./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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_06-cond_racing1.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 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:27:45,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:27:45,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:27:45,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:27:45,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:27:45,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:27:45,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:27:45,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:27:45,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:27:45,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:27:45,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:27:45,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:27:45,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:27:45,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:27:45,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:27:45,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:27:45,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:27:45,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:27:45,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:27:45,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:27:45,316 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:27:45,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:27:45,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:27:45,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:27:45,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:27:45,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:27:45,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:27:45,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:27:45,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:27:45,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:27:45,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:27:45,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:27:45,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:27:45,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:27:45,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:27:45,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:27:45,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:27:45,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:27:45,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:27:45,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:27:45,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:27:45,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:27:45,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:27:45,385 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:27:45,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:27:45,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:27:45,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:27:45,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:27:45,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:27:45,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:27:45,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:27:45,388 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:27:45,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:27:45,389 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:27:45,389 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:27:45,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:27:45,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:27:45,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:27:45,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:27:45,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:27:45,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:27:45,391 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:27:45,391 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:27:45,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:27:45,391 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:27:45,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:27:45,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:27:45,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:27:45,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:27:45,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:27:45,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:27:45,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:27:45,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:27:45,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:27:45,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:27:45,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:27:45,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc [2022-07-13 02:27:45,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:27:45,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:27:45,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:27:45,665 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:27:45,666 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:27:45,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i [2022-07-13 02:27:45,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edffb6523/89f7461407f444dc8b15206c52dd58f7/FLAGd82a91db4 [2022-07-13 02:27:46,244 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:27:46,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i [2022-07-13 02:27:46,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edffb6523/89f7461407f444dc8b15206c52dd58f7/FLAGd82a91db4 [2022-07-13 02:27:46,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edffb6523/89f7461407f444dc8b15206c52dd58f7 [2022-07-13 02:27:46,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:27:46,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:27:46,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:27:46,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:27:46,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:27:46,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:27:46" (1/1) ... [2022-07-13 02:27:46,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c495351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:46, skipping insertion in model container [2022-07-13 02:27:46,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:27:46" (1/1) ... [2022-07-13 02:27:46,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:27:46,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:27:47,179 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_06-cond_racing1.i[41322,41335] [2022-07-13 02:27:47,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:27:47,208 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:27:47,234 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_06-cond_racing1.i[41322,41335] [2022-07-13 02:27:47,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:27:47,283 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:27:47,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47 WrapperNode [2022-07-13 02:27:47,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:27:47,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:27:47,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:27:47,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:27:47,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (1/1) ... [2022-07-13 02:27:47,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (1/1) ... [2022-07-13 02:27:47,344 INFO L137 Inliner]: procedures = 270, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2022-07-13 02:27:47,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:27:47,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:27:47,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:27:47,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:27:47,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (1/1) ... [2022-07-13 02:27:47,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (1/1) ... [2022-07-13 02:27:47,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (1/1) ... [2022-07-13 02:27:47,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (1/1) ... [2022-07-13 02:27:47,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (1/1) ... [2022-07-13 02:27:47,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (1/1) ... [2022-07-13 02:27:47,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (1/1) ... [2022-07-13 02:27:47,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:27:47,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:27:47,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:27:47,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:27:47,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (1/1) ... [2022-07-13 02:27:47,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:27:47,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:27:47,396 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) [2022-07-13 02:27:47,410 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 [2022-07-13 02:27:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:27:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:27:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:27:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:27:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:27:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:27:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:27:47,443 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:27:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:27:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:27:47,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:27:47,444 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 02:27:47,590 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:27:47,604 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:27:47,841 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:27:47,848 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:27:47,848 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-07-13 02:27:47,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:27:47 BoogieIcfgContainer [2022-07-13 