./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 01:06:00,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 01:06:00,430 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 01:06:00,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 01:06:00,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 01:06:00,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 01:06:00,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 01:06:00,461 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 01:06:00,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 01:06:00,463 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 01:06:00,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 01:06:00,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 01:06:00,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 01:06:00,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 01:06:00,464 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 01:06:00,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 01:06:00,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 01:06:00,465 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 01:06:00,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 01:06:00,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 01:06:00,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 01:06:00,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 01:06:00,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 01:06:00,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 01:06:00,467 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 01:06:00,467 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 01:06:00,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 01:06:00,467 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 01:06:00,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 01:06:00,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 01:06:00,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 01:06:00,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 01:06:00,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:06:00,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 01:06:00,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 01:06:00,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 01:06:00,470 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 01:06:00,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 01:06:00,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 01:06:00,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 01:06:00,470 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 01:06:00,471 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 01:06:00,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 01:06:00,471 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 01:06:00,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 01:06:00,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 01:06:00,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 01:06:00,677 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 01:06:00,677 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 01:06:00,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.yml/witness.yml [2024-06-28 01:06:00,784 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 01:06:00,784 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 01:06:00,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2024-06-28 01:06:01,835 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 01:06:02,089 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 01:06:02,092 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2024-06-28 01:06:02,103 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d36cda4/a3ce3e92e19b4ca18b61a957c1b6d52f/FLAGfe99ac883 [2024-06-28 01:06:02,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d36cda4/a3ce3e92e19b4ca18b61a957c1b6d52f [2024-06-28 01:06:02,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 01:06:02,114 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 01:06:02,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 01:06:02,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 01:06:02,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 01:06:02,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:06:00" (1/2) ... [2024-06-28 01:06:02,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586a2d53 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:06:02, skipping insertion in model container [2024-06-28 01:06:02,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:06:00" (1/2) ... [2024-06-28 01:06:02,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6eb48c34 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:06:02, skipping insertion in model container [2024-06-28 01:06:02,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:06:02" (2/2) ... [2024-06-28 01:06:02,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586a2d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02, skipping insertion in model container [2024-06-28 01:06:02,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:06:02" (2/2) ... [2024-06-28 01:06:02,122 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 01:06:02,154 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 01:06:02,155 INFO L97 edCorrectnessWitness]: Location invariant before [L695-L695] ((! multithreaded || ((g == 0 || g == 17) || g == 42)) && (! multithreaded || (B_locked || ((g == 0 || g == 17) || g == 42)))) && (! multithreaded || (A_locked || ((g == 0 || g == 17) || g == 42))) [2024-06-28 01:06:02,155 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 01:06:02,155 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-28 01:06:02,156 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-28 01:06:02,156 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] A_locked = 0; [2024-06-28 01:06:02,157 INFO L106 edCorrectnessWitness]: ghost_update [L695-L695] A_locked = 1; [2024-06-28 01:06:02,157 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] multithreaded = 1; [2024-06-28 01:06:02,157 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] A_locked = 1; [2024-06-28 01:06:02,157 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] B_locked = 1; [2024-06-28 01:06:02,157 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-06-28 01:06:02,157 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] B_locked = 0; [2024-06-28 01:06:02,158 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] A_locked = 0; [2024-06-28 01:06:02,158 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] B_locked = 1; [2024-06-28 01:06:02,158 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] B_locked = 0; [2024-06-28 01:06:02,158 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 0; [2024-06-28 01:06:02,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 01:06:02,321 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2024-06-28 01:06:02,480 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:06:02,490 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:06:02,522 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:06:02,575 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:06:02,605 INFO L206 MainTranslator]: Completed translation [2024-06-28 01:06:02,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02 WrapperNode [2024-06-28 01:06:02,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 01:06:02,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 01:06:02,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 01:06:02,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 01:06:02,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,635 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-06-28 01:06:02,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 01:06:02,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 01:06:02,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 01:06:02,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 01:06:02,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,658 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-28 01:06:02,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,662 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 01:06:02,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 01:06:02,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 01:06:02,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 01:06:02,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (1/1) ... [2024-06-28 01:06:02,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:06:02,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:06:02,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-28 01:06:02,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-28 01:06:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-28 01:06:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 01:06:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-28 01:06:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-28 01:06:02,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 01:06:02,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-28 01:06:02,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-28 01:06:02,741 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-28 