/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 --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 19:01:24,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 19:01:24,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 19:01:24,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 19:01:24,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 19:01:24,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 19:01:24,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 19:01:24,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 19:01:24,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 19:01:24,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 19:01:24,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 19:01:24,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 19:01:24,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 19:01:24,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 19:01:24,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 19:01:24,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 19:01:24,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 19:01:24,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 19:01:24,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 19:01:24,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 19:01:24,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 19:01:24,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 19:01:24,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 19:01:24,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 19:01:24,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 19:01:24,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 19:01:24,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 19:01:24,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 19:01:24,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 19:01:24,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-12 19:01:24,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 19:01:24,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 19:01:24,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 19:01:24,614 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 [2022-12-12 19:01:24,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 19:01:24,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 19:01:24,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 19:01:24,631 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 19:01:24,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 19:01:24,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 19:01:24,632 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 19:01:24,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 19:01:24,632 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 19:01:24,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 19:01:24,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 19:01:24,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 19:01:24,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 19:01:24,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 19:01:24,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 19:01:24,633 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 19:01:24,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 19:01:24,633 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 19:01:24,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 19:01:24,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 19:01:24,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 19:01:24,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 19:01:24,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 19:01:24,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:01:24,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 19:01:24,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 19:01:24,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 19:01:24,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 19:01:24,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 19:01:24,635 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 19:01:24,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 19:01:24,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 19:01:24,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 19:01:24,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 19:01:24,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 19:01:24,918 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 19:01:24,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2022-12-12 19:01:25,865 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 19:01:26,097 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 19:01:26,098 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2022-12-12 19:01:26,112 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d753b19/6e863b9ec4ae41eebae43ed53dc62fd5/FLAG757bec52f [2022-12-12 19:01:26,122 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d753b19/6e863b9ec4ae41eebae43ed53dc62fd5 [2022-12-12 19:01:26,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 19:01:26,125 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 19:01:26,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 19:01:26,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 19:01:26,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 19:01:26,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d835124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26, skipping insertion in model container [2022-12-12 19:01:26,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 19:01:26,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 19:01:26,266 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_1_pos.i[1097,1110] [2022-12-12 19:01:26,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:01:26,389 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 19:01:26,402 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_1_pos.i[1097,1110] [2022-12-12 19:01:26,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:01:26,477 INFO L208 MainTranslator]: Completed translation [2022-12-12 19:01:26,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26 WrapperNode [2022-12-12 19:01:26,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 19:01:26,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 19:01:26,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 19:01:26,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 19:01:26,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,539 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-12 19:01:26,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 19:01:26,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 19:01:26,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 19:01:26,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 19:01:26,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,570 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 19:01:26,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 19:01:26,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 19:01:26,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 19:01:26,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (1/1) ... [2022-12-12 19:01:26,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:01:26,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 19:01:26,620 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) [2022-12-12 19:01:26,666 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 [2022-12-12 19:01:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 19:01:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 19:01:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 19:01:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 19:01:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 19:01:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 19:01:26,683 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 19:01:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 19:01:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 19:01:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 19:01:26,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 19:01:26,684 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 19:01:26,838 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 19:01:26,840 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 19:01:26,948 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 19:01:26,953 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 19:01:26,953 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 