/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_AUTOMATON -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-09 23:16:58,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 23:16:58,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2024-02-09 23:16:58,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 23:16:58,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 23:16:58,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-09 23:16:58,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 23:16:58,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 23:16:58,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 23:16:58,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 23:16:58,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 23:16:58,760 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 23:16:58,760 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 23:16:58,761 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 23:16:58,761 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 23:16:58,761 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 23:16:58,761 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 23:16:58,762 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 23:16:58,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 23:16:58,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 23:16:58,762 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-09 23:16:58,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 23:16:58,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-09 23:16:58,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 23:16:58,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 23:16:58,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 23:16:58,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 23:16:58,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 23:16:58,766 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-09 23:16:58,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 23:16:58,767 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 23:16:58,767 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 23:16:58,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 23:16:58,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 23:16:58,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 23:16:58,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 23:16:58,768 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-09 23:16:58,769 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 23:16:58,769 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2024-02-09 23:16:59,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 23:16:59,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 23:16:59,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 23:16:59,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-09 23:16:59,062 INFO L274 PluginConnector]: CDTParser initialized [2024-02-09 23:16:59,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2024-02-09 23:17:00,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-09 23:17:00,418 INFO L384 CDTParser]: Found 1 translation units. [2024-02-09 23:17:00,419 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2024-02-09 23:17:00,426 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada1ad4bc/96e858cf35094777b3cdee8e11857182/FLAG98e557fc2 [2024-02-09 23:17:00,443 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada1ad4bc/96e858cf35094777b3cdee8e11857182 [2024-02-09 23:17:00,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 23:17:00,449 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-09 23:17:00,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-09 23:17:00,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-09 23:17:00,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-09 23:17:00,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ad2874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00, skipping insertion in model container [2024-02-09 23:17:00,461 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,492 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-09 23:17:00,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-09 23:17:00,701 INFO L202 MainTranslator]: Completed pre-run [2024-02-09 23:17:00,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-09 23:17:00,736 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2024-02-09 23:17:00,736 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2024-02-09 23:17:00,742 INFO L206 MainTranslator]: Completed translation [2024-02-09 23:17:00,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00 WrapperNode [2024-02-09 23:17:00,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-09 23:17:00,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 23:17:00,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 23:17:00,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 23:17:00,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,779 INFO L138 Inliner]: procedures = 26, calls = 116, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 320 [2024-02-09 23:17:00,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 23:17:00,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 23:17:00,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 23:17:00,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 23:17:00,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 23:17:00,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 23:17:00,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 23:17:00,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 23:17:00,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (1/1) ... [2024-02-09 23:17:00,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:17:00,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:17:00,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:17:00,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-02-09 23:17:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-09 23:17:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-09 23:17:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-02-09 23:17:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-02-09 23:17:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-09 23:17:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-09 23:17:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-09 23:17:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-09 23:17:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-09 23:17:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-09 23:17:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-09 23:17:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-09 23:17:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-02-09 23:17:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-02-09 23:17:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-02-09 23:17:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-02-09 23:17:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-02-09 23:17:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2024-02-09 23:17:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2024-02-09 23:17:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-09 23:17:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-09 23:17:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 23:17:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 23:17:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-09 23:17:00,904 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-09 23:17:01,032 INFO L236 CfgBuilder]: Building ICFG [2024-02-09 23:17:01,034 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 23:17:01,307 INFO L277 CfgBuilder]: Performing block encoding [2024-02-09 23:17:01,395 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 23:17:01,395 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-09 23:17:01,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:17:01 BoogieIcfgContainer [2024-02-09 23:17:01,397 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 23:17:01,398 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 23:17:01,398 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 23:17:01,401 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 23:17:01,401 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:17:01,401 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.02 11:17:00" (1/3) ... [2024-02-09 23:17:01,402 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@709deff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:17:01, skipping insertion in model container [2024-02-09 23:17:01,402 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:17:01,402 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:17:00" (2/3) ... [2024-02-09 23:17:01,402 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@709deff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:17:01, skipping insertion in model container [2024-02-09 23:17:01,402 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:17:01,402 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:17:01" (3/3) ... [2024-02-09 23:17:01,403 INFO L332 chiAutomizerObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2024-02-09 23:17:01,502 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2024-02-09 23:17:01,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 217 transitions, 483 flow [2024-02-09 23:17:01,615 INFO L124 PetriNetUnfolderBase]: 2/203 cut-off events. [2024-02-09 23:17:01,615 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-02-09 23:17:01,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 203 events. 2/203 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 89 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2024-02-09 23:17:01,619 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 217 transitions, 483 flow [2024-02-09 23:17:01,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 203 transitions, 448 flow [2024-02-09 23:17:01,635 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 23:17:01,636 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 23:17:01,636 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 23:17:01,636 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 23:17:01,636 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 23:17:01,636 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 23:17:01,636 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 23:17:01,636 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-02-09 23:17:01,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states