./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.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 bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:21:41,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:21:41,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:21:41,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:21:41,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:21:41,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:21:41,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:21:41,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:21:41,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:21:41,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:21:41,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:21:41,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:21:41,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:21:41,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:21:41,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:21:41,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:21:41,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:21:41,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:21:41,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:21:41,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:21:41,793 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:21:41,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:21:41,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:21:41,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:21:41,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:21:41,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:21:41,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:21:41,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:21:41,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:21:41,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:21:41,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:21:41,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:21:41,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:21:41,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:21:41,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:21:41,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:21:41,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:21:41,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:21:41,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:21:41,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:21:41,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:21:41,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:21:41,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:21:41,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:21:41,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:21:41,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:21:41,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:21:41,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:21:41,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:21:41,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:21:41,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:21:41,833 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:21:41,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:21:41,833 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:21:41,834 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:21:41,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:21:41,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:21:41,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:21:41,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:21:41,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:21:41,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:21:41,834 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:21:41,835 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:21:41,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:21:41,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:21:41,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:21:41,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:21:41,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:21:41,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:21:41,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:21:41,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:21:41,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:21:41,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:21:41,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:21:41,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:21:41,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:21:41,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2022-07-13 02:21:42,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:21:42,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:21:42,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:21:42,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:21:42,071 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:21:42,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-07-13 02:21:42,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12dd5f09a/3c20873f427d429e9871dddb920a95a0/FLAG22b759b43 [2022-07-13 02:21:42,534 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:21:42,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-07-13 02:21:42,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12dd5f09a/3c20873f427d429e9871dddb920a95a0/FLAG22b759b43 [2022-07-13 02:21:42,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12dd5f09a/3c20873f427d429e9871dddb920a95a0 [2022-07-13 02:21:42,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:21:42,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:21:42,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:21:42,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:21:42,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:21:42,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:21:42" (1/1) ... [2022-07-13 02:21:42,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e648da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:42, skipping insertion in model container [2022-07-13 02:21:42,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:21:42" (1/1) ... [2022-07-13 02:21:42,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:21:42,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:21:43,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:21:43,074 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:21:43,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:21:43,211 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:21:43,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43 WrapperNode [2022-07-13 02:21:43,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:21:43,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:21:43,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:21:43,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:21:43,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (1/1) ... [2022-07-13 02:21:43,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (1/1) ... [2022-07-13 02:21:43,276 INFO L137 Inliner]: procedures = 524, calls = 61, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 119 [2022-07-13 02:21:43,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:21:43,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:21:43,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:21:43,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:21:43,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (1/1) ... [2022-07-13 02:21:43,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (1/1) ... [2022-07-13 02:21:43,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (1/1) ... [2022-07-13 02:21:43,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (1/1) ... [2022-07-13 02:21:43,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (1/1) ... [2022-07-13 02:21:43,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (1/1) ... [2022-07-13 02:21:43,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (1/1) ... [2022-07-13 02:21:43,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:21:43,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:21:43,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:21:43,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:21:43,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (1/1) ... [2022-07-13 