01:06:02,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 01:06:02,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 01:06:02,742 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 01:06:02,834 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 01:06:02,835 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 01:06:02,949 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 01:06:02,949 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 01:06:03,028 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 01:06:03,029 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 01:06:03,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:06:03 BoogieIcfgContainer [2024-06-28 01:06:03,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 01:06:03,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 01:06:03,031 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 01:06:03,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 01:06:03,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:06:00" (1/4) ... [2024-06-28 01:06:03,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c87b438 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:06:03, skipping insertion in model container [2024-06-28 01:06:03,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 01:06:02" (2/4) ... [2024-06-28 01:06:03,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c87b438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:06:03, skipping insertion in model container [2024-06-28 01:06:03,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:06:02" (3/4) ... [2024-06-28 01:06:03,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c87b438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:06:03, skipping insertion in model container [2024-06-28 01:06:03,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:06:03" (4/4) ... [2024-06-28 01:06:03,036 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2024-06-28 01:06:03,049 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 01:06:03,049 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-28 01:06:03,049 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 01:06:03,070 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-28 01:06:03,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 70 flow [2024-06-28 01:06:03,131 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-06-28 01:06:03,132 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:06:03,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 1/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-06-28 01:06:03,134 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 33 transitions, 70 flow [2024-06-28 01:06:03,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 25 transitions, 53 flow [2024-06-28 01:06:03,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 01:06:03,149 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=LoopHeads, 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;@7dc4bd00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 01:06:03,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-06-28 01:06:03,156 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 01:06:03,156 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-28 01:06:03,157 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:06:03,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:06:03,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 01:06:03,158 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:06:03,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:06:03,162 INFO L85 PathProgramCache]: Analyzing trace with hash 213181018, now seen corresponding path program 1 times [2024-06-28 01:06:03,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:06:03,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816583313] [2024-06-28 01:06:03,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:06:03,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:06:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:06:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:06:03,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:06:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816583313] [2024-06-28 01:06:03,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816583313] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:06:03,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:06:03,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:06:03,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346074946] [2024-06-28 01:06:03,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:06:03,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:06:03,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:06:03,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:06:03,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:06:03,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-06-28 01:06:03,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-06-28 01:06:03,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:06:03,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-06-28 01:06:03,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:06:03,465 INFO L124 PetriNetUnfolderBase]: 45/140 cut-off events. [2024-06-28 01:06:03,465 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-28 01:06:03,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 140 events. 45/140 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 488 event pairs, 21 based on Foata normal form. 3/141 useless extension candidates. Maximal degree in co-relation 241. Up to 88 conditions per place. [2024-06-28 01:06:03,467 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 20 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2024-06-28 01:06:03,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 32 transitions, 113 flow [2024-06-28 01:06:03,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:06:03,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:06:03,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-06-28 01:06:03,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-06-28 01:06:03,477 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 53 flow. Second operand 3 states and 60 transitions. [2024-06-28 01:06:03,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 32 transitions, 113 flow [2024-06-28 01:06:03,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 32 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:06:03,481 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 71 flow [2024-06-28 01:06:03,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2024-06-28 01:06:03,484 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-06-28 01:06:03,485 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 71 flow [2024-06-28 01:06:03,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-06-28 01:06:03,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:06:03,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:06:03,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 01:06:03,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:06:03,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:06:03,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1937739823, now seen corresponding path program 1 times [2024-06-28 01:06:03,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:06:03,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134894051] [2024-06-28 01:06:03,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:06:03,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:06:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:06:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:06:03,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:06:03,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134894051] [2024-06-28 01:06:03,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134894051] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:06:03,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:06:03,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:06:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861055926] [2024-06-28 01:06:03,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:06:03,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:06:03,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:06:03,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:06:03,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:06:03,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-06-28 01:06:03,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-06-28 01:06:03,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:06:03,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-06-28 01:06:03,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:06:03,593 INFO L124 PetriNetUnfolderBase]: 50/161 cut-off events. [2024-06-28 01:06:03,593 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-06-28 01:06:03,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 161 events. 