02:27:47,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:27:47,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:27:47,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:27:47,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:27:47,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:27:46" (1/3) ... [2022-07-13 02:27:47,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314de4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:27:47, skipping insertion in model container [2022-07-13 02:27:47,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:27:47" (2/3) ... [2022-07-13 02:27:47,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314de4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:27:47, skipping insertion in model container [2022-07-13 02:27:47,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:27:47" (3/3) ... [2022-07-13 02:27:47,857 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_06-cond_racing1.i [2022-07-13 02:27:47,861 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:27:47,868 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:27:47,869 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-13 02:27:47,869 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:27:47,917 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-13 02:27:47,944 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:27:47,954 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 142 transitions, 292 flow [2022-07-13 02:27:47,956 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 142 transitions, 292 flow [2022-07-13 02:27:47,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 142 transitions, 292 flow [2022-07-13 02:27:48,019 INFO L129 PetriNetUnfolder]: 23/186 cut-off events. [2022-07-13 02:27:48,020 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-13 02:27:48,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 186 events. 23/186 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 422 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 89. Up to 6 conditions per place. [2022-07-13 02:27:48,028 INFO L116 LiptonReduction]: Number of co-enabled transitions 3888 [2022-07-13 02:27:52,352 INFO L131 LiptonReduction]: Checked pairs total: 5874 [2022-07-13 02:27:52,352 INFO L133 LiptonReduction]: Total number of compositions: 145 [2022-07-13 02:27:52,360 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 40 transitions, 88 flow [2022-07-13 02:27:52,392 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 194 states, 167 states have (on average 2.8323353293413174) internal successors, (473), 193 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:52,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:27:52,413 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@4b8aa2c5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@25c3bf91 [2022-07-13 02:27:52,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-07-13 02:27:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 167 states have (on average 2.8323353293413174) internal successors, (473), 193 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:52,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 02:27:52,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:52,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 02:27:52,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-13 02:27:52,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:52,424 INFO L85 PathProgramCache]: Analyzing trace with hash 17235435, now seen corresponding path program 1 times [2022-07-13 02:27:52,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:52,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499321443] [2022-07-13 02:27:52,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:52,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:52,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:52,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:52,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499321443] [2022-07-13 02:27:52,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499321443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:52,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:27:52,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:27:52,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105118175] [2022-07-13 02:27:52,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:52,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:27:52,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:52,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:27:52,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:27:52,636 INFO L87 Difference]: Start difference. First operand has 194 states, 167 states have (on average 2.8323353293413174) internal successors, (473), 193 states have internal predecessors, (473), 0 states have call successors, (0), 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) [2022-07-13 02:27:52,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:52,724 INFO L93 Difference]: Finished difference Result 162 states and 305 transitions. [2022-07-13 02:27:52,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:27:52,727 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 [2022-07-13 02:27:52,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:52,734 INFO L225 Difference]: With dead ends: 162 [2022-07-13 02:27:52,734 INFO L226 Difference]: Without dead ends: 156 [2022-07-13 02:27:52,735 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 [2022-07-13 02:27:52,737 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:52,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:27:52,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-07-13 02:27:52,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-07-13 02:27:52,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 141 states have (on average 2.0921985815602837) internal successors, (295), 155 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:52,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 295 transitions. [2022-07-13 02:27:52,773 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 295 transitions. Word has length 4 [2022-07-13 02:27:52,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:52,773 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 295 transitions. [2022-07-13 02:27:52,773 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) [2022-07-13 02:27:52,774 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 295 transitions. [2022-07-13 02:27:52,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:27:52,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:52,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:27:52,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:27:52,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-13 02:27:52,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:52,776 INFO L85 PathProgramCache]: Analyzing trace with hash -616592294, now seen corresponding path program 1 times [2022-07-13 02:27:52,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:52,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430949092] [2022-07-13 02:27:52,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:52,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:52,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:52,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:52,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430949092] [2022-07-13 02:27:52,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430949092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:52,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:27:52,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:27:52,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626639078] [2022-07-13 02:27:52,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:52,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:27:52,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:27:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:27:52,842 INFO L87 Difference]: Start difference. First operand 156 states and 295 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:52,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:52,899 INFO L93 Difference]: Finished difference Result 173 states and 303 transitions. [2022-07-13 02:27:52,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:27:52,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-07-13 02:27:52,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:52,902 INFO L225 Difference]: With dead ends: 173 [2022-07-13 02:27:52,902 INFO L226 Difference]: Without dead ends: 171 [2022-07-13 02:27:52,903 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 [2022-07-13 02:27:52,904 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 18 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:52,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:27:52,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-07-13 02:27:52,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 142. [2022-07-13 02:27:52,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 133 states have (on average 1.9924812030075187) internal successors, (265), 141 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 265 transitions. [2022-07-13 02:27:52,915 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 265 transitions. Word has length 6 [2022-07-13 02:27:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:52,916 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 265 transitions. [2022-07-13 02:27:52,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:52,916 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 265 transitions. [2022-07-13 02:27:52,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:27:52,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:52,917 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-07-13 02:27:52,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:27:52,917 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)] === [2022-07-13 02:27:52,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:52,918 INFO L85 PathProgramCache]: Analyzing trace with hash -616565669, now seen corresponding path program 1 times [2022-07-13 02:27:52,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:52,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565707167] [2022-07-13 02:27:52,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:52,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:27:52,942 