/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_58-singlethreaded-lock_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 15:01:50,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 15:01:50,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 15:01:50,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 15:01:50,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 15:01:50,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 15:01:50,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 15:01:50,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 15:01:50,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 15:01:50,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 15:01:50,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 15:01:50,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 15:01:50,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 15:01:50,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 15:01:50,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 15:01:50,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 15:01:50,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 15:01:50,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 15:01:50,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 15:01:50,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 15:01:50,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 15:01:50,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 15:01:50,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 15:01:50,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 15:01:50,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-12 15:01:50,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 15:01:50,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 15:01:50,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 15:01:50,985 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 15:01:51,018 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 15:01:51,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 15:01:51,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 15:01:51,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 15:01:51,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 15:01:51,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 15:01:51,021 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 15:01:51,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 15:01:51,021 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 15:01:51,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 15:01:51,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 15:01:51,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 15:01:51,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 15:01:51,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 15:01:51,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 15:01:51,042 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 15:01:51,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 15:01:51,042 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 15:01:51,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 15:01:51,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 15:01:51,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 15:01:51,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 15:01:51,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 15:01:51,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:01:51,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 15:01:51,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 15:01:51,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 15:01:51,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 15:01:51,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 15:01:51,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 15:01:51,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 15:01:51,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 15:01:51,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 15:01:51,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 15:01:51,360 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 15:01:51,360 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 15:01:51,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_58-singlethreaded-lock_true.i [2022-12-12 15:01:52,472 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 15:01:52,773 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 15:01:52,773 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_58-singlethreaded-lock_true.i [2022-12-12 15:01:52,782 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cfca5b29/78956d5b2c9d4922905c7593716dd1dc/FLAG66e3b1221 [2022-12-12 15:01:52,794 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cfca5b29/78956d5b2c9d4922905c7593716dd1dc [2022-12-12 15:01:52,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 15:01:52,798 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 15:01:52,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 15:01:52,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 15:01:52,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 15:01:52,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:01:52" (1/1) ... [2022-12-12 15:01:52,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3ab95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:52, skipping insertion in model container [2022-12-12 15:01:52,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:01:52" (1/1) ... [2022-12-12 15:01:52,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 15:01:52,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 15:01:52,970 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_58-singlethreaded-lock_true.i[1096,1109] [2022-12-12 15:01:53,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:01:53,119 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 15:01:53,132 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_58-singlethreaded-lock_true.i[1096,1109] [2022-12-12 15:01:53,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:01:53,209 INFO L208 MainTranslator]: Completed translation [2022-12-12 15:01:53,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53 WrapperNode [2022-12-12 15:01:53,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 15:01:53,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 15:01:53,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 15:01:53,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 15:01:53,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,251 INFO L138 Inliner]: procedures = 162, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-12-12 15:01:53,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 15:01:53,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 15:01:53,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 15:01:53,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 15:01:53,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,278 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 15:01:53,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 15:01:53,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 15:01:53,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 15:01:53,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (1/1) ... [2022-12-12 15:01:53,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:01:53,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:01:53,309 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 15:01:53,312 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 15:01:53,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 15:01:53,339 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 15:01:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 15:01:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 15:01:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 15:01:53,340 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 15:01:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 15:01:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 15:01:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 15:01:53,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 15:01:53,341 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 15:01:53,437 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 15:01:53,438 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 15:01:53,524 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 15:01:53,530 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 15:01:53,530 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 15:01:53,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:01:53 BoogieIcfgContainer [2022-12-12 15:01:53,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 15:01:53,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 15:01:53,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 15:01:53,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 15:01:53,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 03:01:52" (1/3) ... [2022-12-12 15:01:53,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca8a7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:01:53, skipping insertion in model container [2022-12-12 15:01:53,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:53" (2/3) ... [2022-12-12 15:01:53,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca8a7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:01:53, skipping insertion in model container [2022-12-12 15:01:53,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:01:53" (3/3) ... [2022-12-12 15:01:53,538 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_58-singlethreaded-lock_true.i [2022-12-12 15:01:53,554 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 15:01:53,554 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 15:01:53,554 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 15:01:53,584 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 15:01:53,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 103 flow [2022-12-12 15:01:53,656 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-12-12 15:01:53,656 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:53,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2022-12-12 15:01:53,659 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 49 transitions, 103 flow [2022-12-12 15:01:53,663 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 40 transitions, 83 flow [2022-12-12 15:01:53,664 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 15:01:53,679 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 40 transitions, 83 flow [2022-12-12 15:01:53,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 40 transitions, 83 flow [2022-12-12 15:01:53,713 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-12-12 15:01:53,713 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:53,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 40 events. 