02:21:43,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:21:43,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:21:43,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 02:21:43,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 02:21:43,361 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-07-13 02:21:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-07-13 02:21:43,361 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-07-13 02:21:43,361 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-07-13 02:21:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-07-13 02:21:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-07-13 02:21:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:21:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:21:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:21:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:21:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:21:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:21:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:21:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-07-13 02:21:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-07-13 02:21:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:21:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:21:43,378 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 02:21:43,653 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:21:43,654 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:21:43,875 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:21:43,881 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:21:43,881 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2022-07-13 02:21:43,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:21:43 BoogieIcfgContainer [2022-07-13 02:21:43,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:21:43,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:21:43,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:21:43,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:21:43,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:21:42" (1/3) ... [2022-07-13 02:21:43,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6779f6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:21:43, skipping insertion in model container [2022-07-13 02:21:43,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:21:43" (2/3) ... [2022-07-13 02:21:43,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6779f6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:21:43, skipping insertion in model container [2022-07-13 02:21:43,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:21:43" (3/3) ... [2022-07-13 02:21:43,891 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2022-07-13 02:21:43,894 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:21:43,900 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:21:43,901 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-13 02:21:43,901 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:21:43,978 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-13 02:21:44,014 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:21:44,025 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 232 transitions, 480 flow [2022-07-13 02:21:44,031 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 232 transitions, 480 flow [2022-07-13 02:21:44,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 208 places, 232 transitions, 480 flow [2022-07-13 02:21:44,103 INFO L129 PetriNetUnfolder]: 31/230 cut-off events. [2022-07-13 02:21:44,103 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-13 02:21:44,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 230 events. 31/230 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 456 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 138. Up to 5 conditions per place. [2022-07-13 02:21:44,113 INFO L116 LiptonReduction]: Number of co-enabled transitions 11614 [2022-07-13 02:21:59,085 INFO L131 LiptonReduction]: Checked pairs total: 15976 [2022-07-13 02:21:59,085 INFO L133 LiptonReduction]: Total number of compositions: 265 [2022-07-13 02:21:59,092 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 60 transitions, 136 flow [2022-07-13 02:21:59,148 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 535 states, 509 states have (on average 4.18664047151277) internal successors, (2131), 534 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:21:59,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:21:59,168 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@586d768, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4efd030f [2022-07-13 02:21:59,168 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-07-13 02:21:59,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 535 states, 509 states have (on average 4.18664047151277) internal successors, (2131), 534 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:21:59,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-07-13 02:21:59,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:21:59,175 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-07-13 02:21:59,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:21:59,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:21:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash 995, now seen corresponding path program 1 times [2022-07-13 02:21:59,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:21:59,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968839957] [2022-07-13 02:21:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:21:59,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:21:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:21:59,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:21:59,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:21:59,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968839957] [2022-07-13 02:21:59,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968839957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:21:59,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:21:59,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-07-13 02:21:59,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506863099] [2022-07-13 02:21:59,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:21:59,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 02:21:59,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:21:59,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 02:21:59,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:21:59,366 INFO L87 Difference]: Start difference. First operand has 535 states, 509 states have (on average 4.18664047151277) internal successors, (2131), 534 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:21:59,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:21:59,445 INFO L93 Difference]: Finished difference Result 402 states and 1104 transitions. [2022-07-13 02:21:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 02:21:59,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-07-13 02:21:59,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:21:59,462 INFO L225 Difference]: With dead ends: 402 [2022-07-13 02:21:59,462 INFO L226 Difference]: Without dead ends: 396 [2022-07-13 02:21:59,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:21:59,465 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:21:59,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:21:59,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-07-13 02:21:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2022-07-13 02:21:59,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 335 states have (on average 3.253731343283582) internal successors, (1090), 395 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:21:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 1090 transitions. [2022-07-13 02:21:59,520 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 1090 transitions. Word has length 1 [2022-07-13 02:21:59,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:21:59,521 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 1090 transitions. [2022-07-13 02:21:59,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:21:59,521 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 1090 transitions. [2022-07-13 02:21:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-07-13 