./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:10:58,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:10:58,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:10:58,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:10:58,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:10:58,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:10:58,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:10:58,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:10:58,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:10:58,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:10:58,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:10:58,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:10:58,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:10:58,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:10:58,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:10:58,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:10:58,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:10:58,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:10:58,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:10:58,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:10:58,130 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:10:58,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:10:58,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:10:58,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:10:58,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:10:58,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:10:58,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:10:58,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:10:58,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:10:58,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:10:58,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:10:58,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:10:58,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:10:58,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:10:58,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:10:58,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:10:58,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:10:58,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:10:58,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:10:58,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:10:58,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:10:58,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:10:58,148 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:10:58,166 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:10:58,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:10:58,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:10:58,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:10:58,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:10:58,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:10:58,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:10:58,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:10:58,171 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:10:58,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:10:58,172 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:10:58,172 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:10:58,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:10:58,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:10:58,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:10:58,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:10:58,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:10:58,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:10:58,173 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:10:58,174 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:10:58,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:10:58,174 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:10:58,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:10:58,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:10:58,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:10:58,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:10:58,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:10:58,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:10:58,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:10:58,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:10:58,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:10:58,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:10:58,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:10:58,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e [2022-07-14 14:10:58,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:10:58,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:10:58,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:10:58,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:10:58,400 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:10:58,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2022-07-14 14:10:58,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863e8b1a7/fd61567c50d54587b470545ab33c5ed4/FLAGef4542bb5 [2022-07-14 14:10:58,871 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:10:58,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2022-07-14 14:10:58,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863e8b1a7/fd61567c50d54587b470545ab33c5ed4/FLAGef4542bb5 [2022-07-14 14:10:58,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863e8b1a7/fd61567c50d54587b470545ab33c5ed4 [2022-07-14 14:10:58,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:10:58,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:10:58,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:10:58,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:10:58,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:10:58,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:10:58" (1/1) ... [2022-07-14 14:10:58,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c983489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:58, skipping insertion in model container [2022-07-14 14:10:58,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:10:58" (1/1) ... [2022-07-14 14:10:58,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:10:58,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:10:59,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i[30176,30189] [2022-07-14 14:10:59,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:10:59,195 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:10:59,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i[30176,30189] [2022-07-14 14:10:59,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:10:59,267 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:10:59,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59 WrapperNode [2022-07-14 14:10:59,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:10:59,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:10:59,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:10:59,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:10:59,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (1/1) ... [2022-07-14 14:10:59,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (1/1) ... [2022-07-14 14:10:59,313 INFO L137 Inliner]: procedures = 170, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2022-07-14 14:10:59,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:10:59,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:10:59,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:10:59,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:10:59,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (1/1) ... [2022-07-14 14:10:59,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (1/1) ... [2022-07-14 14:10:59,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (1/1) ... [2022-07-14 14:10:59,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (1/1) ... [2022-07-14 14:10:59,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (1/1) ... [2022-07-14 14:10:59,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (1/1) ... [2022-07-14 14:10:59,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (1/1) ... [2022-07-14 14:10:59,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:10:59,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:10:59,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:10:59,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:10:59,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (1/1) ... [2022-07-14 14:10:59,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:10:59,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:10:59,360 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) [2022-07-14 14:10:59,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 14:10:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:10:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:10:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:10:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:10:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:10:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-14 14:10:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-14 14:10:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:10:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:10:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:10:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:10:59,395 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:10:59,511 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:10:59,512 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:10:59,695 