/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 01:27:18,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 01:27:18,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 01:27:18,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 01:27:18,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 01:27:18,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 01:27:18,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 01:27:18,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 01:27:18,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 01:27:18,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 01:27:18,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 01:27:18,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 01:27:18,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 01:27:18,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 01:27:18,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 01:27:18,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 01:27:18,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 01:27:18,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 01:27:18,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 01:27:18,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 01:27:18,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 01:27:18,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 01:27:18,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 01:27:18,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 01:27:18,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 01:27:18,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 01:27:18,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 01:27:18,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 01:27:18,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 01:27:18,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 01:27:18,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 01:27:18,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 01:27:18,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 01:27:18,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 01:27:18,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 01:27:18,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 01:27:18,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 01:27:18,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 01:27:18,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 01:27:18,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 01:27:18,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 01:27:18,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 01:27:18,992 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 01:27:18,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 01:27:18,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 01:27:18,993 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 01:27:18,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 01:27:18,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 01:27:18,994 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 01:27:18,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 01:27:18,995 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 01:27:18,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 01:27:18,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 01:27:18,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 01:27:18,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 01:27:18,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 01:27:18,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 01:27:18,996 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 01:27:18,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 01:27:18,997 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 01:27:18,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 01:27:18,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 01:27:18,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 01:27:18,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 01:27:18,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 01:27:18,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:27:18,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 01:27:18,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 01:27:18,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 01:27:18,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 01:27:18,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 01:27:18,999 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 01:27:18,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 01:27:18,999 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 01:27:19,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 01:27:19,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 01:27:19,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 01:27:19,244 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 01:27:19,244 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 01:27:19,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-01-28 01:27:20,332 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 01:27:20,520 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 01:27:20,520 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-01-28 01:27:20,536 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feb3e3dfe/fc818c75459340bda8c95373da573f21/FLAG936773079 [2023-01-28 01:27:20,552 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feb3e3dfe/fc818c75459340bda8c95373da573f21 [2023-01-28 01:27:20,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 01:27:20,555 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 01:27:20,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 01:27:20,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 01:27:20,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 01:27:20,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:27:20" (1/1) ... [2023-01-28 01:27:20,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb62df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:20, skipping insertion in model container [2023-01-28 01:27:20,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:27:20" (1/1) ... [2023-01-28 01:27:20,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 01:27:20,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 01:27:20,776 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_18-first-reads_unknown_2_pos.i[1097,1110] [2023-01-28 01:27:20,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:27:20,942 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 01:27:20,954 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_18-first-reads_unknown_2_pos.i[1097,1110] [2023-01-28 01:27:20,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:27:21,023 INFO L208 MainTranslator]: Completed translation [2023-01-28 01:27:21,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21 WrapperNode [2023-01-28 01:27:21,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 01:27:21,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 01:27:21,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 01:27:21,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 01:27:21,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,071 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-01-28 01:27:21,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 01:27:21,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 01:27:21,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 01:27:21,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 01:27:21,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,099 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 01:27:21,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 01:27:21,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 01:27:21,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 01:27:21,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (1/1) ... [2023-01-28 01:27:21,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:27:21,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:27:21,146 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) [2023-01-28 01:27:21,164 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 [2023-01-28 01:27:21,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 01:27:21,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 01:27:21,184 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 01:27:21,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 01:27:21,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 01:27:21,185 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 01:27:21,185 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 01:27:21,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 01:27:21,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 01:27:21,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 01:27:21,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 01:27:21,187 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 01:27:21,353 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 01:27:21,355 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 01:27:21,487 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 01:27:21,492 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 01:27:21,492 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 01:27:21,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:27:21 BoogieIcfgContainer [2023-01-28 01:27:21,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 01:27:21,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 01:27:21,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 01:27:21,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 01:27:21,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:27:20" (1/3) ... [2023-01-28 01:27:21,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129a0e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:27:21, skipping insertion in model container [2023-01-28 01:27:21,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:21" (2/3) ... [2023-01-28 01:27:21,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129a0e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:27:21, skipping insertion in model container [2023-01-28 01:27:21,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:27:21" (3/3) ... [2023-01-28 01:27:21,503 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2023-01-28 01:27:21,518 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 01:27:21,518 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 01:27:21,518 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 01:27:21,601 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 01:27:21,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 01:27:21,683 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-01-28 01:27:21,683 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 01:27:21,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 2/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-01-28 01:27:21,687 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 01:27:21,690 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-01-28 01:27:21,693 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:27:21,706 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 01:27:21,710 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 01:27:21,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-01-28 01:27:21,744 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-01-28 01:27:21,744 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:21,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-01-28 01:27:21,746 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-01-28 01:27:23,597 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-01-28 01:27:23,597 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-01-28 01:27:23,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 01:27:23,620 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=false, 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;@2ac3619b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:27:23,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 01:27:23,632 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-28 01:27:23,633 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:23,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:27:23,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 01:27:23,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-28 01:27:23,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:27:23,639 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-01-28 01:27:23,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:27:23,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169884656] [2023-01-28 01:27:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:27:23,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:27:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:27:23,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:27:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:27:23,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:27:23,798 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:27:23,799 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 01:27:23,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 01:27:23,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-28 01:27:23,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 01:27:23,801 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:27:23,806 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 01:27:23,807 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 01:27:23,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 01:27:23 BasicIcfg [2023-01-28 01:27:23,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 01:27:23,821 INFO L158 Benchmark]: Toolchain (without parser) took 3265.67ms. Allocated memory is still 356.5MB. Free memory was 315.9MB in the beginning and 279.1MB in the end (delta: 36.9MB). Peak memory consumption was 40.0MB. Max. memory is 16.0GB. [2023-01-28 01:27:23,822 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 01:27:23,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.00ms. Allocated memory is still 356.5MB. Free memory was 315.6MB in the beginning and 296.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 01:27:23,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.31ms. Allocated memory is still 356.5MB. Free memory was 296.8MB in the beginning and 295.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 01:27:23,823 INFO L158 Benchmark]: Boogie Preprocessor took 29.65ms. Allocated memory is still 356.5MB. Free memory was 295.0MB in the beginning and 293.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 01:27:23,823 INFO L158 Benchmark]: RCFGBuilder took 391.35ms. Allocated memory is still 356.5MB. Free memory was 293.6MB in the beginning and 281.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 01:27:23,824 INFO L158 Benchmark]: TraceAbstraction took 2324.86ms. Allocated memory is still 356.5MB. Free memory was 280.8MB in the beginning and 279.1MB in the end (delta: 1.8MB). Peak memory consumption was 4.4MB. Max. memory is 16.0GB. [2023-01-28 01:27:23,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 467.00ms. Allocated memory is still 356.5MB. Free memory was 315.6MB in the beginning and 296.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.31ms. Allocated memory is still 356.5MB. Free memory was 296.8MB in the beginning and 295.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 29.65ms. Allocated memory is still 356.5MB. Free memory was 295.0MB in the beginning and 293.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 391.35ms. Allocated memory is still 356.5MB. Free memory was 293.6MB in the beginning and 281.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2324.86ms. Allocated memory is still 356.5MB. Free memory was 280.8MB in the beginning and 279.1MB in the end (delta: 1.8MB). Peak memory consumption was 4.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 47 PlacesBefore, 9 PlacesAfterwards, 44 TransitionsBefore, 5 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 81 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s 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! [2023-01-28 01:27:23,842 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...