./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr-overflow.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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_36-trylock_nr-overflow.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 0d8b66b98fca524b0a343d5dd747c13b18a33bf448a3a25d7d1a1a10b8f7934d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 06:08:44,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:08:44,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:08:44,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:08:44,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:08:44,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:08:44,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:08:44,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:08:44,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:08:44,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:08:44,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:08:44,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:08:44,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:08:44,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:08:44,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:08:44,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:08:44,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:08:44,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:08:44,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:08:44,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:08:44,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:08:44,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:08:44,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:08:44,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:08:44,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:08:44,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:08:44,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:08:44,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:08:44,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:08:44,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:08:44,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:08:44,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:08:44,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:08:44,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:08:44,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:08:44,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:08:44,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:08:44,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:08:44,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:08:44,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:08:44,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:08:44,856 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:08:44,895 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:08:44,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:08:44,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:08:44,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:08:44,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:08:44,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:08:44,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:08:44,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:08:44,898 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:08:44,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:08:44,899 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:08:44,899 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:08:44,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:08:44,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:08:44,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:08:44,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:08:44,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:08:44,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:08:44,901 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:08:44,901 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:08:44,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:08:44,901 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:08:44,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:08:44,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:08:44,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:08:44,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:08:44,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:08:44,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:08:44,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:08:44,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:08:44,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:08:44,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:08:44,904 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:08:44,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:08:44,904 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:08:44,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:08:44,905 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:08:44,905 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d8b66b98fca524b0a343d5dd747c13b18a33bf448a3a25d7d1a1a10b8f7934d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:08:45,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:08:45,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:08:45,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:08:45,232 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:08:45,232 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:08:45,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr-overflow.i [2023-09-01 06:08:46,446 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:08:46,808 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:08:46,808 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr-overflow.i [2023-09-01 06:08:46,835 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95579e729/000969ebe4b04766bbd7010818d8922f/FLAG07623a6b4 [2023-09-01 06:08:46,853 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95579e729/000969ebe4b04766bbd7010818d8922f [2023-09-01 06:08:46,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:08:46,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:08:46,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:08:46,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:08:46,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:08:46,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:08:46" (1/1) ... [2023-09-01 06:08:46,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363a34e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:46, skipping insertion in model container [2023-09-01 06:08:46,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:08:46" (1/1) ... [2023-09-01 06:08:46,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:08:46,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:08:47,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:08:47,775 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:08:47,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:08:47,948 WARN L667 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 06:08:47,949 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 06:08:47,949 WARN L667 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 06:08:47,949 WARN L667 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 06:08:47,955 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:08:47,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47 WrapperNode [2023-09-01 06:08:47,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:08:47,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:08:47,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:08:47,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:08:47,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,093 INFO L138 Inliner]: procedures = 524, calls = 67, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 125 [2023-09-01 06:08:48,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:08:48,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:08:48,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:08:48,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:08:48,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,165 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:08:48,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:08:48,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:08:48,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:08:48,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (1/1) ... [2023-09-01 06:08:48,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:08:48,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:08:48,227 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) [2023-09-01 