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:10:59,700 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:10:59,701 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-07-14 14:10:59,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:10:59 BoogieIcfgContainer [2022-07-14 14:10:59,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:10:59,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:10:59,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:10:59,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:10:59,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:10:58" (1/3) ... [2022-07-14 14:10:59,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af3ba1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:10:59, skipping insertion in model container [2022-07-14 14:10:59,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:59" (2/3) ... [2022-07-14 14:10:59,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af3ba1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:10:59, skipping insertion in model container [2022-07-14 14:10:59,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:10:59" (3/3) ... [2022-07-14 14:10:59,714 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_51-mutexptr_racefree.i [2022-07-14 14:10:59,719 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:10:59,727 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:10:59,727 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-14 14:10:59,728 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:10:59,778 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-14 14:10:59,799 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:10:59,807 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 144 transitions, 296 flow [2022-07-14 14:10:59,809 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 144 transitions, 296 flow [2022-07-14 14:10:59,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 144 transitions, 296 flow [2022-07-14 14:10:59,876 INFO L129 PetriNetUnfolder]: 17/182 cut-off events. [2022-07-14 14:10:59,877 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-14 14:10:59,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 182 events. 17/182 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 428 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2022-07-14 14:10:59,883 INFO L116 LiptonReduction]: Number of co-enabled transitions 4128 [2022-07-14 14:11:03,297 INFO L131 LiptonReduction]: Checked pairs total: 6970 [2022-07-14 14:11:03,297 INFO L133 LiptonReduction]: Total number of compositions: 137 [2022-07-14 14:11:03,307 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 41 transitions, 90 flow [2022-07-14 14:11:03,335 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 220 states, 193 states have (on average 2.6528497409326426) internal successors, (512), 219 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:03,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:11:03,354 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@20edc7ae, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17ae2cff [2022-07-14 14:11:03,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-07-14 14:11:03,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 220 states, 193 states have (on average 2.6528497409326426) internal successors, (512), 219 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 14:11:03,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:03,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 14:11:03,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:11:03,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:03,368 INFO L85 PathProgramCache]: Analyzing trace with hash 16954835, now seen corresponding path program 1 times [2022-07-14 14:11:03,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:03,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637230930] [2022-07-14 14:11:03,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:03,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:03,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:03,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637230930] [2022-07-14 14:11:03,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637230930] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:03,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:03,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:11:03,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585115008] [2022-07-14 14:11:03,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:03,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:11:03,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:03,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:11:03,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:11:03,578 INFO L87 Difference]: Start difference. First operand has 220 states, 193 states have (on average 2.6528497409326426) internal successors, (512), 219 states have internal predecessors, (512), 0 states have call successors, (0), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:03,628 INFO L93 Difference]: Finished difference Result 204 states and 369 transitions. [2022-07-14 14:11:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:11:03,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-07-14 14:11:03,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:03,640 INFO L225 Difference]: With dead ends: 204 [2022-07-14 14:11:03,640 INFO L226 Difference]: Without dead ends: 194 [2022-07-14 14:11:03,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:11:03,645 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:03,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 4 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:11:03,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-07-14 14:11:03,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2022-07-14 14:11:03,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 174 states have (on average 2.0344827586206895) internal successors, (354), 193 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:03,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 354 transitions. [2022-07-14 14:11:03,691 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 354 transitions. Word has length 4 [2022-07-14 14:11:03,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:03,693 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 354 transitions. [2022-07-14 14:11:03,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:03,694 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 354 transitions. [2022-07-14 14:11:03,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 14:11:03,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:03,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 14:11:03,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:11:03,695 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:11:03,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:03,696 INFO L85 PathProgramCache]: Analyzing trace with hash 16954793, now seen corresponding path program 1 times [2022-07-14 14:11:03,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:03,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290319831] [2022-07-14 14:11:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:03,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:03,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:03,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290319831] [2022-07-14 14:11:03,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290319831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:03,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:03,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:11:03,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400464595] [2022-07-14 14:11:03,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:03,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:11:03,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:03,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:11:03,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:11:03,744 INFO L87 Difference]: Start difference. First operand 194 states and 354 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:03,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:03,782 INFO L93 Difference]: Finished difference Result 178 states and 323 transitions. [2022-07-14 14:11:03,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:11:03,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-07-14 14:11:03,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:03,783 INFO L225 Difference]: With dead ends: 178 [2022-07-14 14:11:03,783 INFO L226 Difference]: Without dead ends: 178 [2022-07-14 14:11:03,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:11:03,784 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:03,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 8 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:11:03,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-07-14 14:11:03,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-07-14 14:11:03,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 163 states have (on average 1.98159509202454) internal successors, (323), 177 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:03,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 323 transitions. [2022-07-14 14:11:03,793 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 323 transitions. Word has length 4 [2022-07-14 14:11:03,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:03,793 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 323 transitions. [2022-07-14 