./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.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/04-mutex_17-ps_add1_nr.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 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:02:39,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:02:39,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:02:39,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:02:39,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:02:39,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:02:39,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:02:39,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:02:39,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:02:39,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:02:39,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:02:39,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:02:39,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:02:39,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:02:39,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:02:39,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:02:39,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:02:39,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:02:39,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:02:39,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:02:39,450 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:02:39,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:02:39,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:02:39,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:02:39,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:02:39,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:02:39,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:02:39,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:02:39,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:02:39,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:02:39,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:02:39,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:02:39,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:02:39,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:02:39,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:02:39,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:02:39,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:02:39,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:02:39,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:02:39,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:02:39,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:02:39,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:02:39,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:02:39,486 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:02:39,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:02:39,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:02:39,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:02:39,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:02:39,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:02:39,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:02:39,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:02:39,491 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:02:39,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:02:39,491 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:02:39,491 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:02:39,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:02:39,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:02:39,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:02:39,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:02:39,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:02:39,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:02:39,492 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:02:39,493 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:02:39,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:02:39,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:02:39,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:02:39,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:02:39,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:02:39,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:02:39,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:02:39,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:02:39,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:02:39,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:02:39,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:02:39,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:02:39,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:02:39,495 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 [2022-07-14 14:02:39,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:02:39,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:02:39,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:02:39,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:02:39,714 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:02:39,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2022-07-14 14:02:39,788 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12940a9e0/2b171192e0094e12a2eb7d41f396e2e3/FLAG051e2f900 [2022-07-14 14:02:40,175 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:02:40,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2022-07-14 14:02:40,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12940a9e0/2b171192e0094e12a2eb7d41f396e2e3/FLAG051e2f900 [2022-07-14 14:02:40,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12940a9e0/2b171192e0094e12a2eb7d41f396e2e3 [2022-07-14 14:02:40,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:02:40,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:02:40,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:02:40,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:02:40,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:02:40,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:40,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118a5b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40, skipping insertion in model container [2022-07-14 14:02:40,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:40,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:02:40,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:02:40,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:02:40,918 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:02:40,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:02:40,975 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:02:40,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40 WrapperNode [2022-07-14 14:02:40,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:02:40,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:02:40,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:02:40,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:02:40,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:41,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:41,017 INFO L137 Inliner]: procedures = 266, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2022-07-14 14:02:41,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:02:41,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:02:41,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:02:41,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:02:41,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:41,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:41,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:41,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:41,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:41,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:41,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:41,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:02:41,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:02:41,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:02:41,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:02:41,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (1/1) ... [2022-07-14 14:02:41,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:02:41,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:02:41,072 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 14:02:41,074 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 14:02:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:02:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:02:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:02:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:02:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:02:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-14 