50/161 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 632 event pairs, 14 based on Foata normal form. 4/164 useless extension candidates. Maximal degree in co-relation 301. Up to 68 conditions per place. [2024-06-28 01:06:03,595 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 23 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2024-06-28 01:06:03,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 35 transitions, 137 flow [2024-06-28 01:06:03,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:06:03,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:06:03,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-06-28 01:06:03,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2024-06-28 01:06:03,596 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 71 flow. Second operand 3 states and 62 transitions. [2024-06-28 01:06:03,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 35 transitions, 137 flow [2024-06-28 01:06:03,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:06:03,598 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 70 flow [2024-06-28 01:06:03,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2024-06-28 01:06:03,598 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-06-28 01:06:03,598 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 70 flow [2024-06-28 01:06:03,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-06-28 01:06:03,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:06:03,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:06:03,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 01:06:03,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:06:03,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:06:03,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1977068666, now seen corresponding path program 1 times [2024-06-28 01:06:03,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:06:03,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065544814] [2024-06-28 01:06:03,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:06:03,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:06:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:06:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:06:03,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:06:03,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065544814] [2024-06-28 01:06:03,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065544814] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:06:03,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:06:03,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:06:03,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142136214] [2024-06-28 01:06:03,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:06:03,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:06:03,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:06:03,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:06:03,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:06:03,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-28 01:06:03,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-06-28 01:06:03,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:06:03,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-28 01:06:03,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:06:03,765 INFO L124 PetriNetUnfolderBase]: 52/161 cut-off events. [2024-06-28 01:06:03,765 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-06-28 01:06:03,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 161 events. 52/161 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 620 event pairs, 24 based on Foata normal form. 11/171 useless extension candidates. Maximal degree in co-relation 316. Up to 82 conditions per place. [2024-06-28 01:06:03,766 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 18 selfloop transitions, 2 changer transitions 15/43 dead transitions. [2024-06-28 01:06:03,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 178 flow [2024-06-28 01:06:03,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:06:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:06:03,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2024-06-28 01:06:03,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5212121212121212 [2024-06-28 01:06:03,768 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 70 flow. Second operand 5 states and 86 transitions. [2024-06-28 01:06:03,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 178 flow [2024-06-28 01:06:03,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 172 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-28 01:06:03,770 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 69 flow [2024-06-28 01:06:03,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=69, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2024-06-28 01:06:03,771 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-06-28 01:06:03,771 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 69 flow [2024-06-28 01:06:03,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-06-28 01:06:03,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:06:03,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:06:03,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 01:06:03,773 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:06:03,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:06:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2010956255, now seen corresponding path program 1 times [2024-06-28 01:06:03,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:06:03,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351451621] [2024-06-28 01:06:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:06:03,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:06:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:06:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:06:03,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:06:03,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351451621] [2024-06-28 01:06:03,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351451621] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:06:03,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:06:03,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:06:03,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662700607] [2024-06-28 01:06:03,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:06:03,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:06:03,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:06:03,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:06:03,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:06:03,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-06-28 01:06:03,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-06-28 01:06:03,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:06:03,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-06-28 01:06:03,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:06:03,962 INFO L124 PetriNetUnfolderBase]: 15/60 cut-off events. [2024-06-28 01:06:03,962 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-06-28 01:06:03,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 60 events. 15/60 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 113 event pairs, 6 based on Foata normal form. 4/63 useless extension candidates. Maximal degree in co-relation 123. Up to 28 conditions per place. [2024-06-28 01:06:03,963 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 14 selfloop transitions, 4 changer transitions 1/28 dead transitions. [2024-06-28 01:06:03,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 117 flow [2024-06-28 01:06:03,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:06:03,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:06:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-06-28 01:06:03,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-06-28 01:06:03,966 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 69 flow. Second operand 3 states and 60 transitions. [2024-06-28 01:06:03,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 117 flow [2024-06-28 01:06:03,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 105 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-06-28 01:06:03,968 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 65 flow [2024-06-28 01:06:03,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2024-06-28 01:06:03,970 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2024-06-28 01:06:03,970 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 65 flow [2024-06-28 01:06:03,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-06-28 01:06:03,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:06:03,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:06:03,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 01:06:03,971 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:06:03,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:06:03,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2043929345, now seen corresponding path program 2 times [2024-06-28 01:06:03,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:06:03,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446959849] [2024-06-28 01:06:03,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:06:03,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:06:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:06:04,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:06:04,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:06:04,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446959849] [2024-06-28 