14:11:03,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:03,794 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 323 transitions. [2022-07-14 14:11:03,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:11:03,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:03,795 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-07-14 14:11:03,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:11:03,796 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:11:03,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:03,798 INFO L85 PathProgramCache]: Analyzing trace with hash -886256308, now seen corresponding path program 1 times [2022-07-14 14:11:03,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:03,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265534631] [2022-07-14 14:11:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:03,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:11:03,835 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:11:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:11:03,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:11:03,863 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 14:11:03,863 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-07-14 14:11:03,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-07-14 14:11:03,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-07-14 14:11:03,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-07-14 14:11:03,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-07-14 14:11:03,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-07-14 14:11:03,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-07-14 14:11:03,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-07-14 14:11:03,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-07-14 14:11:03,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-07-14 14:11:03,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-07-14 14:11:03,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-07-14 14:11:03,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-07-14 14:11:03,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:11:03,868 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-14 14:11:03,869 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-14 14:11:03,869 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-14 14:11:03,890 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-14 14:11:03,896 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:11:03,896 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 189 transitions, 396 flow [2022-07-14 14:11:03,896 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 189 transitions, 396 flow [2022-07-14 14:11:03,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 189 transitions, 396 flow [2022-07-14 14:11:03,955 INFO L129 PetriNetUnfolder]: 31/302 cut-off events. [2022-07-14 14:11:03,956 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-07-14 14:11:03,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 302 events. 31/302 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 934 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 184. Up to 8 conditions per place. [2022-07-14 14:11:03,969 INFO L116 LiptonReduction]: Number of co-enabled transitions 13588 [2022-07-14 14:11:06,951 INFO L131 LiptonReduction]: Checked pairs total: 28101 [2022-07-14 14:11:06,952 INFO L133 LiptonReduction]: Total number of compositions: 176 [2022-07-14 14:11:06,953 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 66 transitions, 150 flow [2022-07-14 14:11:07,056 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3981 states, 3814 states have (on average 3.7233875196643944) internal successors, (14201), 3980 states have internal predecessors, (14201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:11:07,063 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@20edc7ae, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17ae2cff [2022-07-14 14:11:07,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-07-14 14:11:07,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 3981 states, 3814 states have (on average 3.7233875196643944) internal successors, (14201), 3980 states have internal predecessors, (14201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 14:11:07,078 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:07,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 14:11:07,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:11:07,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:07,081 INFO L85 PathProgramCache]: Analyzing trace with hash 914758742, now seen corresponding path program 1 times [2022-07-14 14:11:07,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:07,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749582933] [2022-07-14 14:11:07,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:07,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:07,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:07,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749582933] [2022-07-14 14:11:07,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749582933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:07,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:07,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:11:07,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338920210] [2022-07-14 14:11:07,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:07,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:11:07,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:07,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:11:07,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:11:07,143 INFO L87 Difference]: Start difference. First operand has 3981 states, 3814 states have (on average 3.7233875196643944) internal successors, (14201), 3980 states have internal predecessors, (14201), 0 states have call successors, (0), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:07,244 INFO L93 Difference]: Finished difference Result 3945 states and 10756 transitions. [2022-07-14 14:11:07,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:11:07,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-07-14 14:11:07,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:07,260 INFO L225 Difference]: With dead ends: 3945 [2022-07-14 14:11:07,260 INFO L226 Difference]: Without dead ends: 3919 [2022-07-14 14:11:07,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:11:07,261 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 15 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:07,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:11:07,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2022-07-14 14:11:07,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3919. [2022-07-14 14:11:07,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 3766 states have (on average 2.8385554965480617) internal successors, (10690), 3918 states have internal predecessors, (10690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 10690 transitions. [2022-07-14 14:11:07,364 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 10690 transitions. Word has length 5 [2022-07-14 14:11:07,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:07,364 INFO L495 AbstractCegarLoop]: Abstraction has 3919 states and 10690 transitions. [2022-07-14 14:11:07,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 10690 transitions. [2022-07-14 14:11:07,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:11:07,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:07,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:11:07,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 14:11:07,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:11:07,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:07,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1374120525, now seen corresponding path program 1 times [2022-07-14 14:11:07,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:07,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435209813] [2022-07-14 14:11:07,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:07,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:07,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:07,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:07,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435209813] [2022-07-14 14:11:07,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435209813] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:07,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:07,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:11:07,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132216413] [2022-07-14 14:11:07,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:07,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:11:07,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:07,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:11:07,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:11:07,431 INFO L87 Difference]: Start difference. First operand 3919 states and 10690 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:07,546 INFO L93 Difference]: Finished difference Result 4834 states and 12279 transitions. [2022-07-14 14:11:07,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:11:07,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-07-14 14:11:07,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:07,566 INFO L225 Difference]: With dead ends: 4834 [2022-07-14 14:11:07,566 INFO L226 Difference]: Without dead ends: 4810 [2022-07-14 14:11:07,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:11:07,567 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 