/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 AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:41:57,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:41:57,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:41:57,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:41:57,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:41:57,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:41:57,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:41:57,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:41:57,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:41:57,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:41:57,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:41:57,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:41:57,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:41:57,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:41:57,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:41:57,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:41:57,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:41:57,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:41:57,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:41:57,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:41:57,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:41:57,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:41:57,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:41:57,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:41:57,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:41:57,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:41:57,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:41:57,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:41:57,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:41:57,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:41:57,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:41:57,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:41:57,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:41:57,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:41:57,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:41:57,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:41:57,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:41:57,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:41:57,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:41:57,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:41:57,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:41:57,632 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 07:41:57,653 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:41:57,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:41:57,654 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:41:57,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:41:57,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:41:57,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:41:57,655 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:41:57,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:41:57,656 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:41:57,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:41:57,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:41:57,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:41:57,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:41:57,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:41:57,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:41:57,657 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:41:57,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:41:57,658 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:41:57,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:41:57,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:41:57,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:41:57,658 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:41:57,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:41:57,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:41:57,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:41:57,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:41:57,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:41:57,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:41:57,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:41:57,659 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:41:57,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:41:57,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:41:57,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:41:57,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:41:57,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:41:57,908 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:41:57,909 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:41:57,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-01-28 07:41:59,017 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:41:59,231 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:41:59,232 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-01-28 07:41:59,251 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf5a138b7/39da474d0cd545a696187d36f5cf0c1d/FLAGe5ec87713 [2023-01-28 07:41:59,262 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf5a138b7/39da474d0cd545a696187d36f5cf0c1d [2023-01-28 07:41:59,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:41:59,266 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:41:59,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:41:59,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:41:59,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:41:59,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55795f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59, skipping insertion in model container [2023-01-28 07:41:59,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:41:59,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:41:59,485 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_1_pos.i[1097,1110] [2023-01-28 07:41:59,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:41:59,643 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:41:59,655 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_1_pos.i[1097,1110] [2023-01-28 07:41:59,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:41:59,740 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:41:59,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59 WrapperNode [2023-01-28 07:41:59,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:41:59,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:41:59,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:41:59,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:41:59,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,799 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-01-28 07:41:59,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:41:59,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:41:59,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:41:59,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:41:59,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,829 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:41:59,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:41:59,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:41:59,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:41:59,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (1/1) ... [2023-01-28 07:41:59,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:41:59,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:41:59,861 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 07:41:59,869 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 07:41:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:41:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:41:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:41:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:41:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:41:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 07:41:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 07:41:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:41:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:41:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:41:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:41:59,901 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 07:42:00,017 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:42:00,019 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:42:00,146 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:42:00,152 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:42:00,152 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:42:00,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:42:00 BoogieIcfgContainer [2023-01-28 07:42:00,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:42:00,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:42:00,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:42:00,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:42:00,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:41:59" (1/3) ... [2023-01-28 07:42:00,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2545901e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:42:00, skipping insertion in model container [2023-01-28 07:42:00,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:59" (2/3) ... [2023-01-28 07:42:00,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2545901e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:42:00, skipping insertion in model container [2023-01-28 07:42:00,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:42:00" (3/3) ... [2023-01-28 07:42:00,166 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2023-01-28 07:42:00,182 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:42:00,182 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 07:42:00,182 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:42:00,241 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 07:42:00,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 07:42:00,297 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-01-28 07:42:00,297 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:42:00,300 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 07:42:00,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 07:42:00,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:00,305 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:42:00,312 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:00,315 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:00,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:00,328 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-01-28 07:42:00,329 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:42:00,329 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 07:42:00,330 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-01-28 07:42:02,158 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-01-28 07:42:02,158 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-01-28 07:42:02,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:42:02,175 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;@2792a844, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:42:02,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 07:42:02,178 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-28 07:42:02,178 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:42:02,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:02,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 07:42:02,179 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 07:42:02,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:02,183 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-01-28 07:42:02,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:02,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099369543] [2023-01-28 07:42:02,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:02,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:42:02,281 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 07:42:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:42:02,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 07:42:02,315 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 07:42:02,316 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 07:42:02,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 07:42:02,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-28 07:42:02,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:42:02,318 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 07:42:02,327 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:42:02,327 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:42:02,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:42:02 BasicIcfg [2023-01-28 07:42:02,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:42:02,343 INFO L158 Benchmark]: Toolchain (without parser) took 3076.91ms. Allocated memory is still 350.2MB. Free memory was 294.8MB in the beginning and 303.6MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:42:02,343 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:42:02,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.05ms. Allocated memory is still 350.2MB. Free memory was 294.6MB in the beginning and 319.2MB in the end (delta: -24.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 07:42:02,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.97ms. Allocated memory is still 350.2MB. Free memory was 319.2MB in the beginning and 317.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:42:02,344 INFO L158 Benchmark]: Boogie Preprocessor took 31.18ms. Allocated memory is still 350.2MB. Free memory was 317.6MB in the beginning and 316.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:42:02,345 INFO L158 Benchmark]: RCFGBuilder took 326.23ms. Allocated memory is still 350.2MB. Free memory was 316.0MB in the beginning and 303.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 07:42:02,345 INFO L158 Benchmark]: TraceAbstraction took 2182.05ms. Allocated memory is still 350.2MB. Free memory was 303.3MB in the beginning and 303.6MB in the end (delta: -373.5kB). Peak memory consumption was 365.3kB. Max. memory is 16.0GB. [2023-01-28 07:42:02,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 475.05ms. Allocated memory is still 350.2MB. Free memory was 294.6MB in the beginning and 319.2MB in the end (delta: -24.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.97ms. Allocated memory is still 350.2MB. Free memory was 319.2MB in the beginning and 317.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 31.18ms. Allocated memory is still 350.2MB. Free memory was 317.6MB in the beginning and 316.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 326.23ms. Allocated memory is still 350.2MB. Free memory was 316.0MB in the beginning and 303.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2182.05ms. Allocated memory is still 350.2MB. Free memory was 303.3MB in the beginning and 303.6MB in the end (delta: -373.5kB). Peak memory consumption was 365.3kB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 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 TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, 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: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, 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 07:42:02,363 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...