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:27:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:27:52,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:27:52,973 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:27:52,974 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-07-13 02:27:52,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-07-13 02:27:52,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-07-13 02:27:52,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-07-13 02:27:52,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-07-13 02:27:52,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-07-13 02:27:52,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-07-13 02:27:52,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-07-13 02:27:52,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-07-13 02:27:52,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-07-13 02:27:52,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-07-13 02:27:52,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-07-13 02:27:52,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-07-13 02:27:52,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:27:52,980 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-13 02:27:52,982 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 02:27:52,982 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-13 02:27:53,000 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-13 02:27:53,007 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:27:53,008 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 180 transitions, 378 flow [2022-07-13 02:27:53,009 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 180 transitions, 378 flow [2022-07-13 02:27:53,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 163 places, 180 transitions, 378 flow [2022-07-13 02:27:53,083 INFO L129 PetriNetUnfolder]: 40/305 cut-off events. [2022-07-13 02:27:53,084 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-07-13 02:27:53,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 305 events. 40/305 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 896 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 188. Up to 9 conditions per place. [2022-07-13 02:27:53,101 INFO L116 LiptonReduction]: Number of co-enabled transitions 11736 [2022-07-13 02:27:57,339 INFO L131 LiptonReduction]: Checked pairs total: 27270 [2022-07-13 02:27:57,340 INFO L133 LiptonReduction]: Total number of compositions: 165 [2022-07-13 02:27:57,341 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 67 transitions, 152 flow [2022-07-13 02:27:57,494 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3981 states, 3814 states have (on average 3.7949659150498163) internal successors, (14474), 3980 states have internal predecessors, (14474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:57,497 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:27:57,502 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@4b8aa2c5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@25c3bf91 [2022-07-13 02:27:57,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-07-13 02:27:57,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 3981 states, 3814 states have (on average 3.7949659150498163) internal successors, (14474), 3980 states have internal predecessors, (14474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:57,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:27:57,517 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:57,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:27:57,517 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)] === [2022-07-13 02:27:57,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:57,520 INFO L85 PathProgramCache]: Analyzing trace with hash 899381963, now seen corresponding path program 1 times [2022-07-13 02:27:57,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:57,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765940621] [2022-07-13 02:27:57,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:57,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:57,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:57,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765940621] [2022-07-13 02:27:57,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765940621] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:57,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:27:57,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:27:57,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37961452] [2022-07-13 02:27:57,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:57,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:27:57,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:57,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:27:57,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:27:57,613 INFO L87 Difference]: Start difference. First operand has 3981 states, 3814 states have (on average 3.7949659150498163) internal successors, (14474), 3980 states have internal predecessors, (14474), 0 states have call successors, (0), 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) [2022-07-13 02:27:57,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:57,749 INFO L93 Difference]: Finished difference Result 3945 states and 11028 transitions. [2022-07-13 02:27:57,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:27:57,750 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 [2022-07-13 02:27:57,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:57,774 INFO L225 Difference]: With dead ends: 3945 [2022-07-13 02:27:57,774 INFO L226 Difference]: Without dead ends: 3919 [2022-07-13 02:27:57,775 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 [2022-07-13 02:27:57,775 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 15 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:57,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 10 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:27:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2022-07-13 02:27:57,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3919. [2022-07-13 02:27:57,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 3766 states have (on average 2.9107806691449816) internal successors, (10962), 3918 states have internal predecessors, (10962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 10962 transitions. [2022-07-13 02:27:57,895 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 10962 transitions. Word has length 5 [2022-07-13 02:27:57,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:57,896 INFO L495 AbstractCegarLoop]: Abstraction has 3919 states and 10962 transitions. [2022-07-13 02:27:57,896 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) [2022-07-13 02:27:57,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 10962 transitions. [2022-07-13 02:27:57,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:27:57,897 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:57,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:27:57,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:27:57,897 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)] === [2022-07-13 02:27:57,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:57,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1025064725, now seen corresponding path program 1 times [2022-07-13 02:27:57,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:57,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976156331] [2022-07-13 02:27:57,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:57,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:57,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:57,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:57,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976156331] [2022-07-13 02:27:57,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976156331] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:57,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:27:57,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:27:57,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665246571] [2022-07-13 02:27:57,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:57,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:27:57,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:57,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:27:57,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:27:57,949 INFO L87 Difference]: Start difference. First operand 3919 states and 10962 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-07-13 02:27:58,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:58,115 INFO L93 Difference]: Finished difference Result 4824 states and 12505 transitions. [2022-07-13 02:27:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:27:58,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2022-07-13 02:27:58,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:58,139 INFO L225 Difference]: With dead ends: 4824 [2022-07-13 02:27:58,140 INFO L226 Difference]: Without dead ends: 4800 [2022-07-13 02:27:58,140 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 [2022-07-13 02:27:58,141 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 35 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:58,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 11 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:27:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4800 states. [2022-07-13 02:27:58,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4800 to 4322. [2022-07-13 02:27:58,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4322 states, 4189 states have (on average 2.789209835282884) internal successors, (11684), 4321 states have internal predecessors, (11684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:58,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4322 states to 4322 states and 11684 transitions. [2022-07-13 02:27:58,255 INFO L78 Accepts]: Start accepts. Automaton has 4322 states and 11684 transitions. Word has length 7 [2022-07-13 02:27:58,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:58,255 INFO L495 AbstractCegarLoop]: Abstraction has 4322 states and 11684 transitions. [2022-07-13 02:27:58,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-07-13 02:27:58,256 