63 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:07,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 22 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:11:07,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2022-07-14 14:11:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4322. [2022-07-14 14:11:07,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4322 states, 4189 states have (on average 2.730484602530437) internal successors, (11438), 4321 states have internal predecessors, (11438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4322 states to 4322 states and 11438 transitions. [2022-07-14 14:11:07,702 INFO L78 Accepts]: Start accepts. Automaton has 4322 states and 11438 transitions. Word has length 7 [2022-07-14 14:11:07,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:07,702 INFO L495 AbstractCegarLoop]: Abstraction has 4322 states and 11438 transitions. [2022-07-14 14:11:07,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,702 INFO L276 IsEmpty]: Start isEmpty. Operand 4322 states and 11438 transitions. [2022-07-14 14:11:07,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:11:07,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:07,703 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:11:07,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 14:11:07,703 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:11:07,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash 367151430, now seen corresponding path program 1 times [2022-07-14 14:11:07,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:07,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791000793] [2022-07-14 14:11:07,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:07,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:11:07,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:07,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791000793] [2022-07-14 14:11:07,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791000793] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:07,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:07,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:11:07,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037420750] [2022-07-14 14:11:07,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:07,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:11:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:07,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:11:07,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:11:07,732 INFO L87 Difference]: Start difference. First operand 4322 states and 11438 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:07,828 INFO L93 Difference]: Finished difference Result 4090 states and 10774 transitions. [2022-07-14 14:11:07,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:11:07,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-07-14 14:11:07,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:07,846 INFO L225 Difference]: With dead ends: 4090 [2022-07-14 14:11:07,846 INFO L226 Difference]: Without dead ends: 4090 [2022-07-14 14:11:07,846 INFO L412 NwaCegarLoop]: 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 [2022-07-14 14:11:07,847 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:07,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 14 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:11:07,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4090 states. [2022-07-14 14:11:07,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4090 to 4090. [2022-07-14 14:11:07,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4090 states, 3978 states have (on average 2.7083961789844144) internal successors, (10774), 4089 states have internal predecessors, (10774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4090 states to 4090 states and 10774 transitions. [2022-07-14 14:11:07,937 INFO L78 Accepts]: Start accepts. Automaton has 4090 states and 10774 transitions. Word has length 9 [2022-07-14 14:11:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:07,939 INFO L495 AbstractCegarLoop]: Abstraction has 4090 states and 10774 transitions. [2022-07-14 14:11:07,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:07,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4090 states and 10774 transitions. [2022-07-14 14:11:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:11:07,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:07,941 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:11:07,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 14:11:07,941 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:11:07,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:07,942 INFO L85 PathProgramCache]: Analyzing trace with hash 367151449, now seen corresponding path program 1 times [2022-07-14 14:11:07,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:07,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589985784] [2022-07-14 14:11:07,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:07,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:07,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:07,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589985784] [2022-07-14 14:11:07,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589985784] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:11:07,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812901797] [2022-07-14 14:11:07,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:07,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:11:07,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:11:07,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:11:07,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 14:11:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:08,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:11:08,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:11:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:08,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:11:08,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812901797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:08,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:11:08,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-07-14 14:11:08,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164028041] [2022-07-14 14:11:08,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:08,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:11:08,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:08,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:11:08,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:11:08,090 INFO L87 Difference]: Start difference. First operand 4090 states and 10774 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:08,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:08,183 INFO L93 Difference]: Finished difference Result 3858 states and 10110 transitions. [2022-07-14 14:11:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:11:08,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-07-14 14:11:08,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:08,197 INFO L225 Difference]: With dead ends: 3858 [2022-07-14 14:11:08,198 INFO L226 Difference]: Without dead ends: 3858 [2022-07-14 14:11:08,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:11:08,198 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 89 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:08,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 14 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:11:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2022-07-14 14:11:08,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3858. [2022-07-14 14:11:08,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3767 states have (on average 2.683833289089461) internal successors, (10110), 3857 states have internal predecessors, (10110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:08,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 10110 transitions. [2022-07-14 14:11:08,269 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 10110 transitions. Word has length 9 [2022-07-14 14:11:08,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:08,269 INFO L495 AbstractCegarLoop]: Abstraction has 3858 states and 10110 transitions. [2022-07-14 14:11:08,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:08,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 10110 transitions. [2022-07-14 14:11:08,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:11:08,270 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:08,270 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-07-14 14:11:08,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 14:11:08,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:11:08,490 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:11:08,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:08,491 INFO L85 PathProgramCache]: Analyzing trace with hash 645259286, now seen corresponding path program 1 times [2022-07-14 14:11:08,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:08,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489126997] [2022-07-14 14:11:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:08,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:11:08,500 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:11:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:11:08,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:11:08,509 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 14:11:08,510 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-07-14 