./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/pthread-divine/condvar_spurious_wakeup.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 829a526a08c17a0464f47e0e793f1cfb84d5a37f .................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 14:46:52,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 14:46:52,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 14:46:52,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 14:46:52,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 14:46:52,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 14:46:52,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 14:46:52,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 14:46:52,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 14:46:52,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 14:46:52,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 14:46:52,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 14:46:52,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 14:46:52,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 14:46:52,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 14:46:52,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 14:46:52,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 14:46:52,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 14:46:52,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 14:46:52,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 14:46:52,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 14:46:52,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 14:46:52,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 14:46:52,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 14:46:52,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 14:46:52,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 14:46:52,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 14:46:52,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 14:46:52,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 14:46:52,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 14:46:52,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 14:46:52,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 14:46:52,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 14:46:52,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 14:46:52,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 14:46:52,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 14:46:52,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 14:46:52,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 14:46:52,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 14:46:52,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 14:46:52,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 14:46:52,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 14:46:52,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 14:46:52,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 14:46:52,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 14:46:52,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 14:46:52,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 14:46:52,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 14:46:52,235 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 14:46:52,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 14:46:52,235 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 14:46:52,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 14:46:52,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 14:46:52,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 14:46:52,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 14:46:52,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 14:46:52,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 14:46:52,236 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 14:46:52,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 14:46:52,236 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 14:46:52,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 14:46:52,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 14:46:52,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 14:46:52,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 14:46:52,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 14:46:52,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 14:46:52,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 14:46:52,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 14:46:52,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 14:46:52,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 14:46:52,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 14:46:52,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 14:46:52,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 829a526a08c17a0464f47e0e793f1cfb84d5a37f [2021-08-26 14:46:52,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 14:46:52,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 14:46:52,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 14:46:52,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 14:46:52,546 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 14:46:52,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2021-08-26 14:46:52,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7cbba3d/8c913fcc0afd4292820c4c34605ef355/FLAG192a62d80 [2021-08-26 14:46:53,140 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 14:46:53,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2021-08-26 14:46:53,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7cbba3d/8c913fcc0afd4292820c4c34605ef355/FLAG192a62d80 [2021-08-26 14:46:53,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7cbba3d/8c913fcc0afd4292820c4c34605ef355 [2021-08-26 14:46:53,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 14:46:53,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 14:46:53,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 14:46:53,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 14:46:53,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 14:46:53,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197e1eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53, skipping insertion in model container [2021-08-26 14:46:53,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 14:46:53,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 14:46:53,623 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-26 14:46:53,801 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-08-26 14:46:53,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 14:46:53,827 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 14:46:53,843 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-26 14:46:53,865 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-08-26 14:46:53,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 14:46:53,907 INFO L208 MainTranslator]: Completed translation [2021-08-26 14:46:53,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53 WrapperNode [2021-08-26 14:46:53,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 14:46:53,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 14:46:53,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 14:46:53,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 14:46:53,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 14:46:53,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 14:46:53,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 14:46:53,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 14:46:53,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:53,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 14:46:53,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 14:46:53,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 14:46:53,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 14:46:53,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (1/1) ... [2021-08-26 14:46:54,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 14:46:54,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 14:46:54,019 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) [2021-08-26 14:46:54,029 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 [2021-08-26 14:46:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 14:46:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 14:46:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-26 14:46:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 14:46:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 14:46:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 14:46:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-08-26 14:46:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-08-26 14:46:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 14:46:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 14:46:54,066 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-26 14:46:54,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 14:46:54,459 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-26 14:46:54,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:46:54 BoogieIcfgContainer [2021-08-26 14:46:54,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 14:46:54,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 14:46:54,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 14:46:54,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 14:46:54,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 02:46:53" (1/3) ... [2021-08-26 14:46:54,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f841a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:46:54, skipping insertion in model container [2021-08-26 14:46:54,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:46:53" (2/3) ... [2021-08-26 14:46:54,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f841a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:46:54, skipping insertion in model container [2021-08-26 14:46:54,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:46:54" (3/3) ... [2021-08-26 14:46:54,467 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-08-26 14:46:54,472 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-26 14:46:54,472 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 14:46:54,472 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 14:46:54,472 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-26 14:46:54,497 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,498 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,498 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,498 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,498 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,500 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,500 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,500 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,501 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,501 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,501 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,501 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,505 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,505 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,505 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,505 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,506 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,506 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:46:54,514 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-08-26 14:46:54,550 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 14:46:54,554 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 14:46:54,554 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-26 14:46:54,565 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-26 14:46:54,573 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 68 transitions, 144 flow [2021-08-26 14:46:54,576 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 68 transitions, 144 flow [2021-08-26 14:46:54,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 68 transitions, 144 flow [2021-08-26 14:46:54,608 INFO L129 PetriNetUnfolder]: 3/67 cut-off events. [2021-08-26 14:46:54,609 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-26 14:46:54,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 67 events. 3/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-08-26 14:46:54,620 INFO L116 LiptonReduction]: Number of co-enabled transitions 286 [2021-08-26 14:46:59,017 INFO L131 LiptonReduction]: Checked pairs total: 262 [2021-08-26 14:46:59,018 INFO L133 LiptonReduction]: Total number of compositions: 63 [2021-08-26 14:46:59,025 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2021-08-26 14:46:59,031 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-08-26 14:46:59,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-08-26 14:46:59,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-08-26 14:46:59,037 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:46:59,037 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-08-26 14:46:59,038 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 14:46:59,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:46:59,043 INFO L82 PathProgramCache]: Analyzing trace with hash 253215, now seen corresponding path program 1 times [2021-08-26 14:46:59,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:46:59,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687388606] [2021-08-26 14:46:59,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:46:59,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:46:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 14:46:59,197 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 14:46:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 14:46:59,260 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 14:46:59,262 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 14:46:59,263 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 14:46:59,265 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-26 14:46:59,265 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 14:46:59,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 14:46:59,271 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-26 14:46:59,271 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 14:46:59,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 02:46:59 BasicIcfg [2021-08-26 14:46:59,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 14:46:59,289 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 14:46:59,289 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 14:46:59,290 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 14:46:59,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:46:54" (3/4) ... [2021-08-26 14:46:59,291 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 14:46:59,328 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 14:46:59,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 14:46:59,330 INFO L168 Benchmark]: Toolchain (without parser) took 5864.32 ms. Allocated memory was 69.2 MB in the beginning and 159.4 MB in the end (delta: 90.2 MB). Free memory was 50.9 MB in the beginning and 91.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.1 GB. [2021-08-26 14:46:59,331 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 69.2 MB. Free memory was 52.0 MB in the beginning and 52.0 MB in the end (delta: 58.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 14:46:59,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.41 ms. Allocated memory is still 69.2 MB. Free memory was 50.6 MB in the beginning and 44.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 14:46:59,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.03 ms. Allocated memory is still 69.2 MB. Free memory was 44.4 MB in the beginning and 42.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 14:46:59,332 INFO L168 Benchmark]: Boogie Preprocessor took 34.37 ms. Allocated memory is still 69.2 MB. Free memory was 42.3 MB in the beginning and 41.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 14:46:59,333 INFO L168 Benchmark]: RCFGBuilder took 468.78 ms. Allocated memory is still 69.2 MB. Free memory was 41.0 MB in the beginning and 42.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-08-26 14:46:59,333 INFO L168 Benchmark]: TraceAbstraction took 4826.41 ms. Allocated memory was 69.2 MB in the beginning and 159.4 MB in the end (delta: 90.2 MB). Free memory was 41.7 MB in the beginning and 93.9 MB in the end (delta: -52.3 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-08-26 14:46:59,334 INFO L168 Benchmark]: Witness Printer took 39.41 ms. Allocated memory is still 159.4 MB. Free memory was 93.9 MB in the beginning and 91.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 14:46:59,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 69.2 MB. Free memory was 52.0 MB in the beginning and 52.0 MB in the end (delta: 58.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 442.41 ms. Allocated memory is still 69.2 MB. Free memory was 50.6 MB in the beginning and 44.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.03 ms. Allocated memory is still 69.2 MB. Free memory was 44.4 MB in the beginning and 42.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.37 ms. Allocated memory is still 69.2 MB. Free memory was 42.3 MB in the beginning and 41.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 468.78 ms. Allocated memory is still 69.2 MB. Free memory was 41.0 MB in the beginning and 42.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4826.41 ms. Allocated memory was 69.2 MB in the beginning and 159.4 MB in the end (delta: 90.2 MB). Free memory was 41.7 MB in the beginning and 93.9 MB in the end (delta: -52.3 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * Witness Printer took 39.41 ms. Allocated memory is still 159.4 MB. Free memory was 93.9 MB in the beginning and 91.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4442.5ms, 69 PlacesBefore, 13 PlacesAfterwards, 68 TransitionsBefore, 10 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 262 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 254, positive: 246, positive conditional: 0, positive unconditional: 246, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 201, positive: 196, positive conditional: 0, positive unconditional: 196, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 201, positive: 196, positive conditional: 0, positive unconditional: 196, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 254, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 201, unknown conditional: 0, unknown unconditional: 201] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; [L698] 0 pthread_cond_t cond; [L699] 0 int x; [L709] 0 pthread_t t; [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={13:0}, lock={9:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={13:0}, lock={9:0}, x=0] - UnprovableResult [Line: 712]: 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 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4719.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4476.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.3ms SsaConstructionTime, 73.7ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2021-08-26 14:46:59,368 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...