01-10 12:20:53,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:53,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:20:53,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:53,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:20:53,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:20:53,335 INFO L87 Difference]: Start difference. First operand 1792 states and 2996 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 12:20:54,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:54,642 INFO L93 Difference]: Finished difference Result 8879 states and 14282 transitions. [2022-01-10 12:20:54,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:20:54,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-01-10 12:20:54,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:54,674 INFO L225 Difference]: With dead ends: 8879 [2022-01-10 12:20:54,674 INFO L226 Difference]: Without dead ends: 7310 [2022-01-10 12:20:54,680 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 12:20:54,680 INFO L933 BasicCegarLoop]: 1557 mSDtfsCounter, 8867 mSDsluCounter, 5300 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8867 SdHoareTripleChecker+Valid, 6857 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:20:54,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8867 Valid, 6857 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:20:54,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2022-01-10 12:20:55,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 3964. [2022-01-10 12:20:55,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3960 states have (on average 1.6318181818181818) internal successors, (6462), 3963 states have internal predecessors, (6462), 0 states have call successors, (0), 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 12:20:55,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 6462 transitions. [2022-01-10 12:20:55,204 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 6462 transitions. Word has length 104 [2022-01-10 12:20:55,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:55,205 INFO L470 AbstractCegarLoop]: Abstraction has 3964 states and 6462 transitions. [2022-01-10 12:20:55,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 12:20:55,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 6462 transitions. [2022-01-10 12:20:55,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 12:20:55,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:55,214 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, 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 12:20:55,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:20:55,214 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:55,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:55,215 INFO L85 PathProgramCache]: Analyzing trace with hash -617876652, now seen corresponding path program 1 times [2022-01-10 12:20:55,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:55,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888485657] [2022-01-10 12:20:55,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:55,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:55,417 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 12:20:55,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:55,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888485657] [2022-01-10 12:20:55,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888485657] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:55,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:55,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 12:20:55,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366731681] [2022-01-10 12:20:55,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:55,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:20:55,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:55,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:20:55,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:20:55,419 INFO L87 Difference]: Start difference. First operand 3964 states and 6462 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 12:20:56,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:56,556 INFO L93 Difference]: Finished difference Result 7682 states and 12348 transitions. [2022-01-10 12:20:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 12:20:56,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-10 12:20:56,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:56,570 INFO L225 Difference]: With dead ends: 7682 [2022-01-10 12:20:56,571 INFO L226 Difference]: Without dead ends: 5390 [2022-01-10 12:20:56,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:20:56,577 INFO L933 BasicCegarLoop]: 1673 mSDtfsCounter, 8334 mSDsluCounter, 6736 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8334 SdHoareTripleChecker+Valid, 8409 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:20:56,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8334 Valid, 8409 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:20:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2022-01-10 12:20:56,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 3258. [2022-01-10 12:20:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3258 states, 3254 states have (on average 1.633681622618316) internal successors, (5316), 3257 states have internal predecessors, (5316), 0 states have call successors, (0), 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 12:20:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3258 states to 3258 states and 5316 transitions. [2022-01-10 12:20:56,963 INFO L78 Accepts]: Start accepts. Automaton has 3258 states and 5316 transitions. Word has length 105 [2022-01-10 12:20:56,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:56,963 INFO L470 AbstractCegarLoop]: Abstraction has 3258 states and 5316 transitions. [2022-01-10 12:20:56,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 12:20:56,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3258 states and 5316 transitions. [2022-01-10 12:20:56,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 12:20:56,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:56,970 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, 1, 1, 1, 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 12:20:56,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:20:56,970 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:56,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:56,971 INFO L85 PathProgramCache]: Analyzing trace with hash -464414241, now seen corresponding path program 1 times [2022-01-10 12:20:56,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:56,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357877579] [2022-01-10 12:20:56,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:56,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:57,085 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 12:20:57,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:57,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357877579] [2022-01-10 12:20:57,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357877579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:57,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:57,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:20:57,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968677381] [2022-01-10 12:20:57,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:57,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:20:57,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:57,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:20:57,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:20:57,088 INFO L87 Difference]: Start difference. First operand 3258 states and 5316 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 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 12:20:58,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:58,643 INFO