./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:08:24,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:08:24,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:08:24,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:08:24,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:08:24,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:08:24,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:08:24,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:08:24,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:08:24,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:08:24,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:08:24,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:08:24,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:08:24,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:08:24,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:08:24,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:08:24,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:08:24,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:08:24,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:08:24,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:08:24,373 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:08:24,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:08:24,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:08:24,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:08:24,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:08:24,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:08:24,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:08:24,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:08:24,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:08:24,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:08:24,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:08:24,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:08:24,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:08:24,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:08:24,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:08:24,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:08:24,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:08:24,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:08:24,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:08:24,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:08:24,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:08:24,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:08:24,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:08:24,407 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:08:24,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:08:24,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:08:24,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:08:24,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:08:24,408 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:08:24,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:08:24,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:08:24,409 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:08:24,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:08:24,409 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:08:24,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:08:24,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:08:24,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:08:24,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:08:24,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:08:24,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:08:24,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:08:24,410 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:08:24,411 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:08:24,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:08:24,411 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:08:24,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:08:24,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:08:24,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:08:24,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:08:24,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:08:24,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:08:24,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:08:24,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:08:24,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:08:24,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:08:24,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:08:24,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b [2022-07-14 14:08:24,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:08:24,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:08:24,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:08:24,629 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:08:24,630 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:08:24,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2022-07-14 14:08:24,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f343f4b7/3c8ae6672ef24b52861686a9938c19d4/FLAGd289ae68b [2022-07-14 14:08:25,157 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:08:25,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2022-07-14 14:08:25,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f343f4b7/3c8ae6672ef24b52861686a9938c19d4/FLAGd289ae68b [2022-07-14 14:08:25,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f343f4b7/3c8ae6672ef24b52861686a9938c19d4 [2022-07-14 14:08:25,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:08:25,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:08:25,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:08:25,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:08:25,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:08:25,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed08a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25, skipping insertion in model container [2022-07-14 14:08:25,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:08:25,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:08:25,492 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_04-munge_racefree.i[30176,30189] [2022-07-14 14:08:25,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:08:25,522 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:08:25,559 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_04-munge_racefree.i[30176,30189] [2022-07-14 14:08:25,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:08:25,595 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:08:25,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25 WrapperNode [2022-07-14 14:08:25,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:08:25,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:08:25,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:08:25,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:08:25,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,652 INFO L137 Inliner]: procedures = 172, calls = 37, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 216 [2022-07-14 14:08:25,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:08:25,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:08:25,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:08:25,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:08:25,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:08:25,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:08:25,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:08:25,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:08:25,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (1/1) ... [2022-07-14 14:08:25,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:08:25,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:25,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 14:08:25,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 14:08:25,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:08:25,775 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-14 14:08:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-14 14:08:25,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:08:25,776 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:08:25,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:08:25,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:08:25,776 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-14 14:08:25,776 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-14 14:08:25,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:08:25,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:08:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:08:25,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:08:25,778 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:08:25,906 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:08:25,908 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:08:26,237 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:08:26,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:08:26,247 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2022-07-14 14:08:26,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:08:26 BoogieIcfgContainer [2022-07-14 14:08:26,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:08:26,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:08:26,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:08:26,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:08:26,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:08:25" (1/3) ... [2022-07-14 14:08:26,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387caa5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:08:26, skipping insertion in model container [2022-07-14 14:08:26,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:25" (2/3) ... [2022-07-14 14:08:26,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387caa5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:08:26, skipping insertion in model container [2022-07-14 14:08:26,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:08:26" (3/3) ... [2022-07-14 14:08:26,258 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_04-munge_racefree.i [2022-07-14 14:08:26,264 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:08:26,271 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:08:26,271 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-07-14 14:08:26,271 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:08:26,324 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-14 14:08:26,350 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:08:26,358 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 240 transitions, 502 flow [2022-07-14 14:08:26,360 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 240 transitions, 502 flow [2022-07-14 14:08:26,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 213 places, 240 transitions, 502 flow [2022-07-14 14:08:26,491 INFO L129 PetriNetUnfolder]: 58/431 cut-off events. [2022-07-14 14:08:26,491 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-07-14 14:08:26,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 431 events. 