14:02:41,097 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-14 14:02:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:02:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:02:41,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:02:41,101 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 14:02:41,202 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:02:41,203 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:02:41,320 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:02:41,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:02:41,325 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 14:02:41,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:02:41 BoogieIcfgContainer [2022-07-14 14:02:41,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:02:41,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:02:41,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:02:41,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:02:41,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:02:40" (1/3) ... [2022-07-14 14:02:41,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1df0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:02:41, skipping insertion in model container [2022-07-14 14:02:41,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:40" (2/3) ... [2022-07-14 14:02:41,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1df0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:02:41, skipping insertion in model container [2022-07-14 14:02:41,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:02:41" (3/3) ... [2022-07-14 14:02:41,348 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2022-07-14 14:02:41,352 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:02:41,358 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:02:41,363 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-14 14:02:41,363 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:02:41,392 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-14 14:02:41,424 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:02:41,435 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 86 transitions, 177 flow [2022-07-14 14:02:41,440 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 86 transitions, 177 flow [2022-07-14 14:02:41,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 86 transitions, 177 flow [2022-07-14 14:02:41,483 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2022-07-14 14:02:41,483 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-14 14:02:41,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-07-14 14:02:41,490 INFO L116 LiptonReduction]: Number of co-enabled transitions 1170 [2022-07-14 14:02:44,117 INFO L131 LiptonReduction]: Checked pairs total: 2022 [2022-07-14 14:02:44,117 INFO L133 LiptonReduction]: Total number of compositions: 100 [2022-07-14 14:02:44,123 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 22 transitions, 49 flow [2022-07-14 14:02:44,145 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 91 states, 64 states have (on average 2.609375) internal successors, (167), 90 states have internal predecessors, (167), 0 states have call successors, (0), 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 14:02:44,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:02:44,169 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@2b303e21, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@292d3bef [2022-07-14 14:02:44,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-07-14 14:02:44,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 64 states have (on average 2.609375) internal successors, (167), 90 states have internal predecessors, (167), 0 states have call successors, (0), 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 14:02:44,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:02:44,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:44,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:02:44,177 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:02:44,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:44,183 INFO L85 PathProgramCache]: Analyzing trace with hash 322579, now seen corresponding path program 1 times [2022-07-14 14:02:44,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:44,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422842976] [2022-07-14 14:02:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:44,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:44,316 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 14:02:44,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:44,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422842976] [2022-07-14 14:02:44,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422842976] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:44,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:44,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:02:44,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842270162] [2022-07-14 14:02:44,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:44,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:02:44,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:02:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:44,336 INFO L87 Difference]: Start difference. First operand has 91 states, 64 states have (on average 2.609375) internal successors, (167), 90 states have internal predecessors, (167), 0 states have call successors, (0), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 14:02:44,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:44,380 INFO L93 Difference]: Finished difference Result 74 states and 128 transitions. [2022-07-14 14:02:44,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:02:44,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-07-14 14:02:44,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:44,387 INFO L225 Difference]: With dead ends: 74 [2022-07-14 14:02:44,388 INFO L226 Difference]: Without dead ends: 70 [2022-07-14 14:02:44,388 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 14:02:44,390 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:44,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:44,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-07-14 14:02:44,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2022-07-14 14:02:44,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 2.1481481481481484) internal successors, (116), 66 states have internal predecessors, (116), 0 states have call successors, (0), 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 14:02:44,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 116 transitions. [2022-07-14 14:02:44,413 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 116 transitions. Word has length 3 [2022-07-14 14:02:44,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:44,413 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 116 transitions. [2022-07-14 14:02:44,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 14:02:44,414 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 116 transitions. [2022-07-14 14:02:44,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:02:44,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:44,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:02:44,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:02:44,415 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:02:44,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:44,415 INFO L85 PathProgramCache]: Analyzing trace with hash 322597, now seen corresponding path program 1 times [2022-07-14 14:02:44,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:44,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526955385] [2022-07-14 14:02:44,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:44,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:44,453 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 14:02:44,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:44,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526955385] [2022-07-14 14:02:44,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526955385] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:44,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:44,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:02:44,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710078920] [2022-07-14 14:02:44,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:44,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:02:44,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:44,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:02:44,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:44,456 