L93 Difference]: Finished difference Result 16113 states and 25703 transitions. [2022-01-10 12:20:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:20:58,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-01-10 12:20:58,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:58,684 INFO L225 Difference]: With dead ends: 16113 [2022-01-10 12:20:58,684 INFO L226 Difference]: Without dead ends: 13561 [2022-01-10 12:20:58,693 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 12:20:58,694 INFO L933 BasicCegarLoop]: 1823 mSDtfsCounter, 6402 mSDsluCounter, 5403 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6402 SdHoareTripleChecker+Valid, 7226 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:20:58,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6402 Valid, 7226 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:20:58,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13561 states. [2022-01-10 12:20:59,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13561 to 6477. [2022-01-10 12:20:59,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6477 states, 6473 states have (on average 1.629074617642515) internal successors, (10545), 6476 states have internal predecessors, (10545), 0 states have call successors, (0), 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 12:20:59,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6477 states to 6477 states and 10545 transitions. [2022-01-10 12:20:59,376 INFO L78 Accepts]: Start accepts. Automaton has 6477 states and 10545 transitions. Word has length 108 [2022-01-10 12:20:59,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:59,376 INFO L470 AbstractCegarLoop]: Abstraction has 6477 states and 10545 transitions. [2022-01-10 12:20:59,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 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 12:20:59,377 INFO L276 IsEmpty]: Start isEmpty. Operand 6477 states and 10545 transitions. [2022-01-10 12:20:59,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 12:20:59,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:59,388 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, 1, 1, 1, 1, 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 12:20:59,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:20:59,388 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:59,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:59,389 INFO L85 PathProgramCache]: Analyzing trace with hash -348019702, now seen corresponding path program 1 times [2022-01-10 12:20:59,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:59,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370230944] [2022-01-10 12:20:59,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:59,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:59,589 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 12:20:59,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:59,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370230944] [2022-01-10 12:20:59,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370230944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:59,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:59,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:20:59,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729476137] [2022-01-10 12:20:59,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:59,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:20:59,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:59,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:20:59,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:20:59,591 INFO L87 Difference]: Start difference. First operand 6477 states and 10545 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 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 12:21:04,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:04,305 INFO L93 Difference]: Finished difference Result 38219 states and 60696 transitions. [2022-01-10 12:21:04,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:21:04,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-01-10 12:21:04,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:04,401 INFO L225 Difference]: With dead ends: 38219 [2022-01-10 12:21:04,401 INFO L226 Difference]: Without dead ends: 33117 [2022-01-10 12:21:04,418 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 12:21:04,419 INFO L933 BasicCegarLoop]: 2304 mSDtfsCounter, 14623 mSDsluCounter, 11750 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14623 SdHoareTripleChecker+Valid, 14054 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:04,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14623 Valid, 14054 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 12:21:04,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33117 states. [2022-01-10 12:21:05,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33117 to 12925. [2022-01-10 12:21:05,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12925 states, 12921 states have (on average 1.6285891184892811) internal successors, (21043), 12924 states have internal predecessors, (21043), 0 states have call successors, (0), 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 12:21:05,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12925 states to 12925 states and 21043 transitions. [2022-01-10 12:21:05,917 INFO L78 Accepts]: Start accepts. Automaton has 12925 states and 21043 transitions. Word has length 109 [2022-01-10 12:21:05,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:05,917 INFO L470 AbstractCegarLoop]: Abstraction has 12925 states and 21043 transitions. [2022-01-10 12:21:05,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 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 12:21:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand 12925 states and 21043 transitions. [2022-01-10 12:21:05,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 12:21:05,934 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:05,934 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, 1, 1, 1, 1, 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 12:21:05,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:21:05,935 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:05,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:05,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1929105683, now seen corresponding path program 1 times [2022-01-10 12:21:05,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:05,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39601510] [2022-01-10 12:21:05,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:05,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:06,060 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 12:21:06,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:06,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39601510] [2022-01-10 12:21:06,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39601510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:06,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:06,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:21:06,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637726224] [2022-01-10 12:21:06,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:06,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:21:06,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:06,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:21:06,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:21:06,062 INFO L87 Difference]: Start difference. First operand 12925 states and 21043 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 12:21:07,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:07,808 INFO L93 Difference]: Finished difference Result 24459 states and 39250 transitions. [2022-01-10 12:21:07,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:21:07,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-01-10 