/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_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:41:53,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:41:53,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:41:53,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:41:53,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:41:53,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:41:53,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:41:53,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:41:53,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:41:53,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:41:53,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:41:53,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:41:53,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:41:53,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:41:53,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:41:53,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:41:53,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:41:53,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:41:53,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:41:53,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:41:53,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:41:53,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:41:53,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:41:53,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:41:53,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:41:53,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:41:53,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:41:53,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:41:53,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:41:53,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:41:53,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:41:53,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:41:53,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:41:53,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:41:53,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:41:53,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:41:53,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:41:53,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:41:53,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:41:53,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:41:53,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:41:53,110 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 07:41:53,131 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:41:53,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:41:53,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:41:53,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:41:53,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:41:53,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:41:53,132 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:41:53,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:41:53,132 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:41:53,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:41:53,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:41:53,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:41:53,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:41:53,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:41:53,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:41:53,133 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:41:53,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:41:53,133 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:41:53,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:41:53,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:41:53,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:41:53,133 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:41:53,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:41:53,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:41:53,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:41:53,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:41:53,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:41:53,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:41:53,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:41:53,134 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:41:53,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:41:53,134 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:41:53,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:41:53,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:41:53,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:41:53,354 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:41:53,356 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:41:53,356 INFO L432 ainManager$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_neg.i [2023-01-28 07:41:54,293 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:41:54,454 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:41:54,454 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-01-28 07:41:54,463 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b2dc0776/fe1c6329cb484146a6a58733ae011727/FLAGad494d372 [2023-01-28 07:41:54,471 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b2dc0776/fe1c6329cb484146a6a58733ae011727 [2023-01-28 07:41:54,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:41:54,473 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:41:54,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:41:54,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:41:54,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:41:54,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75eb4d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54, skipping insertion in model container [2023-01-28 07:41:54,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:41:54,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:41:54,599 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_neg.i[1097,1110] [2023-01-28 07:41:54,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:41:54,715 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:41:54,725 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_neg.i[1097,1110] [2023-01-28 07:41:54,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:41:54,789 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:41:54,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54 WrapperNode [2023-01-28 07:41:54,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:41:54,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:41:54,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:41:54,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:41:54,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,812 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-01-28 07:41:54,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:41:54,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:41:54,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:41:54,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:41:54,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,823 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:41:54,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:41:54,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:41:54,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:41:54,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (1/1) ... [2023-01-28 07:41:54,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:41:54,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:41:54,851 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 07:41:54,857 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 07:41:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:41:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:41:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:41:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:41:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:41:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 07:41:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 07:41:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:41:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:41:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:41:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:41:54,887 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 07:41:55,017 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:41:55,018 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:41:55,183 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:41:55,187 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:41:55,187 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:41:55,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:41:55 BoogieIcfgContainer [2023-01-28 07:41:55,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:41:55,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:41:55,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:41:55,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:41:55,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:41:54" (1/3) ... [2023-01-28 07:41:55,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74087a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:41:55, skipping insertion in model container [2023-01-28 07:41:55,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:41:54" (2/3) ... [2023-01-28 07:41:55,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74087a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:41:55, skipping insertion in model container [2023-01-28 07:41:55,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:41:55" (3/3) ... [2023-01-28 07:41:55,217 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2023-01-28 07:41:55,253 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:41:55,253 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 07:41:55,254 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:41:55,284 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 07:41:55,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 07:41:55,327 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-01-28 07:41:55,327 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:41:55,330 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 07:41:55,330 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 07:41:55,332 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-01-28 07:41:55,334 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:41:55,340 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 07:41:55,342 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 07:41:55,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-01-28 07:41:55,353 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-01-28 07:41:55,353 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:41:55,353 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 07:41:55,354 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-01-28 07:41:56,550 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-01-28 07:41:56,550 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-01-28 07:41:56,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:41:56,570 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;@4b1c21e0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:41:56,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 07:41:56,573 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-28 07:41:56,573 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:41:56,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:41:56,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 07:41:56,574 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 07:41:56,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:41:56,579 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-01-28 07:41:56,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:41:56,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311957844] [2023-01-28 07:41:56,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:41:56,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:41:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:41:56,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 07:41:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:41:56,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 07:41:56,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 07:41:56,725 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 07:41:56,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 07:41:56,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-28 07:41:56,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:41:56,727 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 07:41:56,731 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:41:56,731 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:41:56,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:41:56 BasicIcfg [2023-01-28 07:41:56,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:41:56,743 INFO L158 Benchmark]: Toolchain (without parser) took 2268.98ms. Allocated memory was 362.8MB in the beginning and 587.2MB in the end (delta: 224.4MB). Free memory was 303.0MB in the beginning and 403.8MB in the end (delta: -100.8MB). Peak memory consumption was 126.3MB. Max. memory is 16.0GB. [2023-01-28 07:41:56,743 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 362.8MB. Free memory is still 309.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:41:56,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.99ms. Allocated memory is still 362.8MB. Free memory was 302.7MB in the beginning and 284.1MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 07:41:56,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.33ms. Allocated memory is still 362.8MB. Free memory was 284.1MB in the beginning and 282.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:41:56,744 INFO L158 Benchmark]: Boogie Preprocessor took 12.72ms. Allocated memory is still 362.8MB. Free memory was 282.0MB in the beginning and 280.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:41:56,744 INFO L158 Benchmark]: RCFGBuilder took 362.71ms. Allocated memory is still 362.8MB. Free memory was 280.6MB in the beginning and 268.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 07:41:56,745 INFO L158 Benchmark]: TraceAbstraction took 1552.42ms. Allocated memory was 362.8MB in the beginning and 587.2MB in the end (delta: 224.4MB). Free memory was 268.0MB in the beginning and 403.8MB in the end (delta: -135.8MB). Peak memory consumption was 90.6MB. Max. memory is 16.0GB. [2023-01-28 07:41:56,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 362.8MB. Free memory is still 309.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 314.99ms. Allocated memory is still 362.8MB. Free memory was 302.7MB in the beginning and 284.1MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 22.33ms. Allocated memory is still 362.8MB. Free memory was 284.1MB in the beginning and 282.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 12.72ms. Allocated memory is still 362.8MB. Free memory was 282.0MB in the beginning and 280.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 362.71ms. Allocated memory is still 362.8MB. Free memory was 280.6MB in the beginning and 268.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1552.42ms. Allocated memory was 362.8MB in the beginning and 587.2MB in the end (delta: 224.4MB). Free memory was 268.0MB in the beginning and 403.8MB in the end (delta: -135.8MB). Peak memory consumption was 90.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 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 == 0)) [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: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, 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 07:41:56,759 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...