06:08:48,272 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 [2023-09-01 06:08:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-09-01 06:08:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-09-01 06:08:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-09-01 06:08:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-09-01 06:08:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-09-01 06:08:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-09-01 06:08:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:08:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:08:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:08:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:08:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:08:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:08:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-09-01 06:08:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:08:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-09-01 06:08:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-09-01 06:08:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:08:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:08:48,320 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 06:08:48,821 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:08:48,823 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:08:49,119 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:08:49,127 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:08:49,127 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-09-01 06:08:49,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:49 BoogieIcfgContainer [2023-09-01 06:08:49,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:08:49,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:08:49,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:08:49,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:08:49,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:08:46" (1/3) ... [2023-09-01 06:08:49,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c96304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:08:49, skipping insertion in model container [2023-09-01 06:08:49,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:47" (2/3) ... [2023-09-01 06:08:49,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c96304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:08:49, skipping insertion in model container [2023-09-01 06:08:49,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:49" (3/3) ... [2023-09-01 06:08:49,137 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr-overflow.i [2023-09-01 06:08:49,145 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:08:49,155 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:08:49,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-09-01 06:08:49,156 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:08:49,287 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 06:08:49,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 218 places, 242 transitions, 500 flow [2023-09-01 06:08:49,447 INFO L130 PetriNetUnfolder]: 31/240 cut-off events. [2023-09-01 06:08:49,447 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 06:08:49,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 31/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 537 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 150. Up to 5 conditions per place. [2023-09-01 06:08:49,456 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 242 transitions, 500 flow [2023-09-01 06:08:49,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 219 transitions, 447 flow [2023-09-01 06:08:49,471 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:08:49,484 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 219 transitions, 447 flow [2023-09-01 06:08:49,492 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 219 transitions, 447 flow [2023-09-01 06:08:49,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 219 transitions, 447 flow [2023-09-01 06:08:49,567 INFO L130 PetriNetUnfolder]: 28/219 cut-off events. [2023-09-01 06:08:49,567 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:08:49,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 219 events. 28/219 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 495 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 150. Up to 5 conditions per place. [2023-09-01 06:08:49,579 INFO L119 LiptonReduction]: Number of co-enabled transitions 13862 [2023-09-01 06:09:07,595 INFO L134 LiptonReduction]: Checked pairs total: 15107 [2023-09-01 06:09:07,597 INFO L136 LiptonReduction]: Total number of compositions: 252 [2023-09-01 06:09:07,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:09:07,624 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;@29ea161b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:09:07,624 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 06:09:07,626 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 06:09:07,626 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:09:07,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:09:07,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 06:09:07,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-09-01 06:09:07,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:09:07,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1012, now seen corresponding path program 1 times [2023-09-01 06:09:07,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:09:07,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110382973] [2023-09-01 06:09:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:09:07,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:09:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:09:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:09:07,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:09:07,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110382973] [2023-09-01 06:09:07,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110382973] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:09:07,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:09:07,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 06:09:07,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513019417] [2023-09-01 06:09:07,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:09:07,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 06:09:07,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:09:07,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 06:09:07,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 06:09:07,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 494 [2023-09-01 06:09:07,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 50 transitions, 109 flow. Second operand has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 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) [2023-09-01 06:09:07,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:09:07,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 494 [2023-09-01 06:09:07,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:09:08,119 INFO L130 PetriNetUnfolder]: 328/596 cut-off events. [2023-09-01 06:09:08,120 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-09-01 06:09:08,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 596 events. 328/596 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2807 event pairs, 234 based on Foata normal form. 79/340 useless extension candidates. Maximal degree in co-relation 1056. Up to 513 conditions per place. [2023-09-01 06:09:08,126 INFO L137 encePairwiseOnDemand]: 482/494 looper letters, 26 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2023-09-01 06:09:08,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 121 flow [2023-09-01 06:09:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 06:09:08,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 06:09:08,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 460 transitions. [2023-09-01 06:09:08,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46558704453441296 [2023-09-01 06:09:08,148 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 460 transitions. [2023-09-01 06:09:08,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 460 transitions. [2023-09-01 06:09:08,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:09:08,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 460 transitions. [2023-09-01 06:09:08,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 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) [2023-09-01 06:09:08,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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) [2023-09-01 06:09:08,166 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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) [2023-09-01 