./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-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 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:33:13,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:33:14,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:33:14,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:33:14,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:33:14,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:33:14,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:33:14,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:33:14,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:33:14,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:33:14,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:33:14,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:33:14,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:33:14,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:33:14,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:33:14,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:33:14,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:33:14,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:33:14,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:33:14,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:33:14,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:33:14,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:33:14,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:33:14,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:33:14,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:33:14,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:33:14,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:33:14,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:33:14,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:33:14,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:33:14,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:33:14,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:33:14,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:33:14,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:33:14,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:33:14,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:33:14,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:33:14,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:33:14,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:33:14,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:33:14,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:33:14,080 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:33:14,099 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:33:14,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:33:14,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:33:14,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:33:14,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:33:14,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:33:14,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:33:14,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:33:14,102 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:33:14,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:33:14,102 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:33:14,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:33:14,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:33:14,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:33:14,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:33:14,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:33:14,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:33:14,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:33:14,104 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:33:14,104 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:33:14,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:33:14,104 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:33:14,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:33:14,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:33:14,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:33:14,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:33:14,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:33:14,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:33:14,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:33:14,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:33:14,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:33:14,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:33:14,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:33:14,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:33:14,107 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:33:14,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:33:14,107 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:33:14,107 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:33:14,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:33:14,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:33:14,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:33:14,387 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:33:14,388 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:33:14,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i [2023-08-30 09:33:15,345 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:33:15,541 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:33:15,541 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i [2023-08-30 09:33:15,555 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100c997c1/2961a63a3a2a483c8727f43e2b8490b2/FLAG562bb5a67 [2023-08-30 09:33:15,566 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100c997c1/2961a63a3a2a483c8727f43e2b8490b2 [2023-08-30 09:33:15,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:33:15,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:33:15,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:33:15,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:33:15,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:33:15,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:33:15" (1/1) ... [2023-08-30 09:33:15,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc2f5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:15, skipping insertion in model container [2023-08-30 09:33:15,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:33:15" (1/1) ... [2023-08-30 09:33:15,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:33:15,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:33:15,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:33:15,948 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:33:15,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:33:16,066 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:33:16,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16 WrapperNode [2023-08-30 09:33:16,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:33:16,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:33:16,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:33:16,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:33:16,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,114 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-08-30 09:33:16,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:33:16,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:33:16,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:33:16,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:33:16,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:33:16,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:33:16,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:33:16,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:33:16,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (1/1) ... [2023-08-30 09:33:16,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:33:16,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:33:16,165 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) [2023-08-30 09:33:16,167 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 [2023-08-30 09:33:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:33:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:33:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:33:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:33:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:33:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 09:33:16,191 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 09:33:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:33:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:33:16,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:33:16,193 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:33:16,306 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:33:16,308 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:33:16,452 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:33:16,458 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:33:16,458 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 09:33:16,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:33:16 BoogieIcfgContainer [2023-08-30 09:33:16,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:33:16,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:33:16,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:33:16,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:33:16,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:33:15" (1/3) ... [2023-08-30 09:33:16,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bef861f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:33:16, skipping insertion in model container [2023-08-30 09:33:16,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:16" (2/3) ... [2023-08-30 09:33:16,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bef861f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:33:16, skipping insertion in model container [2023-08-30 09:33:16,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:33:16" (3/3) ... [2023-08-30 09:33:16,466 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17a-ps_add1_nr.i [2023-08-30 09:33:16,473 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:33:16,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:33:16,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-30 09:33:16,481 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:33:16,517 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 09:33:16,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 80 transitions, 165 flow [2023-08-30 09:33:16,603 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2023-08-30 09:33:16,603 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:33:16,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 3/79 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. 0/66 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-08-30 09:33:16,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 80 transitions, 165 flow [2023-08-30 09:33:16,610 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 79 transitions, 161 flow [2023-08-30 09:33:16,613 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:33:16,622 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 79 transitions, 161 flow [2023-08-30 09:33:16,627 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 79 transitions, 161 flow [2023-08-30 09:33:16,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 79 transitions, 161 flow [2023-08-30 09:33:16,652 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2023-08-30 09:33:16,653 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:33:16,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 3/79 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. 