INFO L276 IsEmpty]: Start isEmpty. Operand 4322 states and 11684 transitions. [2022-07-13 02:27:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:27:58,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:58,257 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:27:58,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:27:58,257 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)] === [2022-07-13 02:27:58,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:58,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1244346170, now seen corresponding path program 1 times [2022-07-13 02:27:58,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:58,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862423176] [2022-07-13 02:27:58,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:58,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:58,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 02:27:58,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:58,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862423176] [2022-07-13 02:27:58,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862423176] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:58,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:27:58,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:27:58,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928328923] [2022-07-13 02:27:58,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:58,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:27:58,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:58,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:27:58,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:27:58,283 INFO L87 Difference]: Start difference. First operand 4322 states and 11684 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) [2022-07-13 02:27:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:58,379 INFO L93 Difference]: Finished difference Result 4090 states and 11020 transitions. [2022-07-13 02:27:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:27:58,379 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 [2022-07-13 02:27:58,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:58,399 INFO L225 Difference]: With dead ends: 4090 [2022-07-13 02:27:58,399 INFO L226 Difference]: Without dead ends: 4090 [2022-07-13 02:27:58,399 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 [2022-07-13 02:27:58,400 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 33 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:58,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 8 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:27:58,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4090 states. [2022-07-13 02:27:58,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4090 to 4090. [2022-07-13 02:27:58,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4090 states, 3978 states have (on average 2.7702362996480643) internal successors, (11020), 4089 states have internal predecessors, (11020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:58,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4090 states to 4090 states and 11020 transitions. [2022-07-13 02:27:58,533 INFO L78 Accepts]: Start accepts. Automaton has 4090 states and 11020 transitions. Word has length 9 [2022-07-13 02:27:58,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:58,534 INFO L495 AbstractCegarLoop]: Abstraction has 4090 states and 11020 transitions. [2022-07-13 02:27:58,534 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) [2022-07-13 02:27:58,534 INFO L276 IsEmpty]: Start isEmpty. Operand 4090 states and 11020 transitions. [2022-07-13 02:27:58,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:27:58,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:58,536 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:27:58,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 02:27:58,537 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)] === [2022-07-13 02:27:58,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:58,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1244346168, now seen corresponding path program 1 times [2022-07-13 02:27:58,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:58,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547517947] [2022-07-13 02:27:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:58,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:58,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:58,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:58,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547517947] [2022-07-13 02:27:58,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547517947] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:27:58,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342421225] [2022-07-13 02:27:58,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:58,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:27:58,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:27:58,567 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) [2022-07-13 02:27:58,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:27:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:58,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:27:58,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:27:58,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:58,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:27:58,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342421225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:58,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:27:58,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-07-13 02:27:58,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424007069] [2022-07-13 02:27:58,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:58,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:27:58,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:58,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:27:58,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:27:58,681 INFO L87 Difference]: Start difference. First operand 4090 states and 11020 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) [2022-07-13 02:27:58,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:58,760 INFO L93 Difference]: Finished difference Result 3858 states and 10356 transitions. [2022-07-13 02:27:58,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:27:58,760 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 [2022-07-13 02:27:58,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:58,779 INFO L225 Difference]: With dead ends: 3858 [2022-07-13 02:27:58,779 INFO L226 Difference]: Without dead ends: 3858 [2022-07-13 02:27:58,780 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 [2022-07-13 02:27:58,780 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 91 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:58,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 9 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:27:58,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2022-07-13 02:27:58,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3858. [2022-07-13 02:27:58,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3767 states have (on average 2.7491372444916378) internal successors, (10356), 3857 states have internal predecessors, (10356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:58,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 10356 transitions. [2022-07-13 02:27:58,913 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 10356 transitions. Word has length 9 [2022-07-13 02:27:58,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:58,914 INFO L495 AbstractCegarLoop]: Abstraction has 3858 states and 10356 transitions. [2022-07-13 02:27:58,914 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) [2022-07-13 02:27:58,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 10356 transitions. [2022-07-13 02:27:58,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:27:58,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:58,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:27:58,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 02:27:59,138 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 [2022-07-13 02:27:59,139 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-13 02:27:59,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:59,139 INFO L85 PathProgramCache]: Analyzing trace with hash 2136316127, now seen corresponding path program 1 times [2022-07-13 02:27:59,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:59,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677988377] [2022-07-13 02:27:59,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:59,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:59,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:59,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:59,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677988377] [2022-07-13 02:27:59,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677988377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:59,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:27:59,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:27:59,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757006772] [2022-07-13 02:27:59,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:59,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:27:59,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:59,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:27:59,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:27:59,173 INFO L87 Difference]: Start difference. First operand 3858 states and 10356 transitions. Second operand has 5 states, 4 states have (on average 2.75) 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) [2022-07-13 02:27:59,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:59,432 INFO L93 Difference]: Finished difference Result 4988 states and 12759 transitions. [2022-07-13 02:27:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:27:59,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) 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 [2022-07-13 02:27:59,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:59,455 INFO L225 Difference]: With dead ends: 4988 [2022-07-13 02:27:59,455 INFO L226 Difference]: Without dead ends: 4988 [2022-07-13 02:27:59,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:27:59,456 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 117 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:59,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 37 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:27:59,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2022-07-13 02:27:59,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4218. [2022-07-13 02:27:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4218 states, 4136 states have (on average 2.766441005802708) internal successors, (11442), 4217 states have internal predecessors, (11442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:27:59,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 11442 transitions. [2022-07-13 02:27:59,612 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 11442 transitions. Word has length 11 [2022-07-13 02:27:59,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:59,613 INFO L495 AbstractCegarLoop]: Abstraction has 4218 states and 11442 transitions. [2022-07-13 02:27:59,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) 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) [2022-07-13 02:27:59,613 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 11442 transitions. [2022-07-13 02:27:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:27:59,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:59,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:27:59,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 02:27:59,615 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-13 02:27:59,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:59,616 INFO L85 PathProgramCache]: Analyzing trace with hash 2136316169, now seen corresponding path program 1 times [2022-07-13 02:27:59,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:59,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242353056] [2022-07-13 02:27:59,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:59,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:59,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:59,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:59,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242353056] [2022-07-13 02:27:59,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242353056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:59,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:27:59,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:27:59,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901401606] [2022-07-13 02:27:59,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:59,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:27:59,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:59,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:27:59,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:27:59,661 INFO L87 Difference]: Start difference. First operand 4218 states and 11442 transitions. Second operand has 5 states, 4 states have (on average 2.75) 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) [2022-07-13 02:27:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:59,931 INFO L93 Difference]: Finished difference Result 4516 states and 11465 transitions. [2022-07-13 02:27:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:27:59,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) 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 [2022-07-13 02:27:59,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:59,945 INFO L225 Difference]: With dead ends: 4516 [2022-07-13 02:27:59,946 INFO L226 Difference]: Without dead ends: 4480 [2022-07-13 02:27:59,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:27:59,947 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 110 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:59,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 52 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:27:59,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2022-07-13 02:28:00,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 3800. [2022-07-13 02:28:00,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3800 states, 3720 states have (on average 2.717204301075269) internal successors, (10108), 3799 states have internal predecessors, (10108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:00,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3800 states to 3800 states and 10108 transitions. [2022-07-13 02:28:00,071 INFO L78 Accepts]: Start accepts. Automaton has 3800 states and 10108 transitions. Word has length 11 [2022-07-13 02:28:00,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:00,071 INFO L495 AbstractCegarLoop]: Abstraction has 3800 states and 10108 transitions. [2022-07-13 02:28:00,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) 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) [2022-07-13 02:28:00,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3800 states and 10108 transitions. [2022-07-13 02:28:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:28:00,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:00,073 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-07-13 02:28:00,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 02:28:00,073 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-13 02:28:00,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:00,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1815702615, now seen corresponding path program 1 times [2022-07-13 02:28:00,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:00,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297555466] [2022-07-13 02:28:00,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:00,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:28:00,087 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:28:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:28:00,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:28:00,099 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:28:00,100 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-07-13 02:28:00,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2022-07-13 02:28:00,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2022-07-13 02:28:00,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2022-07-13 02:28:00,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2022-07-13 02:28:00,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2022-07-13 02:28:00,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2022-07-13 02:28:00,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2022-07-13 02:28:00,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2022-07-13 02:28:00,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2022-07-13 02:28:00,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2022-07-13 02:28:00,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2022-07-13 02:28:00,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2022-07-13 02:28:00,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2022-07-13 02:28:00,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2022-07-13 02:28:00,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2022-07-13 02:28:00,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2022-07-13 02:28:00,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 02:28:00,104 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:00,104 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 02:28:00,104 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-13 02:28:00,119 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-13 02:28:00,122 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:28:00,122 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 218 transitions, 466 flow [2022-07-13 02:28:00,122 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 218 transitions, 466 flow [2022-07-13 02:28:00,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 218 transitions, 466 flow [2022-07-13 02:28:00,170 INFO L129 PetriNetUnfolder]: 62/465 cut-off events. [2022-07-13 02:28:00,171 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-07-13 02:28:00,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 465 events. 62/465 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1568 event pairs, 1 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 313. Up to 16 conditions per place. [2022-07-13 02:28:00,194 INFO L116 LiptonReduction]: Number of co-enabled transitions 21816 [2022-07-13 02:28:04,634 INFO L131 LiptonReduction]: Checked pairs total: 53415 [2022-07-13 02:28:04,634 INFO L133 LiptonReduction]: Total number of compositions: 200 [2022-07-13 02:28:04,635 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 90 transitions, 210 flow [2022-07-13 02:28:06,504 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) [2022-07-13 02:28:06,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:28:06,506 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@4b8aa2c5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@25c3bf91 [2022-07-13 02:28:06,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-07-13 02:28:06,812 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) [2022-07-13 02:28:06,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:28:06,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:06,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:28:06,813 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)] === [2022-07-13 02:28:06,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:06,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1332987881, now seen corresponding path program 1 times [2022-07-13 02:28:06,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:06,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598001962] [2022-07-13 02:28:06,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:06,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:06,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:06,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598001962] [2022-07-13 02:28:06,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598001962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:06,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:06,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:28:06,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107679260] [2022-07-13 