0/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-12 15:01:53,715 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 40 transitions, 83 flow [2022-12-12 15:01:53,715 INFO L226 LiptonReduction]: Number of co-enabled transitions 48 [2022-12-12 15:01:55,961 INFO L241 LiptonReduction]: Total number of compositions: 36 [2022-12-12 15:01:55,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 15:01:55,979 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;@7b0624a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 15:01:55,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-12 15:01:55,982 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-12-12 15:01:55,982 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:55,982 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:01:55,982 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 15:01:55,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 15:01:55,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:01:55,987 INFO L85 PathProgramCache]: Analyzing trace with hash 171625, now seen corresponding path program 1 times [2022-12-12 15:01:55,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:01:55,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795223438] [2022-12-12 15:01:55,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:56,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:01:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:56,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:01:56,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:01:56,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795223438] [2022-12-12 15:01:56,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795223438] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:01:56,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:01:56,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 15:01:56,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052864226] [2022-12-12 15:01:56,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:01:56,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 15:01:56,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:01:56,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 15:01:56,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 15:01:56,183 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 6 [2022-12-12 15:01:56,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 6 transitions, 15 flow. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:01:56,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:01:56,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 6 [2022-12-12 15:01:56,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:01:56,207 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-12 15:01:56,208 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:56,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 5 events. 0/5 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 3 event pairs, 0 based on Foata normal form. 3/7 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-12-12 15:01:56,209 INFO L137 encePairwiseOnDemand]: 5/6 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2022-12-12 15:01:56,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 5 transitions, 21 flow [2022-12-12 15:01:56,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 15:01:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 15:01:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2022-12-12 15:01:56,219 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-12 15:01:56,220 INFO L175 Difference]: Start difference. First operand has 10 places, 6 transitions, 15 flow. Second operand 2 states and 7 transitions. [2022-12-12 15:01:56,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 5 transitions, 21 flow [2022-12-12 15:01:56,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 5 transitions, 20 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 15:01:56,224 INFO L231 Difference]: Finished difference. Result has 9 places, 0 transitions, 0 flow [2022-12-12 15:01:56,225 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=6, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=9, PETRI_TRANSITIONS=0} [2022-12-12 15:01:56,230 INFO L295 CegarLoopForPetriNet]: 10 programPoint places, -1 predicate places. [2022-12-12 15:01:56,230 INFO L495 AbstractCegarLoop]: Abstraction has has 9 places, 0 transitions, 0 flow [2022-12-12 15:01:56,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:01:56,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-12 15:01:56,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-12 15:01:56,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 15:01:56,234 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-12 15:01:56,244 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 15:01:56,245 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 15:01:56,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 03:01:56 BasicIcfg [2022-12-12 15:01:56,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 15:01:56,254 INFO L158 Benchmark]: Toolchain (without parser) took 3455.84ms. Allocated memory was 212.9MB in the beginning and 320.9MB in the end (delta: 108.0MB). Free memory was 187.0MB in the beginning and 214.4MB in the end (delta: -27.4MB). Peak memory consumption was 79.8MB. Max. memory is 8.0GB. [2022-12-12 15:01:56,254 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 212.9MB. Free memory was 190.7MB in the beginning and 190.2MB in the end (delta: 452.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 15:01:56,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.44ms. Allocated memory is still 212.9MB. Free memory was 186.8MB in the beginning and 168.4MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-12 15:01:56,258 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.82ms. Allocated memory is still 212.9MB. Free memory was 168.1MB in the beginning and 166.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 15:01:56,259 INFO L158 Benchmark]: Boogie Preprocessor took 28.83ms. Allocated memory is still 212.9MB. Free memory was 166.4MB in the beginning and 165.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 15:01:56,259 INFO L158 Benchmark]: RCFGBuilder took 251.02ms. Allocated memory is still 212.9MB. Free memory was 165.0MB in the beginning and 153.4MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-12 15:01:56,262 INFO L158 Benchmark]: TraceAbstraction took 2719.64ms. Allocated memory was 212.9MB in the beginning and 320.9MB in the end (delta: 108.0MB). Free memory was 152.4MB in the beginning and 214.4MB in the end (delta: -62.0MB). Peak memory consumption was 45.2MB. Max. memory is 8.0GB. [2022-12-12 15:01:56,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 212.9MB. Free memory was 190.7MB in the beginning and 190.2MB in the end (delta: 452.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 409.44ms. Allocated memory is still 212.9MB. Free memory was 186.8MB in the beginning and 168.4MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.82ms. Allocated memory is still 212.9MB. Free memory was 168.1MB in the beginning and 166.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.83ms. Allocated memory is still 212.9MB. Free memory was 166.4MB in the beginning and 165.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 251.02ms. Allocated memory is still 212.9MB. Free memory was 165.0MB in the beginning and 153.4MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2719.64ms. Allocated memory was 212.9MB in the beginning and 320.9MB in the end (delta: 108.0MB). Free memory was 152.4MB in the beginning and 214.4MB in the end (delta: -62.0MB). Peak memory consumption was 45.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 44 PlacesBefore, 10 PlacesAfterwards, 40 TransitionsBefore, 6 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 9 ConcurrentYvCompositions, 0 ChoiceCompositions, 36 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, independent: 29, independent conditional: 29, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 29, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 29, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 29, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 54 locations, 2 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: 2.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 15:01:56,284 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...