02:21:59,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:21:59,522 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-07-13 02:21:59,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:21:59,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:21:59,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:21:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash 997, now seen corresponding path program 1 times [2022-07-13 02:21:59,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:21:59,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504625380] [2022-07-13 02:21:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:21:59,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:21:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:21:59,610 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:21:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:21:59,674 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:21:59,675 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:21:59,676 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-07-13 02:21:59,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-07-13 02:21:59,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-07-13 02:21:59,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-07-13 02:21:59,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-07-13 02:21:59,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-07-13 02:21:59,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-07-13 02:21:59,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-07-13 02:21:59,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-07-13 02:21:59,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-07-13 02:21:59,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-07-13 02:21:59,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-07-13 02:21:59,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-07-13 02:21:59,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-07-13 02:21:59,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-07-13 02:21:59,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-07-13 02:21:59,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-07-13 02:21:59,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-07-13 02:21:59,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-07-13 02:21:59,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-07-13 02:21:59,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:21:59,693 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 02:21:59,697 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 02:21:59,698 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:21:59,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:21:59 BasicIcfg [2022-07-13 02:21:59,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:21:59,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:21:59,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:21:59,722 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:21:59,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:21:43" (3/4) ... [2022-07-13 02:21:59,723 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 02:21:59,753 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 02:21:59,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:21:59,758 INFO L158 Benchmark]: Toolchain (without parser) took 17185.44ms. Allocated memory was 94.4MB in the beginning and 257.9MB in the end (delta: 163.6MB). Free memory was 51.3MB in the beginning and 146.6MB in the end (delta: -95.3MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2022-07-13 02:21:59,762 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 71.1MB in the beginning and 71.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:21:59,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 639.23ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 51.1MB in the beginning and 55.1MB in the end (delta: -3.9MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2022-07-13 02:21:59,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.59ms. Allocated memory is still 136.3MB. Free memory was 55.1MB in the beginning and 51.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 02:21:59,766 INFO L158 Benchmark]: Boogie Preprocessor took 27.24ms. Allocated memory is still 136.3MB. Free memory was 51.7MB in the beginning and 48.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:21:59,767 INFO L158 Benchmark]: RCFGBuilder took 578.20ms. Allocated memory is still 136.3MB. Free memory was 48.8MB in the beginning and 98.8MB in the end (delta: -50.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-13 02:21:59,767 INFO L158 Benchmark]: TraceAbstraction took 15834.50ms. Allocated memory was 136.3MB in the beginning and 257.9MB in the end (delta: 121.6MB). Free memory was 97.9MB in the beginning and 148.7MB in the end (delta: -50.8MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. [2022-07-13 02:21:59,767 INFO L158 Benchmark]: Witness Printer took 34.44ms. Allocated memory is still 257.9MB. Free memory was 148.7MB in the beginning and 146.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:21:59,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 71.1MB in the beginning and 71.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 639.23ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 51.1MB in the beginning and 55.1MB in the end (delta: -3.9MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.59ms. Allocated memory is still 136.3MB. Free memory was 55.1MB in the beginning and 51.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.24ms. Allocated memory is still 136.3MB. Free memory was 51.7MB in the beginning and 48.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.20ms. Allocated memory is still 136.3MB. Free memory was 48.8MB in the beginning and 98.8MB in the end (delta: -50.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15834.50ms. Allocated memory was 136.3MB in the beginning and 257.9MB in the end (delta: 121.6MB). Free memory was 97.9MB in the beginning and 148.7MB in the end (delta: -50.8MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. * Witness Printer took 34.44ms. Allocated memory is still 257.9MB. Free memory was 148.7MB in the beginning and 146.6MB 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: 15.1s, 208 PlacesBefore, 47 PlacesAfterwards, 232 TransitionsBefore, 60 TransitionsAfterwards, 11614 CoEnabledTransitionPairs, 7 FixpointIterations, 78 TrivialSequentialCompositions, 138 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 27 ConcurrentYvCompositions, 11 ChoiceCompositions, 265 TotalNumberOfCompositions, 15976 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12687, positive: 12545, positive conditional: 0, positive unconditional: 12545, negative: 142, negative conditional: 0, negative unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8354, positive: 8310, positive conditional: 0, positive unconditional: 8310, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8354, positive: 8302, positive conditional: 0, positive unconditional: 8302, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1063, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 990, unknown conditional: 0, unknown unconditional: 990] ], Cache Queries: [ total: 12687, positive: 4235, positive conditional: 0, positive unconditional: 4235, negative: 98, negative conditional: 0, negative unconditional: 98, unknown: 8354, unknown conditional: 0, unknown unconditional: 8354] , Statistics on independence cache: Total cache size (in pairs): 266, Positive cache size: 250, Positive conditional cache size: 0, Positive unconditional cache size: 250, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 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)=2147483591, argc=2147483591, argv={2147483589:2147483590}, argv={2147483589:2147483590}, counter=0, counter_thread_id={29:0}, end_time=0, monitor_thread_id={28:0}, mutex={27:0}, 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: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 294 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 4 mSDtfsCounter, 30 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=535occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, 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! [2022-07-13 02:21:59,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)