/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/36-apron_41-threadenter-no-locals_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 02:11:05,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 02:11:05,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 02:11:05,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 02:11:05,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 02:11:05,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 02:11:05,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 02:11:05,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 02:11:05,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 02:11:05,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 02:11:05,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 02:11:05,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 02:11:05,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 02:11:05,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 02:11:05,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 02:11:05,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 02:11:05,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 02:11:05,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 02:11:05,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 02:11:05,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 02:11:05,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 02:11:05,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 02:11:05,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 02:11:05,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 02:11:05,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 02:11:05,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 02:11:05,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 02:11:05,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 02:11:05,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 02:11:05,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 02:11:05,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 02:11:05,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 02:11:05,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 02:11:05,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 02:11:05,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 02:11:05,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 02:11:05,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 02:11:05,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 02:11:05,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 02:11:05,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 02:11:05,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 02:11:05,818 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 02:11:05,838 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 02:11:05,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 02:11:05,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 02:11:05,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 02:11:05,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 02:11:05,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 02:11:05,840 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 02:11:05,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 02:11:05,840 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 02:11:05,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 02:11:05,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 02:11:05,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 02:11:05,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 02:11:05,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 02:11:05,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 02:11:05,841 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 02:11:05,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 02:11:05,842 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 02:11:05,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 02:11:05,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 02:11:05,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 02:11:05,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 02:11:05,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 02:11:05,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:11:05,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 02:11:05,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 02:11:05,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 02:11:05,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 02:11:05,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 02:11:05,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 02:11:05,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 02:11:05,843 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 02:11:06,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 02:11:06,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 02:11:06,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 02:11:06,065 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 02:11:06,065 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 02:11:06,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-01-28 02:11:07,025 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 02:11:07,183 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 02:11:07,183 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-01-28 02:11:07,203 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5d0c7478/6c8d10337ed34c9cb392b424841038a2/FLAG85ba3bb1b [2023-01-28 02:11:07,213 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5d0c7478/6c8d10337ed34c9cb392b424841038a2 [2023-01-28 02:11:07,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 02:11:07,216 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 02:11:07,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 02:11:07,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 02:11:07,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 02:11:07,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@392e547f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07, skipping insertion in model container [2023-01-28 02:11:07,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 02:11:07,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 02:11:07,369 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/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2023-01-28 02:11:07,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:11:07,492 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 02:11:07,501 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/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2023-01-28 02:11:07,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:11:07,546 INFO L208 MainTranslator]: Completed translation [2023-01-28 02:11:07,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07 WrapperNode [2023-01-28 02:11:07,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 02:11:07,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 02:11:07,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 02:11:07,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 02:11:07,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,594 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2023-01-28 02:11:07,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 02:11:07,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 02:11:07,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 02:11:07,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 02:11:07,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,625 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 02:11:07,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 02:11:07,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 02:11:07,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 02:11:07,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (1/1) ... [2023-01-28 02:11:07,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:11:07,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:11:07,667 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 02:11:07,673 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 02:11:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 02:11:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 02:11:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 02:11:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 02:11:07,701 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 