./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/13-privatized_67-pthread_cond_wait_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 00:06:47,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:06:47,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:06:47,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:06:47,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:06:47,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:06:47,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:06:47,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:06:47,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:06:47,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:06:47,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:06:47,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:06:47,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:06:47,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:06:47,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:06:47,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:06:47,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:06:47,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:06:47,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:06:47,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:06:47,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:06:47,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:06:47,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:06:47,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:06:47,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:06:47,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:06:47,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:06:47,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:06:47,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:06:47,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:06:47,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:06:47,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:06:47,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:06:47,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:06:47,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:06:47,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:06:47,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:06:47,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:06:47,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:06:47,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:06:47,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:06:47,138 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:06:47,187 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:06:47,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:06:47,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:06:47,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:06:47,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:06:47,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:06:47,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:06:47,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:06:47,191 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:06:47,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:06:47,192 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:06:47,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:06:47,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:06:47,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:06:47,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:06:47,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:06:47,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:06:47,194 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:06:47,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:06:47,194 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:06:47,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:06:47,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:06:47,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:06:47,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:06:47,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:06:47,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:06:47,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:06:47,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:06:47,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:06:47,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:06:47,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:06:47,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:06:47,197 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:06:47,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:06:47,197 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:06:47,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:06:47,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:06:47,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:06:47,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:06:47,555 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:06:47,556 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:06:47,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2023-08-31 00:06:48,802 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:06:49,132 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:06:49,133 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2023-08-31 00:06:49,151 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca6aec7a/91c8323bbd8042db9ee5396894f07855/FLAG1b76e346d [2023-08-31 00:06:49,175 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca6aec7a/91c8323bbd8042db9ee5396894f07855 [2023-08-31 00:06:49,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:06:49,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:06:49,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:06:49,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:06:49,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:06:49,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f8dee6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49, skipping insertion in model container [2023-08-31 00:06:49,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:06:49,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:06:49,413 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2023-08-31 00:06:49,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:06:49,760 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:06:49,770 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2023-08-31 00:06:49,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:06:49,876 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 00:06:49,882 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:06:49,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49 WrapperNode [2023-08-31 00:06:49,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:06:49,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:06:49,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:06:49,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:06:49,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,936 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2023-08-31 00:06:49,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:06:49,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:06:49,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:06:49,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:06:49,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,969 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:06:49,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:06:49,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:06:49,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:06:49,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (1/1) ... [2023-08-31 00:06:49,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:06:50,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:06:50,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 00:06:50,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 00:06:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-31 00:06:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-08-31 00:06:50,043 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-08-31 00:06:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-08-31 00:06:50,043 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-08-31 00:06:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:06:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:06:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 00:06:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:06:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:06:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:06:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:06:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:06:50,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:06:50,047 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 00:06:50,372 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:06:50,380 