./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_30-traces-oplus-vs-meet_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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_30-traces-oplus-vs-meet_true.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_30-traces-oplus-vs-meet_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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 14:14:00,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:14:01,023 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:14:01,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:14:01,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:14:01,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:14:01,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:14:01,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:14:01,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:14:01,059 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:14:01,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:14:01,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:14:01,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:14:01,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:14:01,063 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:14:01,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:14:01,064 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:14:01,064 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:14:01,064 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:14:01,064 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:14:01,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:14:01,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:14:01,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:14:01,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:14:01,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:14:01,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:14:01,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:14:01,068 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:14:01,068 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:14:01,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:14:01,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:14:01,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:14:01,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:14:01,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:14:01,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:14:01,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:14:01,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:14:01,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:14:01,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:14:01,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:14:01,072 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:14:01,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:14:01,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:14:01,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:14:01,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:14:01,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:14:01,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:14:01,404 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:14:01,404 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:14:01,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_30-traces-oplus-vs-meet_true.yml/witness.yml [2024-06-14 14:14:01,531 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:14:01,531 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:14:01,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2024-06-14 14:14:02,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:14:02,926 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:14:02,930 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2024-06-14 14:14:02,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b313bb3/83f22a1d9a1847608d07d6cb75d07d40/FLAGf45d3233e [2024-06-14 14:14:02,973 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b313bb3/83f22a1d9a1847608d07d6cb75d07d40 [2024-06-14 14:14:02,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:14:02,976 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:14:02,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:14:02,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:14:02,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:14:02,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:14:01" (1/2) ... [2024-06-14 14:14:02,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af9a00b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:14:02, skipping insertion in model container [2024-06-14 14:14:02,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:14:01" (1/2) ... [2024-06-14 14:14:02,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42cfe89f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:14:02, skipping insertion in model container [2024-06-14 14:14:02,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:14:02" (2/2) ... [2024-06-14 14:14:02,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af9a00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:02, skipping insertion in model container [2024-06-14 14:14:02,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:14:02" (2/2) ... [2024-06-14 14:14:02,989 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:14:03,026 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:14:03,027 INFO L97 edCorrectnessWitness]: Location invariant before [L699-L699] ((! multithreaded || ((((0 <= g && g <= 5) && g <= 127) && g % 5 == 0) && (g == 0 || g == 5))) && (! multithreaded || (B_locked || ((((0 <= g && g <= 5) && g <= 127) && g % 5 == 0) && (g == 0 || g == 5))))) && (! multithreaded || (A_locked || g == 0)) [2024-06-14 14:14:03,027 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-14 14:14:03,028 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-14 14:14:03,028 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:14:03,028 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] B_locked = 0; [2024-06-14 14:14:03,029 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] B_locked = 1; [2024-06-14 14:14:03,029 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] A_locked = 0; [2024-06-14 14:14:03,029 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] A_locked = 1; [2024-06-14 14:14:03,029 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] B_locked = 0; [2024-06-14 14:14:03,029 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-06-14 14:14:03,030 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] A_locked = 1; [2024-06-14 14:14:03,030 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] multithreaded = 1; [2024-06-14 14:14:03,030 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] A_locked = 0; [2024-06-14 14:14:03,030 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 1; [2024-06-14 14:14:03,030 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] B_locked = 0; [2024-06-14 14:14:03,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:14:03,432 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:14:03,445 INFO L202 MainTranslator]: Completed pre-run 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:14:03,548 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:14:03,594 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:14:03,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03 WrapperNode [2024-06-14 14:14:03,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:14:03,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:14:03,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:14:03,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:14:03,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,658 INFO L138 Inliner]: procedures = 162, calls = 32, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 71 [2024-06-14 14:14:03,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:14:03,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:14:03,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:14:03,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:14:03,670 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,677 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,722 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]. [2024-06-14 14:14:03,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,730 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:14:03,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:14:03,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:14:03,735 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:14:03,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (1/1) ... [2024-06-14 14:14:03,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:14:03,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:14:03,784 