01:06:04,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446959849] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:06:04,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:06:04,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:06:04,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88404016] [2024-06-28 01:06:04,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:06:04,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:06:04,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:06:04,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:06:04,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:06:04,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-06-28 01:06:04,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 65 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2024-06-28 01:06:04,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:06:04,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-06-28 01:06:04,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:06:04,140 INFO L124 PetriNetUnfolderBase]: 5/42 cut-off events. [2024-06-28 01:06:04,141 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-28 01:06:04,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 42 events. 5/42 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 8/50 useless extension candidates. Maximal degree in co-relation 77. Up to 21 conditions per place. [2024-06-28 01:06:04,143 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 10 selfloop transitions, 6 changer transitions 2/27 dead transitions. [2024-06-28 01:06:04,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 109 flow [2024-06-28 01:06:04,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:06:04,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:06:04,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-06-28 01:06:04,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2024-06-28 01:06:04,148 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 65 flow. Second operand 4 states and 73 transitions. [2024-06-28 01:06:04,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 109 flow [2024-06-28 01:06:04,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:06:04,149 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 73 flow [2024-06-28 01:06:04,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2024-06-28 01:06:04,151 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 5 predicate places. [2024-06-28 01:06:04,151 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 73 flow [2024-06-28 01:06:04,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2024-06-28 01:06:04,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:06:04,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:06:04,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 01:06:04,152 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:06:04,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:06:04,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1834130294, now seen corresponding path program 1 times [2024-06-28 01:06:04,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:06:04,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141292407] [2024-06-28 01:06:04,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:06:04,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:06:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:06:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:06:04,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:06:04,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141292407] [2024-06-28 01:06:04,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141292407] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:06:04,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:06:04,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:06:04,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339221814] [2024-06-28 01:06:04,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:06:04,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:06:04,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:06:04,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:06:04,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:06:04,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-06-28 01:06:04,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-06-28 01:06:04,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:06:04,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-06-28 01:06:04,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:06:04,318 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2024-06-28 01:06:04,319 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-06-28 01:06:04,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 26 events. 3/26 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 1 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 47. Up to 11 conditions per place. [2024-06-28 01:06:04,319 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-06-28 01:06:04,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2024-06-28 01:06:04,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:06:04,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:06:04,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 74 transitions. [2024-06-28 01:06:04,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4484848484848485 [2024-06-28 01:06:04,321 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 73 flow. Second operand 5 states and 74 transitions. [2024-06-28 01:06:04,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2024-06-28 01:06:04,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-28 01:06:04,321 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2024-06-28 01:06:04,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2024-06-28 01:06:04,322 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -3 predicate places. [2024-06-28 01:06:04,322 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2024-06-28 01:06:04,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-06-28 01:06:04,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-06-28 01:06:04,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-06-28 01:06:04,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-06-28 01:06:04,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 01:06:04,326 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-06-28 01:06:04,328 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 01:06:04,328 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 01:06:04,331 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-28 01:06:04,331 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-28 01:06:04,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 01:06:04 BasicIcfg [2024-06-28 01:06:04,332 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 01:06:04,333 INFO L158 Benchmark]: Toolchain (without parser) took 2218.68ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 113.3MB in the beginning and 136.2MB in the end (delta: -22.8MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2024-06-28 01:06:04,333 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:06:04,333 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:06:04,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.87ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 87.1MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-28 01:06:04,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.23ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 85.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 01:06:04,334 INFO L158 Benchmark]: Boogie Preprocessor took 28.90ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 01:06:04,335 INFO L158 Benchmark]: RCFGBuilder took 362.32ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 56.3MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-28 01:06:04,335 INFO L158 Benchmark]: TraceAbstraction took 1302.01ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 55.3MB in the beginning and 136.2MB in the end (delta: -80.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:06:04,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.87ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 87.1MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.23ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 85.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.90ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.32ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 56.3MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1302.01ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 55.3MB in the beginning and 136.2MB in the end (delta: -80.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 44 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 233 IncrementalHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 7 mSDtfsCounter, 233 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=5, InterpolantAutomatonStates: 23, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-28 01:06:04,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE