/usr/bin/java -Xmx8000000000 -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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:45:29,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:45:29,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:45:29,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:45:29,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:45:29,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:45:29,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:45:29,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:45:29,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:45:29,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:45:29,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:45:29,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:45:29,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:45:29,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:45:29,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:45:29,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:45:29,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:45:29,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:45:29,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:45:29,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:45:29,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:45:29,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:45:29,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:45:29,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:45:29,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 20:45:29,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:45:29,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:45:29,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:45:29,372 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-SemanticLbe.epf [2022-12-05 20:45:29,385 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:45:29,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:45:29,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:45:29,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:45:29,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:45:29,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:45:29,387 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:45:29,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:45:29,387 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:45:29,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:45:29,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:45:29,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:45:29,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:45:29,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:45:29,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:45:29,388 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:45:29,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:45:29,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:45:29,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:45:29,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:45:29,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:45:29,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:45:29,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:45:29,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:45:29,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:45:29,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:45:29,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:45:29,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:45:29,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:45:29,390 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:45:29,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:45:29,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:45:29,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:45:29,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:45:29,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:45:29,672 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:45:29,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-12-05 20:45:30,524 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:45:30,755 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:45:30,756 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-12-05 20:45:30,763 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b1df19d/55c1bbd01a3748e6867980f472277c5b/FLAG256a43448 [2022-12-05 20:45:30,772 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b1df19d/55c1bbd01a3748e6867980f472277c5b [2022-12-05 20:45:30,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:45:30,775 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:45:30,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:45:30,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:45:30,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:45:30,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:45:30" (1/1) ... [2022-12-05 20:45:30,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326f2b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:30, skipping insertion in model container [2022-12-05 20:45:30,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:45:30" (1/1) ... [2022-12-05 20:45:30,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:45:30,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:45:30,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-12-05 20:45:30,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:45:31,001 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:45:31,008 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-12-05 20:45:31,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:45:31,047 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:45:31,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31 WrapperNode [2022-12-05 20:45:31,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:45:31,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:45:31,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:45:31,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:45:31,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,074 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-05 20:45:31,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:45:31,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:45:31,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:45:31,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:45:31,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,087 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:45:31,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:45:31,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:45:31,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:45:31,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (1/1) ... [2022-12-05 20:45:31,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:45:31,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:45:31,115 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) [2022-12-05 20:45:31,133 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 [2022-12-05 20:45:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:45:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:45:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:45:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:45:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:45:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 20:45:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 20:45:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:45:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:45:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:45:31,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:45:31,161 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:45:31,325 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:45:31,326 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:45:31,410 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:45:31,414 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:45:31,414 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:45:31,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:45:31 BoogieIcfgContainer [2022-12-05 20:45:31,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:45:31,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:45:31,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:45:31,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:45:31,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:45:30" (1/3) ... [2022-12-05 20:45:31,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ed6799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:45:31, skipping insertion in model container [2022-12-05 20:45:31,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:31" (2/3) ... [2022-12-05 20:45:31,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ed6799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:45:31, skipping insertion in model container [2022-12-05 20:45:31,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:45:31" (3/3) ... [2022-12-05 20:45:31,424 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2022-12-05 20:45:31,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:45:31,437 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:45:31,437 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:45:31,473 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 20:45:31,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-05 20:45:31,516 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-05 20:45:31,516 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:45:31,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 2/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-05 20:45:31,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-05 20:45:31,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:31,523 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:45:31,550 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:31,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:31,574 INFO L130 PetriNetUnfolder]: 1/43 cut-off events. [2022-12-05 20:45:31,575 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:45:31,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-05 20:45:31,578 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:31,578 INFO L188 LiptonReduction]: Number of co-enabled transitions 180 [2022-12-05 20:45:33,358 INFO L203 LiptonReduction]: Total number of compositions: 39 [2022-12-05 20:45:33,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:45:33,371 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;@77df2299, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:45:33,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 20:45:33,373 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-05 20:45:33,373 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:45:33,373 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:45:33,374 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-05 20:45:33,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-05 20:45:33,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:45:33,377 INFO L85 PathProgramCache]: Analyzing trace with hash 218122, now seen corresponding path program 1 times [2022-12-05 20:45:33,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:45:33,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194357967] [2022-12-05 20:45:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:45:33,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:45:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:45:33,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 20:45:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:45:33,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 20:45:33,490 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 20:45:33,490 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 20:45:33,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-05 20:45:33,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-05 20:45:33,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:45:33,492 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-05 20:45:33,497 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:45:33,497 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:45:33,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:45:33 BasicIcfg [2022-12-05 20:45:33,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:45:33,509 INFO L158 Benchmark]: Toolchain (without parser) took 2733.53ms. Allocated memory was 202.4MB in the beginning and 243.3MB in the end (delta: 40.9MB). Free memory was 177.7MB in the beginning and 216.1MB in the end (delta: -38.5MB). Peak memory consumption was 80.0MB. Max. memory is 8.0GB. [2022-12-05 20:45:33,509 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 110.8MB in the beginning and 110.8MB in the end (delta: 46.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:45:33,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.36ms. Allocated memory is still 202.4MB. Free memory was 177.4MB in the beginning and 158.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 20:45:33,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.04ms. Allocated memory is still 202.4MB. Free memory was 158.6MB in the beginning and 156.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:45:33,510 INFO L158 Benchmark]: Boogie Preprocessor took 13.85ms. Allocated memory is still 202.4MB. Free memory was 156.7MB in the beginning and 155.5MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:45:33,510 INFO L158 Benchmark]: RCFGBuilder took 326.25ms. Allocated memory is still 202.4MB. Free memory was 155.3MB in the beginning and 171.9MB in the end (delta: -16.6MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. [2022-12-05 20:45:33,511 INFO L158 Benchmark]: TraceAbstraction took 2088.98ms. Allocated memory was 202.4MB in the beginning and 243.3MB in the end (delta: 40.9MB). Free memory was 170.9MB in the beginning and 216.1MB in the end (delta: -45.2MB). Peak memory consumption was 72.1MB. Max. memory is 8.0GB. [2022-12-05 20:45:33,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 110.8MB in the beginning and 110.8MB in the end (delta: 46.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 272.36ms. Allocated memory is still 202.4MB. Free memory was 177.4MB in the beginning and 158.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.04ms. Allocated memory is still 202.4MB. Free memory was 158.6MB in the beginning and 156.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.85ms. Allocated memory is still 202.4MB. Free memory was 156.7MB in the beginning and 155.5MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 326.25ms. Allocated memory is still 202.4MB. Free memory was 155.3MB in the beginning and 171.9MB in the end (delta: -16.6MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. * TraceAbstraction took 2088.98ms. Allocated memory was 202.4MB in the beginning and 243.3MB in the end (delta: 40.9MB). Free memory was 170.9MB in the beginning and 216.1MB in the end (delta: -45.2MB). Peak memory consumption was 72.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 46 PlacesBefore, 9 PlacesAfterwards, 43 TransitionsBefore, 5 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 18 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 107, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 100, independent: 99, independent conditional: 0, independent unconditional: 99, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 100, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 108, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 100, unknown conditional: 0, unknown unconditional: 100] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 185, Positive conditional cache size: 0, Positive unconditional cache size: 185, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - 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))=-1] [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 == 1)) [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, 79 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: 2.0s, 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! [2022-12-05 20:45:33,527 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...