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:06:50,603 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:06:50,609 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:06:50,609 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:06:50,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:06:50 BoogieIcfgContainer [2023-08-31 00:06:50,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:06:50,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:06:50,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:06:50,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:06:50,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:06:49" (1/3) ... [2023-08-31 00:06:50,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3501af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:06:50, skipping insertion in model container [2023-08-31 00:06:50,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:49" (2/3) ... [2023-08-31 00:06:50,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3501af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:06:50, skipping insertion in model container [2023-08-31 00:06:50,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:06:50" (3/3) ... [2023-08-31 00:06:50,621 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2023-08-31 00:06:50,629 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:06:50,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:06:50,638 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:06:50,638 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:06:50,705 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 00:06:50,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2023-08-31 00:06:50,803 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2023-08-31 00:06:50,804 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 00:06:50,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-08-31 00:06:50,808 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2023-08-31 00:06:50,813 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 66 transitions, 138 flow [2023-08-31 00:06:50,820 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:06:50,834 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 66 transitions, 138 flow [2023-08-31 00:06:50,836 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 66 transitions, 138 flow [2023-08-31 00:06:50,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 66 transitions, 138 flow [2023-08-31 00:06:50,850 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2023-08-31 00:06:50,856 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:06:50,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 00:06:50,858 INFO L119 LiptonReduction]: Number of co-enabled transitions 474 [2023-08-31 00:06:53,890 INFO L134 LiptonReduction]: Checked pairs total: 956 [2023-08-31 00:06:53,891 INFO L136 LiptonReduction]: Total number of compositions: 53 [2023-08-31 00:06:53,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:06:53,909 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;@519d1dfd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:06:53,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-31 00:06:53,913 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-08-31 00:06:53,914 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:06:53,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:06:53,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:06:53,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 00:06:53,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:06:53,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1675552830, now seen corresponding path program 1 times [2023-08-31 00:06:53,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:06:53,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853440992] [2023-08-31 00:06:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:06:53,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:06:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:06:54,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:06:54,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:06:54,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853440992] [2023-08-31 00:06:54,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853440992] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:06:54,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:06:54,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 00:06:54,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548126169] [2023-08-31 00:06:54,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:06:54,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:06:54,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:06:54,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:06:54,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:06:54,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 141 [2023-08-31 00:06:54,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:54,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:06:54,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 141 [2023-08-31 00:06:54,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:06:54,461 INFO L130 PetriNetUnfolder]: 47/110 cut-off events. [2023-08-31 00:06:54,461 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 00:06:54,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 110 events. 47/110 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 377 event pairs, 23 based on Foata normal form. 10/120 useless extension candidates. Maximal degree in co-relation 214. Up to 61 conditions per place. [2023-08-31 00:06:54,463 INFO L137 encePairwiseOnDemand]: 138/141 looper letters, 15 selfloop transitions, 2 changer transitions 2/20 dead transitions. [2023-08-31 00:06:54,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 20 transitions, 87 flow [2023-08-31 00:06:54,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:06:54,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:06:54,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-31 00:06:54,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6004728132387707 [2023-08-31 00:06:54,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-31 00:06:54,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-31 00:06:54,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:06:54,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-31 00:06:54,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:54,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:54,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:54,490 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 32 flow. Second operand 3 states and 254 transitions. [2023-08-31 00:06:54,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 20 transitions, 87 flow [2023-08-31 00:06:54,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 00:06:54,495 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 38 flow [2023-08-31 00:06:54,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2023-08-31 00:06:54,500 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2023-08-31 00:06:54,500 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 38 flow [2023-08-31 00:06:54,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:54,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:06:54,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:06:54,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:06:54,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 00:06:54,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:06:54,502 INFO L85 PathProgramCache]: Analyzing trace with hash -485842887, now seen corresponding path program 1 times [2023-08-31 00:06:54,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:06:54,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951738298] [2023-08-31 00:06:54,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:06:54,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:06:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:06:54,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:06:54,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:06:54,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951738298] [2023-08-31 00:06:54,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951738298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:06:54,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:06:54,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 00:06:54,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458576321] [2023-08-31 00:06:54,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:06:54,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:06:54,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:06:54,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:06:54,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:06:54,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 141 [2023-08-31 00:06:54,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:54,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:06:54,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 141 [2023-08-31 00:06:54,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:06:54,689 INFO L130 PetriNetUnfolder]: 18/51 cut-off events. [2023-08-31 00:06:54,690 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-31 00:06:54,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 51 events. 