14:11:08,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2022-07-14 14:11:08,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2022-07-14 14:11:08,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2022-07-14 14:11:08,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2022-07-14 14:11:08,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2022-07-14 14:11:08,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2022-07-14 14:11:08,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2022-07-14 14:11:08,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2022-07-14 14:11:08,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2022-07-14 14:11:08,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2022-07-14 14:11:08,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2022-07-14 14:11:08,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2022-07-14 14:11:08,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2022-07-14 14:11:08,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2022-07-14 14:11:08,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2022-07-14 14:11:08,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2022-07-14 14:11:08,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 14:11:08,512 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-14 14:11:08,512 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-14 14:11:08,513 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-14 14:11:08,547 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-14 14:11:08,549 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:11:08,549 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 234 transitions, 498 flow [2022-07-14 14:11:08,549 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 234 transitions, 498 flow [2022-07-14 14:11:08,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 215 places, 234 transitions, 498 flow [2022-07-14 14:11:08,599 INFO L129 PetriNetUnfolder]: 50/463 cut-off events. [2022-07-14 14:11:08,600 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-07-14 14:11:08,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 463 events. 50/463 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1664 event pairs, 1 based on Foata normal form. 0/377 useless extension candidates. Maximal degree in co-relation 310. Up to 16 conditions per place. [2022-07-14 14:11:08,620 INFO L116 LiptonReduction]: Number of co-enabled transitions 26316 [2022-07-14 14:11:12,316 INFO L131 LiptonReduction]: Checked pairs total: 59145 [2022-07-14 14:11:12,317 INFO L133 LiptonReduction]: Total number of compositions: 212 [2022-07-14 14:11:12,317 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 90 transitions, 210 flow [2022-07-14 14:11:13,985 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65789 states, 64832 states have (on average 4.972822063178677) internal successors, (322398), 65788 states have internal predecessors, (322398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:13,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:11:13,986 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@20edc7ae, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17ae2cff [2022-07-14 14:11:13,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-07-14 14:11:14,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 65789 states, 64832 states have (on average 4.972822063178677) internal successors, (322398), 65788 states have internal predecessors, (322398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:14,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 14:11:14,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:14,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 14:11:14,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:14,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:14,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1384653818, now seen corresponding path program 1 times [2022-07-14 14:11:14,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:14,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102517687] [2022-07-14 14:11:14,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:14,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:14,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:14,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:14,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102517687] [2022-07-14 14:11:14,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102517687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:14,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:14,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:11:14,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951688330] [2022-07-14 14:11:14,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:14,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:11:14,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:14,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:11:14,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:11:14,235 INFO L87 Difference]: Start difference. First operand has 65789 states, 64832 states have (on average 4.972822063178677) internal successors, (322398), 65788 states have internal predecessors, (322398), 0 states have call successors, (0), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:15,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:15,051 INFO L93 Difference]: Finished difference Result 65753 states and 238574 transitions. [2022-07-14 14:11:15,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:11:15,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-07-14 14:11:15,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:15,684 INFO L225 Difference]: With dead ends: 65753 [2022-07-14 14:11:15,684 INFO L226 Difference]: Without dead ends: 65627 [2022-07-14 14:11:15,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:11:15,686 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:15,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 22 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:11:15,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65627 states. [2022-07-14 14:11:17,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65627 to 65627. [2022-07-14 14:11:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65627 states, 64688 states have (on average 3.681486519910957) internal successors, (238148), 65626 states have internal predecessors, (238148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:18,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65627 states to 65627 states and 238148 transitions. [2022-07-14 14:11:18,219 INFO L78 Accepts]: Start accepts. Automaton has 65627 states and 238148 transitions. Word has length 5 [2022-07-14 14:11:18,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:18,220 INFO L495 AbstractCegarLoop]: Abstraction has 65627 states and 238148 transitions. [2022-07-14 14:11:18,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 65627 states and 238148 transitions. [2022-07-14 14:11:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:11:18,223 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:18,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:11:18,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 14:11:18,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:18,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:18,223 INFO L85 PathProgramCache]: Analyzing trace with hash -774439323, now seen corresponding path program 1 times [2022-07-14 14:11:18,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:18,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698518154] [2022-07-14 14:11:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:18,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:18,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:18,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:18,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698518154] [2022-07-14 14:11:18,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698518154] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:18,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:18,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:11:18,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688278888] [2022-07-14 14:11:18,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:18,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:11:18,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:18,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:11:18,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:11:18,262 INFO L87 Difference]: Start difference. First operand 65627 states and 238148 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:19,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:19,001 INFO L93 Difference]: Finished difference Result 62409 states and 225605 transitions. [2022-07-14 14:11:19,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:11:19,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-07-14 14:11:19,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:19,289 INFO L225 Difference]: With dead ends: 62409 [2022-07-14 14:11:19,290 INFO L226 Difference]: Without dead ends: 62409 [2022-07-14 14:11:19,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:11:19,291 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 57 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:19,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 24 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:11:19,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62409 states. [2022-07-14 14:11:20,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62409 