02:28:06,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:06,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:06,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:06,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:06,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:06,986 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) [2022-07-13 02:28:07,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:07,901 INFO L93 Difference]: Finished difference Result 65753 states and 242942 transitions. [2022-07-13 02:28:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:07,902 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 [2022-07-13 02:28:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:08,959 INFO L225 Difference]: With dead ends: 65753 [2022-07-13 02:28:08,960 INFO L226 Difference]: Without dead ends: 65627 [2022-07-13 02:28:08,960 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 [2022-07-13 02:28:08,961 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:08,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 22 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65627 states. [2022-07-13 02:28:11,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65627 to 65627. [2022-07-13 02:28:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65627 states, 64688 states have (on average 3.7490106356665844) internal successors, (242516), 65626 states have internal predecessors, (242516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65627 states to 65627 states and 242516 transitions. [2022-07-13 02:28:11,892 INFO L78 Accepts]: Start accepts. Automaton has 65627 states and 242516 transitions. Word has length 5 [2022-07-13 02:28:11,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:11,892 INFO L495 AbstractCegarLoop]: Abstraction has 65627 states and 242516 transitions. [2022-07-13 02:28:11,892 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) [2022-07-13 02:28:11,892 INFO L276 IsEmpty]: Start isEmpty. Operand 65627 states and 242516 transitions. [2022-07-13 02:28:11,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:28:11,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:11,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:11,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 02:28:11,893 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)] === [2022-07-13 02:28:11,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:11,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1109909334, now seen corresponding path program 1 times [2022-07-13 02:28:11,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:11,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387745869] [2022-07-13 02:28:11,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:11,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:11,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:11,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:11,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387745869] [2022-07-13 02:28:11,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387745869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:11,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:11,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:28:11,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409329720] [2022-07-13 02:28:11,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:11,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:11,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:11,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:11,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:11,931 INFO L87 Difference]: Start difference. First operand 65627 states and 242516 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-07-13 02:28:13,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:13,050 INFO L93 Difference]: Finished difference Result 87108 states and 297054 transitions. [2022-07-13 02:28:13,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:13,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2022-07-13 02:28:13,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:13,582 INFO L225 Difference]: With dead ends: 87108 [2022-07-13 02:28:13,582 INFO L226 Difference]: Without dead ends: 86964 [2022-07-13 02:28:13,582 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 [2022-07-13 02:28:13,583 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 46 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:13,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 20 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:14,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86964 states. [2022-07-13 02:28:16,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86964 to 81528. [2022-07-13 02:28:16,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81528 states, 80637 states have (on average 3.5427037216166277) internal successors, (285673), 81527 states have internal predecessors, (285673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81528 states to 81528 states and 285673 transitions. [2022-07-13 02:28:16,657 INFO L78 Accepts]: Start accepts. Automaton has 81528 states and 285673 transitions. Word has length 7 [2022-07-13 02:28:16,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:16,657 INFO L495 AbstractCegarLoop]: Abstraction has 81528 states and 285673 transitions. [2022-07-13 02:28:16,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-07-13 02:28:16,657 INFO L276 IsEmpty]: Start isEmpty. Operand 81528 states and 285673 transitions. [2022-07-13 02:28:16,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:28:16,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:16,658 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:28:16,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 02:28:16,658 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)] === [2022-07-13 02:28:16,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:16,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1679912268, now seen corresponding path program 1 times [2022-07-13 02:28:16,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:16,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551649102] [2022-07-13 02:28:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:16,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 02:28:16,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:16,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551649102] [2022-07-13 02:28:16,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551649102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:16,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:16,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:28:16,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758928401] [2022-07-13 02:28:16,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:16,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:16,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:16,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:16,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:16,686 INFO L87 Difference]: Start difference. First operand 81528 states and 285673 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) [2022-07-13 02:28:17,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:17,810 INFO L93 Difference]: Finished difference Result 77418 states and 270265 transitions. [2022-07-13 02:28:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:17,811 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 [2022-07-13 02:28:17,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:18,139 INFO L225 Difference]: With dead ends: 77418 [2022-07-13 02:28:18,140 INFO L226 Difference]: Without dead ends: 77418 [2022-07-13 02:28:18,140 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 [2022-07-13 02:28:18,141 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 49 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:18,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 20 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:18,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77418 states. [2022-07-13 02:28:20,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77418 to 77418. [2022-07-13 02:28:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77418 states, 76665 states have (on average 3.5252722885280114) internal successors, (270265), 77417 states have internal predecessors, (270265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77418 states to 77418 states and 270265 transitions. [2022-07-13 02:28:20,741 INFO L78 Accepts]: Start accepts. Automaton has 77418 states and 270265 transitions. Word has length 9 [2022-07-13 02:28:20,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:20,741 INFO L495 AbstractCegarLoop]: Abstraction has 77418 states and 270265 transitions. [2022-07-13 02:28:20,741 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) [2022-07-13 02:28:20,741 INFO L276 IsEmpty]: Start isEmpty. Operand 77418 states and 270265 transitions. [2022-07-13 02:28:20,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:28:20,742 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:20,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:28:20,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 02:28:20,742 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)] === [2022-07-13 02:28:20,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:20,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1679912302, now seen corresponding path program 1 times [2022-07-13 02:28:20,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:20,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250371714] [2022-07-13 02:28:20,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:20,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:20,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:20,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:20,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250371714] [2022-07-13 02:28:20,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250371714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:20,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:20,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:28:20,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345846676] [2022-07-13 