12:21:07,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:07,839 INFO L225 Difference]: With dead ends: 24459 [2022-01-10 12:21:07,839 INFO L226 Difference]: Without dead ends: 14169 [2022-01-10 12:21:07,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:21:07,857 INFO L933 BasicCegarLoop]: 1508 mSDtfsCounter, 5081 mSDsluCounter, 3252 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5081 SdHoareTripleChecker+Valid, 4760 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:07,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5081 Valid, 4760 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:21:07,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14169 states. [2022-01-10 12:21:09,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14169 to 12765. [2022-01-10 12:21:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12765 states, 12761 states have (on average 1.6176631925397695) internal successors, (20643), 12764 states have internal predecessors, (20643), 0 states have call successors, (0), 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 12:21:09,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12765 states to 12765 states and 20643 transitions. [2022-01-10 12:21:09,263 INFO L78 Accepts]: Start accepts. Automaton has 12765 states and 20643 transitions. Word has length 109 [2022-01-10 12:21:09,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:09,263 INFO L470 AbstractCegarLoop]: Abstraction has 12765 states and 20643 transitions. [2022-01-10 12:21:09,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 12:21:09,264 INFO L276 IsEmpty]: Start isEmpty. Operand 12765 states and 20643 transitions. [2022-01-10 12:21:09,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 12:21:09,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:09,280 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, 1, 1, 1, 1, 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 12:21:09,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:21:09,280 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:09,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:09,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1912092455, now seen corresponding path program 1 times [2022-01-10 12:21:09,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:09,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448940380] [2022-01-10 12:21:09,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:09,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:09,449 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 12:21:09,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:09,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448940380] [2022-01-10 12:21:09,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448940380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:09,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:09,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:21:09,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119670979] [2022-01-10 12:21:09,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:09,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:09,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:09,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:09,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:09,451 INFO L87 Difference]: Start difference. First operand 12765 states and 20643 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 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 12:21:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:13,710 INFO L93 Difference]: Finished difference Result 33806 states and 53509 transitions. [2022-01-10 12:21:13,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:21:13,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-01-10 12:21:13,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:13,769 INFO L225 Difference]: With dead ends: 33806 [2022-01-10 12:21:13,769 INFO L226 Difference]: Without dead ends: 31246 [2022-01-10 12:21:13,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:21:13,785 INFO L933 BasicCegarLoop]: 2953 mSDtfsCounter, 6355 mSDsluCounter, 7318 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6355 SdHoareTripleChecker+Valid, 10271 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:13,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6355 Valid, 10271 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:21:13,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31246 states. [2022-01-10 12:21:15,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31246 to 15385. [2022-01-10 12:21:15,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15385 states, 15381 states have (on average 1.6106234965216826) internal successors, (24773), 15384 states have internal predecessors, (24773), 0 states have call successors, (0), 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 12:21:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15385 states to 15385 states and 24773 transitions. [2022-01-10 12:21:15,609 INFO L78 Accepts]: Start accepts. Automaton has 15385 states and 24773 transitions. Word has length 109 [2022-01-10 12:21:15,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:15,609 INFO L470 AbstractCegarLoop]: Abstraction has 15385 states and 24773 transitions. [2022-01-10 12:21:15,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 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 12:21:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 15385 states and 24773 transitions. [2022-01-10 12:21:15,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 12:21:15,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:15,628 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, 1, 1, 1, 1, 1, 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 12:21:15,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:21:15,628 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:15,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:15,629 INFO L85 PathProgramCache]: Analyzing trace with hash 403303403, now seen corresponding path program 1 times [2022-01-10 12:21:15,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:15,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892014496] [2022-01-10 12:21:15,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:15,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:15,732 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 12:21:15,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:15,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892014496] [2022-01-10 12:21:15,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892014496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:15,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:15,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:21:15,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141228298] [2022-01-10 12:21:15,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:15,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:15,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:15,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:15,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:15,734 INFO L87 Difference]: Start difference. First operand 15385 states and 24773 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 12:21:22,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:22,279 INFO L93 Difference]: Finished difference Result 62929 states and 99313 transitions. [2022-01-10 12:21:22,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:21:22,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-10 12:21:22,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:22,377 INFO L225 Difference]: With dead ends: 62929 [2022-01-10 12:21:22,377 INFO L226 Difference]: Without dead ends: 50399 [2022-01-10 12:21:22,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:21:22,400 INFO L933 BasicCegarLoop]: 3793 mSDtfsCounter, 2275 mSDsluCounter, 7319 