18/51 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 4 based on Foata normal form. 12/63 useless extension candidates. Maximal degree in co-relation 118. Up to 36 conditions per place. [2023-08-31 00:06:54,691 INFO L137 encePairwiseOnDemand]: 136/141 looper letters, 11 selfloop transitions, 5 changer transitions 0/16 dead transitions. [2023-08-31 00:06:54,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 16 transitions, 78 flow [2023-08-31 00:06:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:06:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:06:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2023-08-31 00:06:54,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5768321513002365 [2023-08-31 00:06:54,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2023-08-31 00:06:54,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2023-08-31 00:06:54,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:06:54,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2023-08-31 00:06:54,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:54,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:54,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:54,697 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 38 flow. Second operand 3 states and 244 transitions. [2023-08-31 00:06:54,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 16 transitions, 78 flow [2023-08-31 00:06:54,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 76 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 00:06:54,698 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 46 flow [2023-08-31 00:06:54,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2023-08-31 00:06:54,699 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2023-08-31 00:06:54,699 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 46 flow [2023-08-31 00:06:54,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:54,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:06:54,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:06:54,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 00:06:54,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 00:06:54,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:06:54,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1785060460, now seen corresponding path program 1 times [2023-08-31 00:06:54,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:06:54,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026674330] [2023-08-31 00:06:54,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:06:54,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:06:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:06:54,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:06:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:06:54,782 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:06:54,783 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:06:54,784 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-31 00:06:54,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-31 00:06:54,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-31 00:06:54,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-08-31 00:06:54,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 00:06:54,786 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-31 00:06:54,792 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:06:54,793 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:06:54,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:06:54 BasicIcfg [2023-08-31 00:06:54,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:06:54,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:06:54,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:06:54,838 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:06:54,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:06:50" (3/4) ... [2023-08-31 00:06:54,842 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-31 00:06:54,898 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:06:54,899 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:06:54,901 INFO L158 Benchmark]: Toolchain (without parser) took 5720.07ms. Allocated memory was 65.0MB in the beginning and 117.4MB in the end (delta: 52.4MB). Free memory was 40.1MB in the beginning and 85.7MB in the end (delta: -45.6MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:54,902 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 30.7MB in the beginning and 30.7MB in the end (delta: 33.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:06:54,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 701.40ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.9MB in the beginning and 44.8MB in the end (delta: -4.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-08-31 00:06:54,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.90ms. Allocated memory is still 79.7MB. Free memory was 44.8MB in the beginning and 42.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:54,903 INFO L158 Benchmark]: Boogie Preprocessor took 35.43ms. Allocated memory is still 79.7MB. Free memory was 42.0MB in the beginning and 39.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:54,903 INFO L158 Benchmark]: RCFGBuilder took 633.93ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 39.3MB in the end (delta: 234.2kB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2023-08-31 00:06:54,903 INFO L158 Benchmark]: TraceAbstraction took 4223.87ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 38.4MB in the beginning and 37.4MB in the end (delta: 1.0MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:54,905 INFO L158 Benchmark]: Witness Printer took 61.77ms. Allocated memory is still 117.4MB. Free memory was 37.4MB in the beginning and 85.7MB in the end (delta: -48.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:54,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 30.7MB in the beginning and 30.7MB in the end (delta: 33.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 701.40ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.9MB in the beginning and 44.8MB in the end (delta: -4.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.90ms. Allocated memory is still 79.7MB. Free memory was 44.8MB in the beginning and 42.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.43ms. Allocated memory is still 79.7MB. Free memory was 42.0MB in the beginning and 39.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 633.93ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 39.3MB in the end (delta: 234.2kB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4223.87ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 38.4MB in the beginning and 37.4MB in the end (delta: 1.0MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * Witness Printer took 61.77ms. Allocated memory is still 117.4MB. Free memory was 37.4MB in the beginning and 85.7MB in the end (delta: -48.3MB). 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: 3.1s, 73 PlacesBefore, 20 PlacesAfterwards, 66 TransitionsBefore, 13 TransitionsAfterwards, 474 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, 956 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 561, independent: 471, independent conditional: 0, independent unconditional: 471, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 254, independent: 239, independent conditional: 0, independent unconditional: 239, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 561, independent: 232, independent conditional: 0, independent unconditional: 232, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 254, unknown conditional: 0, unknown unconditional: 254] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1152:1151}, argv={1152:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=0, t1={5:0}, t2={6:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1152:1151}, argv={1152:1151}, cond={4:0}, g=1, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=1, ptr={0:0}, t1={5:0}, t2={6:0}] [L1366] 2 g = 0 VAL [cond={4:0}, g=0, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1369] 2 return ((void *)0); [L1358] CALL 1 __VERIFIER_assert(g == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, \result={0:0}, cond=0, cond={4:0}, g=0, mut={3:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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: 1377]: 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, 118 locations, 4 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: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 00:06:54,935 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