0/66 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-08-30 09:33:16,654 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-30 09:33:18,565 INFO L134 LiptonReduction]: Checked pairs total: 2189 [2023-08-30 09:33:18,566 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-08-30 09:33:18,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:33:18,579 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@148fa24, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:33:18,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-30 09:33:18,580 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 09:33:18,583 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:33:18,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:33:18,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:33:18,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:33:18,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:33:18,587 INFO L85 PathProgramCache]: Analyzing trace with hash 299139, now seen corresponding path program 1 times [2023-08-30 09:33:18,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:33:18,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986544198] [2023-08-30 09:33:18,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:33:18,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:33:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:33:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:33:18,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:33:18,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986544198] [2023-08-30 09:33:18,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986544198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:33:18,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:33:18,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:33:18,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563024589] [2023-08-30 09:33:18,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:33:18,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:33:18,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:33:18,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:33:18,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:33:18,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 170 [2023-08-30 09:33:18,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2023-08-30 09:33:18,820 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:33:18,820 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 170 [2023-08-30 09:33:18,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:33:18,860 INFO L130 PetriNetUnfolder]: 61/132 cut-off events. [2023-08-30 09:33:18,861 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:33:18,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 132 events. 61/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 503 event pairs, 54 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 260. Up to 132 conditions per place. [2023-08-30 09:33:18,863 INFO L137 encePairwiseOnDemand]: 166/170 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-30 09:33:18,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 75 flow [2023-08-30 09:33:18,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:33:18,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:33:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2023-08-30 09:33:18,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45294117647058824 [2023-08-30 09:33:18,875 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2023-08-30 09:33:18,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2023-08-30 09:33:18,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:33:18,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2023-08-30 09:33:18,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2023-08-30 09:33:18,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2023-08-30 09:33:18,884 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2023-08-30 09:33:18,886 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 45 flow. Second operand 3 states and 231 transitions. [2023-08-30 09:33:18,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 75 flow [2023-08-30 09:33:18,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:33:18,889 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 40 flow [2023-08-30 09:33:18,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-08-30 09:33:18,893 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2023-08-30 09:33:18,893 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 40 flow [2023-08-30 09:33:18,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2023-08-30 09:33:18,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:33:18,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:33:18,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:33:18,894 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:33:18,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:33:18,895 INFO L85 PathProgramCache]: Analyzing trace with hash 299141, now seen corresponding path program 1 times [2023-08-30 09:33:18,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:33:18,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543937671] [2023-08-30 09:33:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:33:18,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:33:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 09:33:18,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 09:33:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 09:33:18,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 09:33:18,931 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 09:33:18,932 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-08-30 09:33:18,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-08-30 09:33:18,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-08-30 09:33:18,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-08-30 09:33:18,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-08-30 09:33:18,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-08-30 09:33:18,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-08-30 09:33:18,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-08-30 09:33:18,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-08-30 09:33:18,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-08-30 09:33:18,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-08-30 09:33:18,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-08-30 09:33:18,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-08-30 09:33:18,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:33:18,936 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 09:33:18,941 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:33:18,941 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:33:18,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:33:18 BasicIcfg [2023-08-30 09:33:18,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:33:18,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:33:18,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:33:18,956 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:33:18,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:33:16" (3/4) ... [2023-08-30 09:33:18,957 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 09:33:18,983 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:33:18,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:33:18,984 INFO L158 Benchmark]: Toolchain (without parser) took 3413.67ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 66.7MB in the beginning and 41.3MB in the end (delta: 25.4MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2023-08-30 09:33:18,984 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 71.3MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:33:18,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.09ms. Allocated memory is still 90.2MB. Free memory was 66.7MB in the beginning and 62.8MB in the end (delta: 3.9MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-08-30 09:33:18,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.10ms. Allocated memory is still 90.2MB. Free memory was 62.8MB in the beginning and 60.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:33:18,985 INFO L158 Benchmark]: Boogie Preprocessor took 18.11ms. Allocated memory is still 90.2MB. Free memory was 60.7MB in the beginning and 59.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:33:18,985 INFO L158 Benchmark]: RCFGBuilder took 325.83ms. Allocated memory is still 90.2MB. Free memory was 59.4MB in the beginning and 46.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 09:33:18,986 INFO L158 Benchmark]: TraceAbstraction took 2493.67ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 45.4MB in the beginning and 43.3MB in the end (delta: 2.1MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2023-08-30 09:33:18,986 INFO L158 Benchmark]: Witness Printer took 27.45ms. Allocated memory is still 111.1MB. Free memory was 43.3MB in the beginning and 41.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:33:18,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 71.3MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 496.09ms. Allocated memory is still 90.2MB. Free memory was 66.7MB in the beginning and 62.8MB in the end (delta: 3.9MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.10ms. Allocated memory is still 90.2MB. Free memory was 62.8MB in the beginning and 60.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.11ms. Allocated memory is still 90.2MB. Free memory was 60.7MB in the beginning and 59.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.83ms. Allocated memory is still 90.2MB. Free memory was 59.4MB in the beginning and 46.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2493.67ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 45.4MB in the beginning and 43.3MB in the end (delta: 2.1MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Witness Printer took 27.45ms. Allocated memory is still 111.1MB. Free memory was 43.3MB in the beginning and 41.3MB 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: 1.9s, 80 PlacesBefore, 24 PlacesAfterwards, 79 TransitionsBefore, 21 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 90 TotalNumberOfCompositions, 2189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1281, independent: 1191, independent conditional: 0, independent unconditional: 1191, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 668, independent: 643, independent conditional: 0, independent unconditional: 643, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1281, independent: 548, independent conditional: 0, independent unconditional: 548, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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={2:0}, m={1:0}, 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={2:0}, m={1:0}] - 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, 93 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2023-08-30 09:33:19,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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)