INFO L87 Difference]: Start difference. First operand 67 states and 116 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 14:02:44,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:44,472 INFO L93 Difference]: Finished difference Result 57 states and 98 transitions. [2022-07-14 14:02:44,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:02:44,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-07-14 14:02:44,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:44,474 INFO L225 Difference]: With dead ends: 57 [2022-07-14 14:02:44,474 INFO L226 Difference]: Without dead ends: 57 [2022-07-14 14:02:44,474 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 14:02:44,475 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:44,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:44,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-07-14 14:02:44,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-07-14 14:02:44,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 46 states have (on average 2.130434782608696) internal successors, (98), 56 states have internal predecessors, (98), 0 states have call successors, (0), 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 14:02:44,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 98 transitions. [2022-07-14 14:02:44,480 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 98 transitions. Word has length 3 [2022-07-14 14:02:44,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:44,481 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 98 transitions. [2022-07-14 14:02:44,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 14:02:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 98 transitions. [2022-07-14 14:02:44,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:02:44,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:44,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:02:44,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:02:44,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:02:44,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:44,482 INFO L85 PathProgramCache]: Analyzing trace with hash 322598, now seen corresponding path program 1 times [2022-07-14 14:02:44,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:44,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117670297] [2022-07-14 14:02:44,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:44,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:02:44,502 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:02:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:02:44,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:02:44,522 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 14:02:44,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-07-14 14:02:44,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-07-14 14:02:44,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-07-14 14:02:44,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-07-14 14:02:44,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-07-14 14:02:44,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-07-14 14:02:44,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-07-14 14:02:44,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-07-14 14:02:44,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2022-07-14 14:02:44,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-07-14 14:02:44,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-07-14 14:02:44,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-07-14 14:02:44,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-07-14 14:02:44,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:02:44,527 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-14 14:02:44,542 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-14 14:02:44,543 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 14:02:44,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:02:44 BasicIcfg [2022-07-14 14:02:44,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 14:02:44,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:02:44,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:02:44,557 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:02:44,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:02:41" (3/4) ... [2022-07-14 14:02:44,559 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-14 14:02:44,587 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:02:44,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:02:44,588 INFO L158 Benchmark]: Toolchain (without parser) took 4063.59ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 56.3MB in the beginning and 73.0MB in the end (delta: -16.7MB). Peak memory consumption was 707.6kB. Max. memory is 16.1GB. [2022-07-14 14:02:44,588 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 74.3MB in the beginning and 74.3MB in the end (delta: 46.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:02:44,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.58ms. Allocated memory is still 94.4MB. Free memory was 56.1MB in the beginning and 53.7MB in the end (delta: 2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 14:02:44,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.80ms. Allocated memory is still 94.4MB. Free memory was 53.7MB in the beginning and 51.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:02:44,591 INFO L158 Benchmark]: Boogie Preprocessor took 29.41ms. Allocated memory is still 94.4MB. Free memory was 51.4MB in the beginning and 50.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:02:44,592 INFO L158 Benchmark]: RCFGBuilder took 278.55ms. Allocated memory is still 94.4MB. Free memory was 50.1MB in the beginning and 38.0MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 14:02:44,592 INFO L158 Benchmark]: TraceAbstraction took 3217.23ms. Allocated memory is still 113.2MB. Free memory was 89.7MB in the beginning and 75.1MB in the end (delta: 14.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-07-14 14:02:44,592 INFO L158 Benchmark]: Witness Printer took 30.55ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:02:44,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 74.3MB in the beginning and 74.3MB in the end (delta: 46.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.58ms. Allocated memory is still 94.4MB. Free memory was 56.1MB in the beginning and 53.7MB in the end (delta: 2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.80ms. Allocated memory is still 94.4MB. Free memory was 53.7MB in the beginning and 51.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.41ms. Allocated memory is still 94.4MB. Free memory was 51.4MB in the beginning and 50.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 278.55ms. Allocated memory is still 94.4MB. Free memory was 50.1MB in the beginning and 38.0MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3217.23ms. Allocated memory is still 113.2MB. Free memory was 89.7MB in the beginning and 75.1MB in the end (delta: 14.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 30.55ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 87 PlacesBefore, 25 PlacesAfterwards, 86 TransitionsBefore, 22 TransitionsAfterwards, 1170 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 100 TotalNumberOfCompositions, 2022 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1513, positive: 1436, positive conditional: 0, positive unconditional: 1436, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 881, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 881, positive: 841, positive conditional: 0, positive unconditional: 841, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 4, unknown conditional: 0, unknown unconditional: 4] ], Cache Queries: [ total: 1513, positive: 586, positive conditional: 0, positive unconditional: 586, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 881, unknown conditional: 0, unknown unconditional: 881] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 944]: integer overflow possible integer overflow possible We found a FailurePath: [L928] 0 int glob; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L937] 0 int i = __VERIFIER_nondet_int(); [L938] 0 pthread_t id; [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=2147483647, id={5:0}, m={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L941] COND TRUE 0 \read(i) [L944] 0 i++ VAL [arg={0:0}, glob=0, i=2147483647, i++=2147483647, id={5:0}, m={4:0}] - UnprovableResult [Line: 944]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-14 14:02:44,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)