02:28:20,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:20,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:28:20,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:20,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:28:20,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:28:20,786 INFO L87 Difference]: Start difference. First operand 77418 states and 270265 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) [2022-07-13 02:28:21,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:21,866 INFO L93 Difference]: Finished difference Result 73308 states and 254857 transitions. [2022-07-13 02:28:21,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:28:21,867 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 [2022-07-13 02:28:21,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:22,198 INFO L225 Difference]: With dead ends: 73308 [2022-07-13 02:28:22,198 INFO L226 Difference]: Without dead ends: 73308 [2022-07-13 02:28:22,199 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 [2022-07-13 02:28:22,199 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:22,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 11 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:28:22,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73308 states. [2022-07-13 02:28:23,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73308 to 73308. [2022-07-13 02:28:23,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73308 states, 72693 states have (on average 3.5059359223033857) internal successors, (254857), 73307 states have internal predecessors, (254857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:24,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73308 states to 73308 states and 254857 transitions. [2022-07-13 02:28:24,708 INFO L78 Accepts]: Start accepts. Automaton has 73308 states and 254857 transitions. Word has length 9 [2022-07-13 02:28:24,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:24,709 INFO L495 AbstractCegarLoop]: Abstraction has 73308 states and 254857 transitions. [2022-07-13 02:28:24,709 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) [2022-07-13 02:28:24,709 INFO L276 IsEmpty]: Start isEmpty. Operand 73308 states and 254857 transitions. [2022-07-13 02:28:24,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:28:24,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:24,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:24,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 02:28:24,710 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)] === [2022-07-13 02:28:24,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:24,710 INFO L85 PathProgramCache]: Analyzing trace with hash 476053174, now seen corresponding path program 1 times [2022-07-13 02:28:24,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:24,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726289695] [2022-07-13 02:28:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:24,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:24,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:24,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:24,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726289695] [2022-07-13 02:28:24,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726289695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:24,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:24,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:28:24,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305925496] [2022-07-13 02:28:24,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:24,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:28:24,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:24,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:28:24,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:28:24,779 INFO L87 Difference]: Start difference. First operand 73308 states and 254857 transitions. Second operand has 5 states, 4 states have (on average 2.75) 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) [2022-07-13 02:28:25,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:25,676 INFO L93 Difference]: Finished difference Result 103589 states and 345010 transitions. [2022-07-13 02:28:25,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:25,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) 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 [2022-07-13 02:28:25,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:26,085 INFO L225 Difference]: With dead ends: 103589 [2022-07-13 02:28:26,085 INFO L226 Difference]: Without dead ends: 103589 [2022-07-13 02:28:26,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:26,086 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 214 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:26,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 84 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:28:26,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103589 states. [2022-07-13 02:28:28,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103589 to 90153. [2022-07-13 02:28:29,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90153 states, 89462 states have (on average 3.4796002772126715) internal successors, (311292), 90152 states have internal predecessors, (311292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:29,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90153 states to 90153 states and 311292 transitions. [2022-07-13 02:28:29,949 INFO L78 Accepts]: Start accepts. Automaton has 90153 states and 311292 transitions. Word has length 11 [2022-07-13 02:28:29,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:29,949 INFO L495 AbstractCegarLoop]: Abstraction has 90153 states and 311292 transitions. [2022-07-13 02:28:29,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) 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) [2022-07-13 02:28:29,964 INFO L276 IsEmpty]: Start isEmpty. Operand 90153 states and 311292 transitions. [2022-07-13 02:28:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:28:29,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:29,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:29,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 02:28:29,966 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)] === [2022-07-13 02:28:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:29,972 INFO L85 PathProgramCache]: Analyzing trace with hash 476053085, now seen corresponding path program 1 times [2022-07-13 02:28:29,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:29,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704634454] [2022-07-13 02:28:29,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:29,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:28:30,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:30,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704634454] [2022-07-13 02:28:30,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704634454] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:30,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:30,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:28:30,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17039471] [2022-07-13 02:28:30,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:30,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:28:30,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:30,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:28:30,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:28:30,044 INFO L87 Difference]: Start difference. First operand 90153 states and 311292 transitions. Second operand has 5 states, 4 states have (on average 2.75) 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) [2022-07-13 02:28:30,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:30,969 INFO L93 Difference]: Finished difference Result 108225 states and 353326 transitions. [2022-07-13 02:28:30,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:30,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) 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 [2022-07-13 02:28:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:31,394 INFO L225 Difference]: With dead ends: 108225 [2022-07-13 02:28:31,395 INFO L226 Difference]: Without dead ends: 108081 [2022-07-13 02:28:31,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:31,395 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 241 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:31,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 61 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:28:31,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108081 states. [2022-07-13 02:28:34,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108081 to 89283. [2022-07-13 02:28:34,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89283 states, 88670 states have (on average 3.4121010488327506) internal successors, (302551), 89282 states have internal predecessors, (302551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:34,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89283 states to 89283 states and 302551 transitions. [2022-07-13 02:28:34,648 INFO L78 Accepts]: Start accepts. Automaton has 89283 states and 302551 transitions. Word has length 11 [2022-07-13 02:28:34,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:34,648 INFO L495 AbstractCegarLoop]: Abstraction has 89283 states and 302551 transitions. [2022-07-13 02:28:34,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) 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) [2022-07-13 02:28:34,648 INFO L276 IsEmpty]: Start isEmpty. Operand 89283 states and 302551 transitions. [2022-07-13 02:28:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 02:28:34,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:34,650 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:34,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 02:28:34,651 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-13 02:28:34,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1323297584, now seen corresponding path program 1 times [2022-07-13 02:28:34,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:34,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624816077] [2022-07-13 