02:11:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 02:11:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 02:11:07,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 02:11:07,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 02:11:07,702 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 02:11:07,813 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 02:11:07,815 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 02:11:07,915 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 02:11:07,919 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 02:11:07,920 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 02:11:07,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:11:07 BoogieIcfgContainer [2023-01-28 02:11:07,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 02:11:07,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 02:11:07,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 02:11:07,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 02:11:07,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 02:11:07" (1/3) ... [2023-01-28 02:11:07,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe39bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:11:07, skipping insertion in model container [2023-01-28 02:11:07,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:07" (2/3) ... [2023-01-28 02:11:07,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe39bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:11:07, skipping insertion in model container [2023-01-28 02:11:07,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:11:07" (3/3) ... [2023-01-28 02:11:07,937 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-01-28 02:11:07,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 02:11:07,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 02:11:07,952 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 02:11:08,002 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 02:11:08,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 38 transitions, 81 flow [2023-01-28 02:11:08,047 INFO L130 PetriNetUnfolder]: 1/37 cut-off events. [2023-01-28 02:11:08,047 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:11:08,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 37 events. 1/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-01-28 02:11:08,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 38 transitions, 81 flow [2023-01-28 02:11:08,053 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 32 transitions, 67 flow [2023-01-28 02:11:08,055 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 02:11:08,062 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 32 transitions, 67 flow [2023-01-28 02:11:08,064 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 32 transitions, 67 flow [2023-01-28 02:11:08,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 67 flow [2023-01-28 02:11:08,072 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2023-01-28 02:11:08,073 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:11:08,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-01-28 02:11:08,073 INFO L119 LiptonReduction]: Number of co-enabled transitions 140 [2023-01-28 02:11:08,893 INFO L134 LiptonReduction]: Checked pairs total: 88 [2023-01-28 02:11:08,894 INFO L136 LiptonReduction]: Total number of compositions: 28 [2023-01-28 02:11:08,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 02:11:08,907 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;@2dde53de, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 02:11:08,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 02:11:08,912 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-28 02:11:08,912 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:11:08,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:11:08,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 02:11:08,913 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 02:11:08,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:11:08,920 INFO L85 PathProgramCache]: Analyzing trace with hash 153046, now seen corresponding path program 1 times [2023-01-28 02:11:08,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:11:08,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188487384] [2023-01-28 02:11:08,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:11:08,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:11:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 02:11:09,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 02:11:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 02:11:09,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 02:11:09,025 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 02:11:09,026 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 02:11:09,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 02:11:09,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-28 02:11:09,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 02:11:09,028 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 02:11:09,033 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 02:11:09,033 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 02:11:09,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 02:11:09 BasicIcfg [2023-01-28 02:11:09,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 02:11:09,045 INFO L158 Benchmark]: Toolchain (without parser) took 1828.54ms. Allocated memory is still 327.2MB. Free memory was 286.4MB in the beginning and 238.1MB in the end (delta: 48.2MB). Peak memory consumption was 49.8MB. Max. memory is 16.0GB. [2023-01-28 02:11:09,045 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 213.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 02:11:09,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.40ms. Allocated memory is still 327.2MB. Free memory was 286.0MB in the beginning and 267.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-01-28 02:11:09,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.34ms. Allocated memory is still 327.2MB. Free memory was 267.8MB in the beginning and 266.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 02:11:09,046 INFO L158 Benchmark]: Boogie Preprocessor took 31.74ms. Allocated memory is still 327.2MB. Free memory was 266.0MB in the beginning and 264.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 02:11:09,046 INFO L158 Benchmark]: RCFGBuilder took 293.90ms. Allocated memory is still 327.2MB. Free memory was 264.7MB in the beginning and 253.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 02:11:09,046 INFO L158 Benchmark]: TraceAbstraction took 1111.19ms. Allocated memory is still 327.2MB. Free memory was 253.2MB in the beginning and 238.1MB in the end (delta: 15.0MB). Peak memory consumption was 18.3MB. Max. memory is 16.0GB. [2023-01-28 02:11:09,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 213.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 330.40ms. Allocated memory is still 327.2MB. Free memory was 286.0MB in the beginning and 267.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.34ms. Allocated memory is still 327.2MB. Free memory was 267.8MB in the beginning and 266.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.74ms. Allocated memory is still 327.2MB. Free memory was 266.0MB in the beginning and 264.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 293.90ms. Allocated memory is still 327.2MB. Free memory was 264.7MB in the beginning and 253.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1111.19ms. Allocated memory is still 327.2MB. Free memory was 253.2MB in the beginning and 238.1MB in the end (delta: 15.0MB). Peak memory consumption was 18.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8s, 36 PlacesBefore, 8 PlacesAfterwards, 32 TransitionsBefore, 4 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 28 TotalNumberOfCompositions, 88 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 88, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 69, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 88, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 69, unknown conditional: 0, unknown unconditional: 69] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: 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, 54 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: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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 02:11:09,063 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...