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 11112 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:22,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2275 Valid, 11112 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 12:21:22,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50399 states. [2022-01-10 12:21:24,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50399 to 16157. [2022-01-10 12:21:24,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16157 states, 16153 states have (on average 1.6138797746548628) internal successors, (26069), 16156 states have internal predecessors, (26069), 0 states have call successors, (0), 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 12:21:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16157 states to 16157 states and 26069 transitions. [2022-01-10 12:21:24,471 INFO L78 Accepts]: Start accepts. Automaton has 16157 states and 26069 transitions. Word has length 110 [2022-01-10 12:21:24,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:24,472 INFO L470 AbstractCegarLoop]: Abstraction has 16157 states and 26069 transitions. [2022-01-10 12:21:24,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 12:21:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 16157 states and 26069 transitions. [2022-01-10 12:21:24,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 12:21:24,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:24,490 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, 1, 1, 1, 1, 1, 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 12:21:24,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:21:24,490 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:24,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:24,490 INFO L85 PathProgramCache]: Analyzing trace with hash -204773460, now seen corresponding path program 1 times [2022-01-10 12:21:24,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:24,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546746197] [2022-01-10 12:21:24,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:24,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:24,619 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 12:21:24,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:24,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546746197] [2022-01-10 12:21:24,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546746197] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:24,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:24,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:21:24,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267230504] [2022-01-10 12:21:24,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:24,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:24,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:24,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:24,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:24,622 INFO L87 Difference]: Start difference. First operand 16157 states and 26069 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 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 12:21:31,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:31,788 INFO L93 Difference]: Finished difference Result 56839 states and 89616 transitions. [2022-01-10 12:21:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:21:31,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-10 12:21:31,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:31,862 INFO L225 Difference]: With dead ends: 56839 [2022-01-10 12:21:31,863 INFO L226 Difference]: Without dead ends: 46499 [2022-01-10 12:21:31,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:21:31,884 INFO L933 BasicCegarLoop]: 2971 mSDtfsCounter, 5037 mSDsluCounter, 5404 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5037 SdHoareTripleChecker+Valid, 8375 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:31,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5037 Valid, 8375 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:21:31,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46499 states. [2022-01-10 12:21:34,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46499 to 18413. [2022-01-10 12:21:34,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18413 states, 18409 states have (on average 1.606442500950622) internal successors, (29573), 18412 states have internal predecessors, (29573), 0 states have call successors, (0), 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 12:21:34,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18413 states to 18413 states and 29573 transitions. [2022-01-10 12:21:34,541 INFO L78 Accepts]: Start accepts. Automaton has 18413 states and 29573 transitions. Word has length 110 [2022-01-10 12:21:34,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:34,542 INFO L470 AbstractCegarLoop]: Abstraction has 18413 states and 29573 transitions. [2022-01-10 12:21:34,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 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 12:21:34,542 INFO L276 IsEmpty]: Start isEmpty. Operand 18413 states and 29573 transitions. [2022-01-10 12:21:34,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 12:21:34,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:34,563 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, 1, 1, 1, 1, 1, 1, 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 12:21:34,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:21:34,563 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:34,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:34,564 INFO L85 PathProgramCache]: Analyzing trace with hash -439862855, now seen corresponding path program 1 times [2022-01-10 12:21:34,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:34,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135626128] [2022-01-10 12:21:34,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:34,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:34,666 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 12:21:34,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:34,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135626128] [2022-01-10 12:21:34,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135626128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:34,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:34,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:21:34,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147217382] [2022-01-10 12:21:34,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:34,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:34,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:34,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:34,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:34,668 INFO L87 Difference]: Start difference. First operand 18413 states and 29573 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 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 12:21:42,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:42,315 INFO L93 Difference]: Finished difference Result 60763 states and 95738 transitions. [2022-01-10 12:21:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:21:42,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-01-10 12:21:42,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:42,408 INFO L225 Difference]: With dead ends: 60763 [2022-01-10 12:21:42,408 INFO L226 Difference]: Without dead ends: 50225 [2022-01-10 12:21:42,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:21:42,427 INFO L933 BasicCegarLoop]: 3800 mSDtfsCounter, 2248 mSDsluCounter, 7332 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 11132 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:42,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2248 Valid, 11132 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 12:21:42,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50225 states.