02:28:34,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:34,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 02:28:34,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:34,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624816077] [2022-07-13 02:28:34,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624816077] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:34,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:34,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:28:34,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19347835] [2022-07-13 02:28:34,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:34,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:28:34,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:34,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:28:34,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:28:34,691 INFO L87 Difference]: Start difference. First operand 89283 states and 302551 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-07-13 02:28:36,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:36,468 INFO L93 Difference]: Finished difference Result 113288 states and 377408 transitions. [2022-07-13 02:28:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:36,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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 15 [2022-07-13 02:28:36,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:36,970 INFO L225 Difference]: With dead ends: 113288 [2022-07-13 02:28:36,970 INFO L226 Difference]: Without dead ends: 113288 [2022-07-13 02:28:36,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:36,971 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 168 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:36,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 77 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:28:37,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113288 states. [2022-07-13 02:28:39,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113288 to 97924. [2022-07-13 02:28:40,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97924 states, 97325 states have (on average 3.4810788594913946) internal successors, (338796), 97923 states have internal predecessors, (338796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97924 states to 97924 states and 338796 transitions. [2022-07-13 02:28:40,447 INFO L78 Accepts]: Start accepts. Automaton has 97924 states and 338796 transitions. Word has length 15 [2022-07-13 02:28:40,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:40,448 INFO L495 AbstractCegarLoop]: Abstraction has 97924 states and 338796 transitions. [2022-07-13 02:28:40,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-07-13 02:28:40,449 INFO L276 IsEmpty]: Start isEmpty. Operand 97924 states and 338796 transitions. [2022-07-13 02:28:40,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 02:28:40,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:40,452 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:40,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 02:28:40,453 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-13 02:28:40,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:40,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1323297657, now seen corresponding path program 1 times [2022-07-13 02:28:40,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:40,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252109094] [2022-07-13 02:28:40,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:40,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:28:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 02:28:40,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:28:40,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252109094] [2022-07-13 02:28:40,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252109094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:28:40,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:28:40,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:28:40,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106759802] [2022-07-13 02:28:40,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:28:40,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:28:40,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:28:40,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:28:40,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:28:40,500 INFO L87 Difference]: Start difference. First operand 97924 states and 338796 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-07-13 02:28:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:28:42,425 INFO L93 Difference]: Finished difference Result 107703 states and 353978 transitions. [2022-07-13 02:28:42,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:28:42,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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 15 [2022-07-13 02:28:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:28:42,977 INFO L225 Difference]: With dead ends: 107703 [2022-07-13 02:28:42,977 INFO L226 Difference]: Without dead ends: 107559 [2022-07-13 02:28:42,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:28:42,978 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 157 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:28:42,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 99 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:28:43,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107559 states. [2022-07-13 02:28:45,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107559 to 90318. [2022-07-13 02:28:45,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90318 states, 89751 states have (on average 3.423805862887322) internal successors, (307290), 90317 states have internal predecessors, (307290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:28:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90318 states to 90318 states and 307290 transitions. [2022-07-13 02:28:46,176 INFO L78 Accepts]: Start accepts. Automaton has 90318 states and 307290 transitions. Word has length 15 [2022-07-13 02:28:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:28:46,176 INFO L495 AbstractCegarLoop]: Abstraction has 90318 states and 307290 transitions. [2022-07-13 02:28:46,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-07-13 02:28:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 90318 states and 307290 transitions. [2022-07-13 02:28:46,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 02:28:46,178 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:28:46,178 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-07-13 02:28:46,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 02:28:46,178 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)] === [2022-07-13 02:28:46,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:28:46,179 INFO L85 PathProgramCache]: Analyzing trace with hash -642675821, now seen corresponding path program 1 times [2022-07-13 02:28:46,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:28:46,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880801571] [2022-07-13 02:28:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:28:46,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:28:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:28:46,192 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:28:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:28:46,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:28:46,204 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:28:46,205 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2022-07-13 02:28:46,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-07-13 02:28:46,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-07-13 02:28:46,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-07-13 02:28:46,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-07-13 02:28:46,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-07-13 02:28:46,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-07-13 02:28:46,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-07-13 02:28:46,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-07-13 02:28:46,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-07-13 02:28:46,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-07-13 02:28:46,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-07-13 02:28:46,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-07-13 02:28:46,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-07-13 02:28:46,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-07-13 02:28:46,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-07-13 02:28:46,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-07-13 02:28:46,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-07-13 02:28:46,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-07-13 02:28:46,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-07-13 02:28:46,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-07-13 02:28:46,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 02:28:46,209 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:28:46,209 WARN L231 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 02:28:46,209 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-07-13 02:28:46,223 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-13 02:28:46,226 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:28:46,226 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 256 transitions, 556 flow [2022-07-13 02:28:46,226 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 256 transitions, 556 flow [2022-07-13 02:28:46,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 229 places, 256 transitions, 556 flow [2022-07-13 02:28:46,307 INFO L129 PetriNetUnfolder]: 96/709 cut-off events. [2022-07-13 02:28:46,307 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-07-13 02:28:46,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 709 events. 96/709 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2788 event pairs, 6 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 485. Up to 32 conditions per place. [2022-07-13 02:28:46,344 INFO L116 LiptonReduction]: Number of co-enabled transitions 34704