to 62403. [2022-07-14 14:11:20,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62403 states, 61512 states have (on average 3.6674470022109507) internal successors, (225592), 62402 states have internal predecessors, (225592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:21,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62403 states to 62403 states and 225592 transitions. [2022-07-14 14:11:21,247 INFO L78 Accepts]: Start accepts. Automaton has 62403 states and 225592 transitions. Word has length 7 [2022-07-14 14:11:21,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:21,247 INFO L495 AbstractCegarLoop]: Abstraction has 62403 states and 225592 transitions. [2022-07-14 14:11:21,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 62403 states and 225592 transitions. [2022-07-14 14:11:21,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:11:21,248 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:21,248 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:11:21,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 14:11:21,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:21,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:21,249 INFO L85 PathProgramCache]: Analyzing trace with hash -817911102, now seen corresponding path program 1 times [2022-07-14 14:11:21,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:21,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429238196] [2022-07-14 14:11:21,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:21,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:21,268 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:11:21,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:21,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429238196] [2022-07-14 14:11:21,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429238196] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:21,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:21,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:11:21,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514678569] [2022-07-14 14:11:21,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:21,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:11:21,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:21,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:11:21,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:11:21,270 INFO L87 Difference]: Start difference. First operand 62403 states and 225592 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:22,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:22,068 INFO L93 Difference]: Finished difference Result 58293 states and 210184 transitions. [2022-07-14 14:11:22,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:11:22,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-07-14 14:11:22,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:22,319 INFO L225 Difference]: With dead ends: 58293 [2022-07-14 14:11:22,320 INFO L226 Difference]: Without dead ends: 58293 [2022-07-14 14:11:22,320 INFO L412 NwaCegarLoop]: 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 [2022-07-14 14:11:22,320 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 49 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:22,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 20 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:11:22,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58293 states. [2022-07-14 14:11:23,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58293 to 58293. [2022-07-14 14:11:23,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58293 states, 57540 states have (on average 3.6528328119568996) internal successors, (210184), 58292 states have internal predecessors, (210184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:24,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58293 states to 58293 states and 210184 transitions. [2022-07-14 14:11:24,173 INFO L78 Accepts]: Start accepts. Automaton has 58293 states and 210184 transitions. Word has length 9 [2022-07-14 14:11:24,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:24,174 INFO L495 AbstractCegarLoop]: Abstraction has 58293 states and 210184 transitions. [2022-07-14 14:11:24,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:24,174 INFO L276 IsEmpty]: Start isEmpty. Operand 58293 states and 210184 transitions. [2022-07-14 14:11:24,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:11:24,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:24,174 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:11:24,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 14:11:24,175 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:24,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -817911101, now seen corresponding path program 1 times [2022-07-14 14:11:24,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:24,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181881301] [2022-07-14 14:11:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:24,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:24,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:24,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:24,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181881301] [2022-07-14 14:11:24,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181881301] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:11:24,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016145159] [2022-07-14 14:11:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:24,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:11:24,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:11:24,212 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:11:24,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 14:11:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:24,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:11:24,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:11:24,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:24,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:11:24,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016145159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:24,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:11:24,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-07-14 14:11:24,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143659580] [2022-07-14 14:11:24,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:24,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:11:24,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:24,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:11:24,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:11:24,286 INFO L87 Difference]: Start difference. First operand 58293 states and 210184 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:24,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:24,981 INFO L93 Difference]: Finished difference Result 54183 states and 194776 transitions. [2022-07-14 14:11:24,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:11:24,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-07-14 14:11:24,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:25,251 INFO L225 Difference]: With dead ends: 54183 [2022-07-14 14:11:25,251 INFO L226 Difference]: Without dead ends: 54183 [2022-07-14 14:11:25,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:11:25,252 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 75 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:25,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 19 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:11:25,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54183 states. [2022-07-14 14:11:26,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54183 to 54183. [2022-07-14 14:11:26,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54183 states, 53568 states have (on average 3.6360513739546) internal successors, (194776), 54182 states have internal predecessors, (194776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54183 states to 54183 states and 194776 transitions. [2022-07-14 14:11:26,931 INFO L78 Accepts]: Start accepts. Automaton has 54183 states and 194776 transitions. Word has length 9 [2022-07-14 14:11:26,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:26,931 INFO L495 AbstractCegarLoop]: Abstraction has 54183 states and 194776 transitions. [2022-07-14 14:11:26,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:26,931 INFO L276 IsEmpty]: Start isEmpty. Operand 54183 states and 194776 transitions. [2022-07-14 14:11:26,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:11:26,932 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:26,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:11:26,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 14:11:27,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-14 14:11:27,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:27,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:27,138 INFO L85 PathProgramCache]: Analyzing trace with hash -100352940, now seen corresponding path program 1 times [2022-07-14 14:11:27,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:27,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595239333] [2022-07-14 14:11:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:27,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:27,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:27,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:27,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595239333] [2022-07-14 