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) [2024-06-14 14:14:03,796 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 [2024-06-14 14:14:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-14 14:14:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:14:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-14 14:14:03,827 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-14 14:14:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:14:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 14:14:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-14 14:14:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-14 14:14:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:14:03,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:14:03,829 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:14:03,945 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:14:03,947 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:14:04,145 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:14:04,145 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:14:04,291 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:14:04,291 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 14:14:04,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:14:04 BoogieIcfgContainer [2024-06-14 14:14:04,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:14:04,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:14:04,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:14:04,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:14:04,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:14:01" (1/4) ... [2024-06-14 14:14:04,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59238bff and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:14:04, skipping insertion in model container [2024-06-14 14:14:04,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:14:02" (2/4) ... [2024-06-14 14:14:04,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59238bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:14:04, skipping insertion in model container [2024-06-14 14:14:04,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:14:03" (3/4) ... [2024-06-14 14:14:04,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59238bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:14:04, skipping insertion in model container [2024-06-14 14:14:04,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:14:04" (4/4) ... [2024-06-14 14:14:04,310 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2024-06-14 14:14:04,327 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:14:04,327 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-14 14:14:04,327 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:14:04,374 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-14 14:14:04,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 31 transitions, 69 flow [2024-06-14 14:14:04,430 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-06-14 14:14:04,432 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-14 14:14:04,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 30 events. 0/30 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-14 14:14:04,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 31 transitions, 69 flow [2024-06-14 14:14:04,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 41 flow [2024-06-14 14:14:04,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:14:04,467 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;@2768b634, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:14:04,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-14 14:14:04,471 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:14:04,472 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 14:14:04,472 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:14:04,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:14:04,473 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 14:14:04,473 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 14:14:04,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:14:04,477 INFO L85 PathProgramCache]: Analyzing trace with hash -662860298, now seen corresponding path program 1 times [2024-06-14 14:14:04,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:14:04,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589376244] [2024-06-14 14:14:04,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:14:04,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:14:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:14:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:14:04,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:14:04,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589376244] [2024-06-14 14:14:04,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589376244] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:14:04,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:14:04,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:14:04,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422363148] [2024-06-14 14:14:04,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:14:04,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:14:04,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:14:04,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:14:04,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:14:04,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-06-14 14:14:04,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-06-14 14:14:04,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:14:04,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-06-14 14:14:04,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:14:05,021 INFO L124 PetriNetUnfolderBase]: 11/48 cut-off events. [2024-06-14 14:14:05,021 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:14:05,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 48 events. 11/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 8 based on Foata normal form. 7/52 useless extension candidates. Maximal degree in co-relation 81. Up to 27 conditions per place. [2024-06-14 14:14:05,024 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 13 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2024-06-14 14:14:05,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 75 flow [2024-06-14 14:14:05,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:14:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:14:05,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-06-14 14:14:05,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4731182795698925 [2024-06-14 14:14:05,037 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 41 flow. Second operand 3 states and 44 transitions. [2024-06-14 14:14:05,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 75 flow [2024-06-14 14:14:05,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:14:05,043 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 51 flow [2024-06-14 14:14:05,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2024-06-14 14:14:05,073 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2024-06-14 14:14:05,074 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 51 flow [2024-06-14 14:14:05,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-06-14 14:14:05,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:14:05,074 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:14:05,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:14:05,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 14:14:05,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:14:05,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1192987230, now seen corresponding path program 1 times [2024-06-14 14:14:05,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:14:05,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739789380] [2024-06-14 14:14:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:14:05,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:14:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:14:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:14:05,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:14:05,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739789380] [2024-06-14 14:14:05,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739789380] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:14:05,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:14:05,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:14:05,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135237511] [2024-06-14 14:14:05,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:14:05,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:14:05,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:14:05,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:14:05,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:14:05,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-06-14 14:14:05,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-06-14 14:14:05,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:14:05,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-06-14 14:14:05,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:14:05,462 INFO L124 PetriNetUnfolderBase]: 10/47 cut-off events. [2024-06-14 14:14:05,462 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-14 14:14:05,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 47 events. 