19:01:26,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:01:26 BoogieIcfgContainer [2022-12-12 19:01:26,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 19:01:26,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 19:01:26,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 19:01:26,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 19:01:26,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 07:01:26" (1/3) ... [2022-12-12 19:01:26,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cb8059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:01:26, skipping insertion in model container [2022-12-12 19:01:26,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:26" (2/3) ... [2022-12-12 19:01:26,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cb8059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:01:26, skipping insertion in model container [2022-12-12 19:01:26,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:01:26" (3/3) ... [2022-12-12 19:01:26,960 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2022-12-12 19:01:26,974 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 19:01:26,974 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 19:01:26,975 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 19:01:27,012 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-12 19:01:27,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-12 19:01:27,059 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-12 19:01:27,059 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 19:01:27,062 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. [2022-12-12 19:01:27,062 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-12 19:01:27,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-12 19:01:27,065 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 19:01:27,093 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-12 19:01:27,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 89 flow [2022-12-12 19:01:27,106 INFO L130 PetriNetUnfolder]: 1/43 cut-off events. [2022-12-12 19:01:27,106 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:01:27,106 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. [2022-12-12 19:01:27,108 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-12 19:01:27,108 INFO L226 LiptonReduction]: Number of co-enabled transitions 180 [2022-12-12 19:01:28,888 INFO L241 LiptonReduction]: Total number of compositions: 39 [2022-12-12 19:01:28,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 19:01:28,902 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;@30f6c009, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 19:01:28,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-12 19:01:28,904 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-12 19:01:28,904 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:01:28,904 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:01:28,905 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 19:01:28,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-12 19:01:28,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:01:28,908 INFO L85 PathProgramCache]: Analyzing trace with hash 221970, now seen corresponding path program 1 times [2022-12-12 19:01:28,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:01:28,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982829102] [2022-12-12 19:01:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:01:28,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:01:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 19:01:28,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 19:01:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 19:01:29,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 19:01:29,023 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 19:01:29,024 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-12 19:01:29,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-12 19:01:29,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-12 19:01:29,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 19:01:29,025 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-12 19:01:29,030 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 19:01:29,030 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 19:01:29,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 07:01:29 BasicIcfg [2022-12-12 19:01:29,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 19:01:29,054 INFO L158 Benchmark]: Toolchain (without parser) took 2928.99ms. Allocated memory was 198.2MB in the beginning and 257.9MB in the end (delta: 59.8MB). Free memory was 172.6MB in the beginning and 234.2MB in the end (delta: -61.5MB). Peak memory consumption was 132.4MB. Max. memory is 8.0GB. [2022-12-12 19:01:29,054 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 174.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 19:01:29,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.66ms. Allocated memory is still 198.2MB. Free memory was 172.1MB in the beginning and 153.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 19:01:29,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.59ms. Allocated memory is still 198.2MB. Free memory was 153.2MB in the beginning and 151.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 19:01:29,055 INFO L158 Benchmark]: Boogie Preprocessor took 32.54ms. Allocated memory is still 198.2MB. Free memory was 151.7MB in the beginning and 150.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 19:01:29,055 INFO L158 Benchmark]: RCFGBuilder took 381.07ms. Allocated memory is still 198.2MB. Free memory was 150.1MB in the beginning and 137.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 19:01:29,056 INFO L158 Benchmark]: TraceAbstraction took 2096.80ms. Allocated memory was 198.2MB in the beginning and 257.9MB in the end (delta: 59.8MB). Free memory was 136.5MB in the beginning and 234.2MB in the end (delta: -97.7MB). Peak memory consumption was 96.8MB. Max. memory is 8.0GB. [2022-12-12 19:01:29,059 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 198.2MB. Free memory is still 174.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 354.66ms. Allocated memory is still 198.2MB. Free memory was 172.1MB in the beginning and 153.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.59ms. Allocated memory is still 198.2MB. Free memory was 153.2MB in the beginning and 151.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.54ms. Allocated memory is still 198.2MB. Free memory was 151.7MB in the beginning and 150.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 381.07ms. Allocated memory is still 198.2MB. Free memory was 150.1MB in the beginning and 137.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2096.80ms. Allocated memory was 198.2MB in the beginning and 257.9MB in the end (delta: 59.8MB). Free memory was 136.5MB in the beginning and 234.2MB in the end (delta: -97.7MB). Peak memory consumption was 96.8MB. 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, 13 PlacesAfterwards, 43 TransitionsBefore, 9 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 18 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 198, independent: 197, independent conditional: 197, 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: 198, independent: 197, independent conditional: 0, independent unconditional: 197, 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: 198, independent: 197, independent conditional: 0, independent unconditional: 197, 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: 198, independent: 197, independent conditional: 0, independent unconditional: 197, 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: 141, independent: 140, independent conditional: 0, independent unconditional: 140, 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: 141, independent: 127, independent conditional: 0, independent unconditional: 127, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 198, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 141, unknown conditional: 0, unknown unconditional: 141] , Statistics on independence cache: Total cache size (in pairs): 314, Positive cache size: 313, Positive conditional cache size: 0, Positive unconditional cache size: 313, 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 == 0) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 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=21occurred 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! [2022-12-12 19:01:29,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...