14:11:27,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595239333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:27,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:27,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:11:27,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190148233] [2022-07-14 14:11:27,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:27,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:11:27,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:27,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:11:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:11:27,175 INFO L87 Difference]: Start difference. First operand 54183 states and 194776 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:28,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:28,316 INFO L93 Difference]: Finished difference Result 84855 states and 292841 transitions. [2022-07-14 14:11:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 14:11:28,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-07-14 14:11:28,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:28,658 INFO L225 Difference]: With dead ends: 84855 [2022-07-14 14:11:28,658 INFO L226 Difference]: Without dead ends: 84855 [2022-07-14 14:11:28,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:11:28,659 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 191 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:28,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 110 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 14:11:28,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84855 states. [2022-07-14 14:11:30,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84855 to 75829. [2022-07-14 14:11:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75829 states, 75214 states have (on average 3.584119977663733) internal successors, (269576), 75828 states have internal predecessors, (269576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:31,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75829 states to 75829 states and 269576 transitions. [2022-07-14 14:11:31,120 INFO L78 Accepts]: Start accepts. Automaton has 75829 states and 269576 transitions. Word has length 11 [2022-07-14 14:11:31,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:31,120 INFO L495 AbstractCegarLoop]: Abstraction has 75829 states and 269576 transitions. [2022-07-14 14:11:31,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:31,120 INFO L276 IsEmpty]: Start isEmpty. Operand 75829 states and 269576 transitions. [2022-07-14 14:11:31,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:11:31,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:31,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:11:31,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 14:11:31,121 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:31,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:31,121 INFO L85 PathProgramCache]: Analyzing trace with hash -100352954, now seen corresponding path program 1 times [2022-07-14 14:11:31,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:31,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402546245] [2022-07-14 14:11:31,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:31,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:31,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:31,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402546245] [2022-07-14 14:11:31,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402546245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:31,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:31,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:11:31,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079880715] [2022-07-14 14:11:31,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:31,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:11:31,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:31,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:11:31,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:11:31,145 INFO L87 Difference]: Start difference. First operand 75829 states and 269576 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:32,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:32,525 INFO L93 Difference]: Finished difference Result 112395 states and 386496 transitions. [2022-07-14 14:11:32,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:11:32,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-07-14 14:11:32,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:33,006 INFO L225 Difference]: With dead ends: 112395 [2022-07-14 14:11:33,007 INFO L226 Difference]: Without dead ends: 112326 [2022-07-14 14:11:33,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:11:33,007 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 160 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:33,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 55 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:11:33,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112326 states. [2022-07-14 14:11:35,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112326 to 95440. [2022-07-14 14:11:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95440 states, 94837 states have (on average 3.556038255111402) internal successors, (337244), 95439 states have internal predecessors, (337244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:35,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95440 states to 95440 states and 337244 transitions. [2022-07-14 14:11:35,961 INFO L78 Accepts]: Start accepts. Automaton has 95440 states and 337244 transitions. Word has length 11 [2022-07-14 14:11:35,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:35,961 INFO L495 AbstractCegarLoop]: Abstraction has 95440 states and 337244 transitions. [2022-07-14 14:11:35,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:35,961 INFO L276 IsEmpty]: Start isEmpty. Operand 95440 states and 337244 transitions. [2022-07-14 14:11:35,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-14 14:11:35,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:35,962 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:11:35,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 14:11:35,963 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:35,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:35,963 INFO L85 PathProgramCache]: Analyzing trace with hash -941743143, now seen corresponding path program 1 times [2022-07-14 14:11:35,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:35,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132023089] [2022-07-14 14:11:35,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:35,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:36,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:36,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:36,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132023089] [2022-07-14 14:11:36,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132023089] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:11:36,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579103049] [2022-07-14 14:11:36,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:36,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:11:36,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:11:36,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:11:36,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 14:11:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:36,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-14 14:11:36,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:11:36,135 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-14 14:11:36,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-14 14:11:36,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-14 14:11:36,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-07-14 14:11:36,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-14 14:11:36,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:36,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:11:36,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579103049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:36,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:11:36,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2022-07-14 14:11:36,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934772353] [2022-07-14 14:11:36,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:36,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:11:36,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:36,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:11:36,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:11:36,259 INFO L87 Difference]: Start difference. First operand 95440 states and 337244 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:37,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:37,411 INFO L93 Difference]: Finished difference Result 93365 states and 329815 transitions. [2022-07-14 14:11:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:11:37,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-07-14 14:11:37,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:37,820 INFO L225 Difference]: With dead ends: 93365 [2022-07-14 14:11:37,820 INFO L226 Difference]: Without dead ends: 93365 [2022-07-14 14:11:37,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:11:37,821 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 103 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:37,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 68 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:11:38,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93365 