10/47 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 2 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 87. Up to 14 conditions per place. [2024-06-14 14:14:05,464 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 12 selfloop transitions, 7 changer transitions 0/23 dead transitions. [2024-06-14 14:14:05,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 99 flow [2024-06-14 14:14:05,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:14:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:14:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions. [2024-06-14 14:14:05,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41935483870967744 [2024-06-14 14:14:05,469 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 51 flow. Second operand 5 states and 65 transitions. [2024-06-14 14:14:05,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 99 flow [2024-06-14 14:14:05,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 93 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:14:05,475 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 63 flow [2024-06-14 14:14:05,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=63, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2024-06-14 14:14:05,476 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 5 predicate places. [2024-06-14 14:14:05,476 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 63 flow [2024-06-14 14:14:05,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-06-14 14:14:05,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:14:05,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:14:05,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:14:05,477 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 14:14:05,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:14:05,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1359549165, now seen corresponding path program 1 times [2024-06-14 14:14:05,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:14:05,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085374509] [2024-06-14 14:14:05,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:14:05,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:14:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:14:05,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:14:05,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:14:05,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085374509] [2024-06-14 14:14:05,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085374509] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:14:05,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:14:05,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:14:05,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845334898] [2024-06-14 14:14:05,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:14:05,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:14:05,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:14:05,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:14:05,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:14:05,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-06-14 14:14:05,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-06-14 14:14:05,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:14:05,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-06-14 14:14:05,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:14:05,708 INFO L124 PetriNetUnfolderBase]: 9/39 cut-off events. [2024-06-14 14:14:05,708 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-06-14 14:14:05,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 39 events. 9/39 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 33 event pairs, 2 based on Foata normal form. 2/40 useless extension candidates. Maximal degree in co-relation 81. Up to 12 conditions per place. [2024-06-14 14:14:05,709 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2024-06-14 14:14:05,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 20 transitions, 93 flow [2024-06-14 14:14:05,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:14:05,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:14:05,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 71 transitions. [2024-06-14 14:14:05,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3817204301075269 [2024-06-14 14:14:05,713 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 63 flow. Second operand 6 states and 71 transitions. [2024-06-14 14:14:05,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 20 transitions, 93 flow [2024-06-14 14:14:05,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-14 14:14:05,717 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2024-06-14 14:14:05,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2024-06-14 14:14:05,719 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 3 predicate places. [2024-06-14 14:14:05,719 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2024-06-14 14:14:05,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-06-14 14:14:05,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-14 14:14:05,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-14 14:14:05,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:14:05,723 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-14 14:14:05,726 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:14:05,726 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:14:05,731 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-14 14:14:05,731 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-14 14:14:05,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:14:05 BasicIcfg [2024-06-14 14:14:05,733 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:14:05,735 INFO L158 Benchmark]: Toolchain (without parser) took 2757.74ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 96.8MB in the beginning and 97.9MB in the end (delta: -1.1MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-06-14 14:14:05,736 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:14:05,736 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:14:05,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.79ms. Allocated memory is still 148.9MB. Free memory was 96.8MB in the beginning and 69.9MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-14 14:14:05,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.46ms. Allocated memory is still 148.9MB. Free memory was 69.9MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:14:05,740 INFO L158 Benchmark]: Boogie Preprocessor took 74.24ms. Allocated memory is still 148.9MB. Free memory was 67.8MB in the beginning and 117.5MB in the end (delta: -49.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-06-14 14:14:05,740 INFO L158 Benchmark]: RCFGBuilder took 559.30ms. Allocated memory is still 148.9MB. Free memory was 116.9MB in the beginning and 86.6MB in the end (delta: 30.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-06-14 14:14:05,740 INFO L158 Benchmark]: TraceAbstraction took 1436.27ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 86.6MB in the beginning and 97.9MB in the end (delta: -11.3MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2024-06-14 14:14:05,746 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 0.20ms. Allocated memory is still 100.7MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.79ms. Allocated memory is still 148.9MB. Free memory was 96.8MB in the beginning and 69.9MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.46ms. Allocated memory is still 148.9MB. Free memory was 69.9MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.24ms. Allocated memory is still 148.9MB. Free memory was 67.8MB in the beginning and 117.5MB in the end (delta: -49.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.30ms. Allocated memory is still 148.9MB. Free memory was 116.9MB in the beginning and 86.6MB in the end (delta: 30.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1436.27ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 86.6MB in the beginning and 97.9MB in the end (delta: -11.3MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 47 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 0.7s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-14 14:14:05,775 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