06:09:08,168 INFO L175 Difference]: Start difference. First operand has 39 places, 50 transitions, 109 flow. Second operand 2 states and 460 transitions. [2023-09-01 06:09:08,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 121 flow [2023-09-01 06:09:08,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 06:09:08,175 INFO L231 Difference]: Finished difference. Result has 31 places, 30 transitions, 64 flow [2023-09-01 06:09:08,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=64, PETRI_PLACES=31, PETRI_TRANSITIONS=30} [2023-09-01 06:09:08,182 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -8 predicate places. [2023-09-01 06:09:08,182 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 30 transitions, 64 flow [2023-09-01 06:09:08,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 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) [2023-09-01 06:09:08,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:09:08,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 06:09:08,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:09:08,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-09-01 06:09:08,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:09:08,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1011, now seen corresponding path program 1 times [2023-09-01 06:09:08,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:09:08,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433945613] [2023-09-01 06:09:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:09:08,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:09:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 06:09:08,297 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 06:09:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 06:09:08,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 06:09:08,352 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 06:09:08,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 06:09:08,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 06:09:08,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 06:09:08,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 06:09:08,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 06:09:08,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 06:09:08,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 06:09:08,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 06:09:08,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2023-09-01 06:09:08,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2023-09-01 06:09:08,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 06:09:08,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 06:09:08,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 06:09:08,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 06:09:08,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 06:09:08,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 06:09:08,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 06:09:08,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 06:09:08,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 06:09:08,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 06:09:08,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:09:08,368 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-09-01 06:09:08,374 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:09:08,374 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:09:08,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:09:08 BasicIcfg [2023-09-01 06:09:08,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:09:08,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:09:08,405 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:09:08,406 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:09:08,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:49" (3/4) ... [2023-09-01 06:09:08,408 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-09-01 06:09:08,442 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:09:08,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:09:08,443 INFO L158 Benchmark]: Toolchain (without parser) took 21586.01ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 62.5MB in the beginning and 40.4MB in the end (delta: 22.1MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2023-09-01 06:09:08,444 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:09:08,444 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1095.08ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 47.5MB in the end (delta: 14.7MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2023-09-01 06:09:08,444 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.15ms. Allocated memory is still 88.1MB. Free memory was 47.1MB in the beginning and 44.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:09:08,446 INFO L158 Benchmark]: Boogie Preprocessor took 78.69ms. Allocated memory is still 88.1MB. Free memory was 44.1MB in the beginning and 40.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 06:09:08,449 INFO L158 Benchmark]: RCFGBuilder took 954.41ms. Allocated memory is still 88.1MB. Free memory was 40.8MB in the beginning and 39.1MB in the end (delta: 1.7MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-09-01 06:09:08,450 INFO L158 Benchmark]: TraceAbstraction took 19273.19ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 38.3MB in the beginning and 41.5MB in the end (delta: -3.2MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2023-09-01 06:09:08,450 INFO L158 Benchmark]: Witness Printer took 37.31ms. Allocated memory is still 130.0MB. Free memory was 41.5MB in the beginning and 40.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:09:08,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1095.08ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 47.5MB in the end (delta: 14.7MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.15ms. Allocated memory is still 88.1MB. Free memory was 47.1MB in the beginning and 44.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.69ms. Allocated memory is still 88.1MB. Free memory was 44.1MB in the beginning and 40.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 954.41ms. Allocated memory is still 88.1MB. Free memory was 40.8MB in the beginning and 39.1MB in the end (delta: 1.7MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * TraceAbstraction took 19273.19ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 38.3MB in the beginning and 41.5MB in the end (delta: -3.2MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * Witness Printer took 37.31ms. Allocated memory is still 130.0MB. Free memory was 41.5MB in the beginning and 40.4MB in the end (delta: 1.1MB). 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: 18.1s, 198 PlacesBefore, 39 PlacesAfterwards, 219 TransitionsBefore, 50 TransitionsAfterwards, 13862 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 151 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 10 ChoiceCompositions, 252 TotalNumberOfCompositions, 15107 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13219, independent: 13143, independent conditional: 0, independent unconditional: 13143, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7984, independent: 7956, independent conditional: 0, independent unconditional: 7956, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13219, independent: 5187, independent conditional: 0, independent unconditional: 5187, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 7984, unknown conditional: 0, unknown unconditional: 7984] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1839]: integer overflow possible integer overflow possible We found a FailurePath: [L1797] pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] long counter; [L1799] time_t end_time; [L1836] int status; [L1837] pthread_t counter_thread_id; [L1838] pthread_t monitor_thread_id; [L1839] time (((void *)0)) + 60 VAL [\old(argc)=2147483589, argc=2147483589, argv={2147483590:2147483591}, argv={2147483590:2147483591}, counter=0, counter_thread_id={27:0}, end_time=0, monitor_thread_id={26:0}, mutex={25:0}, time (((void *)0))=2147483588] - UnprovableResult [Line: 1830]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1807]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1807]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1840]: 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: 1843]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 312 locations, 20 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: 19.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 18.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 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! [2023-09-01 06:09:08,482 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)