58/431 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1904 event pairs, 0 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 227. Up to 8 conditions per place. [2022-07-14 14:08:26,509 INFO L116 LiptonReduction]: Number of co-enabled transitions 23936 [2022-07-14 14:08:29,903 INFO L131 LiptonReduction]: Checked pairs total: 39764 [2022-07-14 14:08:29,903 INFO L133 LiptonReduction]: Total number of compositions: 211 [2022-07-14 14:08:29,909 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 93 transitions, 208 flow [2022-07-14 14:08:30,081 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5708 states, 5474 states have (on average 3.817500913408842) internal successors, (20897), 5707 states have internal predecessors, (20897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:30,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:08:30,102 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@2bade93e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3db551a [2022-07-14 14:08:30,102 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-07-14 14:08:30,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 5708 states, 5474 states have (on average 3.817500913408842) internal successors, (20897), 5707 states have internal predecessors, (20897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:30,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 14:08:30,120 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:30,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 14:08:30,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-07-14 14:08:30,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:30,126 INFO L85 PathProgramCache]: Analyzing trace with hash 29928937, now seen corresponding path program 1 times [2022-07-14 14:08:30,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:30,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264368317] [2022-07-14 14:08:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:30,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:30,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:30,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264368317] [2022-07-14 14:08:30,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264368317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:30,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:08:30,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:08:30,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078870458] [2022-07-14 14:08:30,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:30,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:08:30,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:30,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:08:30,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:08:30,288 INFO L87 Difference]: Start difference. First operand has 5708 states, 5474 states have (on average 3.817500913408842) internal successors, (20897), 5707 states have internal predecessors, (20897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:30,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:30,436 INFO L93 Difference]: Finished difference Result 5538 states and 15537 transitions. [2022-07-14 14:08:30,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:08:30,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-07-14 14:08:30,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:30,468 INFO L225 Difference]: With dead ends: 5538 [2022-07-14 14:08:30,469 INFO L226 Difference]: Without dead ends: 5454 [2022-07-14 14:08:30,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:08:30,472 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 21 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:30,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 22 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:08:30,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5454 states. [2022-07-14 14:08:30,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5454 to 5454. [2022-07-14 14:08:30,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5250 states have (on average 2.9123809523809525) internal successors, (15290), 5453 states have internal predecessors, (15290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:30,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 15290 transitions. [2022-07-14 14:08:30,689 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 15290 transitions. Word has length 4 [2022-07-14 14:08:30,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:30,689 INFO L495 AbstractCegarLoop]: Abstraction has 5454 states and 15290 transitions. [2022-07-14 14:08:30,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:30,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 15290 transitions. [2022-07-14 14:08:30,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:08:30,690 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:30,690 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-07-14 14:08:30,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:08:30,690 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-07-14 14:08:30,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:30,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1303019756, now seen corresponding path program 1 times [2022-07-14 14:08:30,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:30,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846216529] [2022-07-14 14:08:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:30,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:08:30,711 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:08:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:08:30,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:08:30,749 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 14:08:30,751 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2022-07-14 14:08:30,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2022-07-14 14:08:30,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2022-07-14 14:08:30,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2022-07-14 14:08:30,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2022-07-14 14:08:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2022-07-14 14:08:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2022-07-14 14:08:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2022-07-14 14:08:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2022-07-14 14:08:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2022-07-14 14:08:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2022-07-14 14:08:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2022-07-14 14:08:30,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2022-07-14 14:08:30,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2022-07-14 14:08:30,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2022-07-14 14:08:30,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2022-07-14 14:08:30,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2022-07-14 14:08:30,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2022-07-14 14:08:30,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2022-07-14 14:08:30,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2022-07-14 14:08:30,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2022-07-14 14:08:30,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2022-07-14 14:08:30,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2022-07-14 14:08:30,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2022-07-14 14:08:30,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2022-07-14 14:08:30,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2022-07-14 14:08:30,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:08:30,768 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-14 14:08:30,769 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-14 14:08:30,769 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-14 14:08:30,808 INFO L135 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-07-14 14:08:30,815 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:08:30,815 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 374 transitions, 796 flow [2022-07-14 14:08:30,815 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 374 transitions, 796 flow [2022-07-14 14:08:30,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 323 places, 374 transitions, 796 flow [2022-07-14 14:08:31,007 INFO L129 PetriNetUnfolder]: 197/1297 cut-off events. [2022-07-14 14:08:31,008 INFO L130 PetriNetUnfolder]: For 72/78 co-relation queries the response was YES. [2022-07-14 14:08:31,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1394 conditions, 1297 events. 197/1297 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8207 event pairs, 1 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 780. Up to 32 conditions per place. [2022-07-14 14:08:31,070 INFO L116 LiptonReduction]: Number of co-enabled transitions 83200 [2022-07-14 14:08:35,646 INFO L131 LiptonReduction]: Checked pairs total: 166192 [2022-07-14 14:08:35,646 INFO L133 LiptonReduction]: Total number of compositions: 325 [2022-07-14 14:08:35,649 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 120 places, 163 transitions, 374 flow