states. [2022-07-14 14:11:40,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93365 to 91964. [2022-07-14 14:11:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91964 states, 91384 states have (on average 3.5562461700078787) internal successors, (324984), 91963 states have internal predecessors, (324984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91964 states to 91964 states and 324984 transitions. [2022-07-14 14:11:40,651 INFO L78 Accepts]: Start accepts. Automaton has 91964 states and 324984 transitions. Word has length 14 [2022-07-14 14:11:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:40,652 INFO L495 AbstractCegarLoop]: Abstraction has 91964 states and 324984 transitions. [2022-07-14 14:11:40,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:40,652 INFO L276 IsEmpty]: Start isEmpty. Operand 91964 states and 324984 transitions. [2022-07-14 14:11:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-14 14:11:40,653 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:40,653 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:11:40,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 14:11:40,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:11:40,853 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:40,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:40,854 INFO L85 PathProgramCache]: Analyzing trace with hash -941743157, now seen corresponding path program 1 times [2022-07-14 14:11:40,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:40,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348503742] [2022-07-14 14:11:40,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:40,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:41,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:41,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348503742] [2022-07-14 14:11:41,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348503742] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:11:41,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740449942] [2022-07-14 14:11:41,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:41,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:11:41,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:11:41,008 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:11:41,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 14:11:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:41,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 14:11:41,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:11:41,086 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-14 14:11:41,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-14 14:11:41,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-14 14:11:41,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-14 14:11:41,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:11:41,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:11:41,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740449942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:41,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:11:41,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2022-07-14 14:11:41,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668044708] [2022-07-14 14:11:41,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:41,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:11:41,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:41,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:11:41,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 14:11:41,175 INFO L87 Difference]: Start difference. First operand 91964 states and 324984 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:42,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:42,502 INFO L93 Difference]: Finished difference Result 103744 states and 356093 transitions. [2022-07-14 14:11:42,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:11:42,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-07-14 14:11:42,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:42,919 INFO L225 Difference]: With dead ends: 103744 [2022-07-14 14:11:42,919 INFO L226 Difference]: Without dead ends: 103744 [2022-07-14 14:11:42,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-14 14:11:42,920 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 282 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:42,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 59 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:11:43,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103744 states. [2022-07-14 14:11:45,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103744 to 81494. [2022-07-14 14:11:45,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81494 states, 80963 states have (on average 3.5420377209342537) internal successors, (286774), 81493 states have internal predecessors, (286774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:45,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81494 states to 81494 states and 286774 transitions. [2022-07-14 14:11:45,884 INFO L78 Accepts]: Start accepts. Automaton has 81494 states and 286774 transitions. Word has length 14 [2022-07-14 14:11:45,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:45,884 INFO L495 AbstractCegarLoop]: Abstraction has 81494 states and 286774 transitions. [2022-07-14 14:11:45,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:11:45,884 INFO L276 IsEmpty]: Start isEmpty. Operand 81494 states and 286774 transitions. [2022-07-14 14:11:45,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 14:11:45,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:45,886 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-07-14 14:11:45,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 14:11:46,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-14 14:11:46,103 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:46,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:46,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1402408442, now seen corresponding path program 1 times [2022-07-14 14:11:46,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:46,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747033739] [2022-07-14 14:11:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:46,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:11:46,112 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:11:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:11:46,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:11:46,121 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 14:11:46,121 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2022-07-14 14:11:46,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-07-14 14:11:46,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-07-14 14:11:46,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-07-14 14:11:46,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-07-14 14:11:46,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-07-14 14:11:46,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-07-14 14:11:46,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-07-14 14:11:46,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-07-14 14:11:46,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-07-14 14:11:46,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-07-14 14:11:46,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-07-14 14:11:46,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-07-14 14:11:46,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-07-14 14:11:46,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-07-14 14:11:46,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-07-14 14:11:46,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-07-14 14:11:46,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-07-14 14:11:46,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-07-14 14:11:46,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-07-14 14:11:46,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-07-14 14:11:46,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 14:11:46,124 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:11:46,124 WARN L231 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-14 14:11:46,124 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-07-14 14:11:46,139 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-14 14:11:46,141 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:11:46,141 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 255 places, 279 transitions, 602 flow [2022-07-14 14:11:46,141 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 255 places, 279 transitions, 602 flow [2022-07-14 14:11:46,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 255 places, 279 transitions, 602 flow [2022-07-14 14:11:46,203 INFO L129 PetriNetUnfolder]: 81/708 cut-off events. [2022-07-14 14:11:46,204 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-07-14 14:11:46,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 763 conditions, 708 events. 81/708 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2901 event pairs, 6 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 483. Up to 32 conditions per place. [2022-07-14 14:11:46,234 INFO L116 LiptonReduction]: Number of co-enabled transitions 43000 [2022-07-14 14:11:50,427 INFO L131 LiptonReduction]: Checked pairs total: 99344 [2022-07-14 14:11:50,428 INFO L133 LiptonReduction]: Total number of compositions: 257 [2022-07-14 14:11:50,428 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 112 transitions, 268 flow