./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_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/protection/13-privatized_31-traces-mine-vs-mutex_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 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_31-traces-mine-vs-mutex_true.i ./goblint.2024-05-21_14-57-05.files/protection/13-privatized_31-traces-mine-vs-mutex_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-76401ed-m [2024-06-20 15:36:57,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 15:36:57,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 15:36:57,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 15:36:57,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 15:36:57,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 15:36:57,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 15:36:57,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 15:36:57,236 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 15:36:57,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 15:36:57,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 15:36:57,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 15:36:57,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 15:36:57,242 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 15:36:57,243 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 15:36:57,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 15:36:57,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 15:36:57,243 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 15:36:57,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 15:36:57,244 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 15:36:57,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 15:36:57,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 15:36:57,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 15:36:57,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 15:36:57,246 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 15:36:57,246 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 15:36:57,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 15:36:57,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 15:36:57,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 15:36:57,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 15:36:57,248 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 15:36:57,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 15:36:57,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 15:36:57,249 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 15:36:57,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 15:36:57,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 15:36:57,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 15:36:57,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 15:36:57,250 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 15:36:57,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 15:36:57,250 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 15:36:57,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 15:36:57,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 15:36:57,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 15:36:57,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 15:36:57,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 15:36:57,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 15:36:57,518 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 15:36:57,520 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 15:36:57,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/13-privatized_31-traces-mine-vs-mutex_true.yml/witness.yml [2024-06-20 15:36:57,696 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 15:36:57,697 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 15:36:57,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2024-06-20 15:36:58,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 15:36:59,039 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 15:36:59,040 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2024-06-20 15:36:59,051 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/028d3dcb3/c0b96391c18b405eb706a944ea929318/FLAG1f7645419 [2024-06-20 15:36:59,068 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/028d3dcb3/c0b96391c18b405eb706a944ea929318 [2024-06-20 15:36:59,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 15:36:59,071 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 15:36:59,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 15:36:59,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 15:36:59,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 15:36:59,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 03:36:57" (1/2) ... [2024-06-20 15:36:59,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4391b69c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 03:36:59, skipping insertion in model container [2024-06-20 15:36:59,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 03:36:57" (1/2) ... [2024-06-20 15:36:59,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6250d431 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 03:36:59, skipping insertion in model container [2024-06-20 15:36:59,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 03:36:59" (2/2) ... [2024-06-20 15:36:59,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4391b69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59, skipping insertion in model container [2024-06-20 15:36:59,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 03:36:59" (2/2) ... [2024-06-20 15:36:59,082 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 15:36:59,123 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 15:36:59,124 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ! multithreaded || 0 <= g [2024-06-20 15:36:59,124 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 15:36:59,124 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-20 15:36:59,124 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-20 15:36:59,125 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] A_locked = 1; [2024-06-20 15:36:59,125 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] B_locked = 0; [2024-06-20 15:36:59,125 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] B_locked = 0; [2024-06-20 15:36:59,125 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] B_locked = 1; [2024-06-20 15:36:59,125 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] B_locked = 0; [2024-06-20 15:36:59,125 INFO L106 edCorrectnessWitness]: ghost_update [L704-L704] A_locked = 0; [2024-06-20 15:36:59,126 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] B_locked = 1; [2024-06-20 15:36:59,126 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 1; [2024-06-20 15:36:59,126 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-20 15:36:59,126 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] A_locked = 1; [2024-06-20 15:36:59,126 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] A_locked = 0; [2024-06-20 15:36:59,126 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] B_locked = 1; [2024-06-20 15:36:59,127 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 0; [2024-06-20 15:36:59,171 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 15:36:59,473 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 15:36:59,486 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 Start Parsing Local Start Parsing Local [2024-06-20 15:36:59,572 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 15:36:59,617 INFO L206 MainTranslator]: Completed translation [2024-06-20 15:36:59,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59 WrapperNode [2024-06-20 15:36:59,618 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 15:36:59,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 15:36:59,619 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 15:36:59,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 15:36:59,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,679 INFO L138 Inliner]: procedures = 162, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-06-20 15:36:59,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 15:36:59,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 15:36:59,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 15:36:59,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 15:36:59,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,697 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,721 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]. [2024-06-20 15:36:59,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 15:36:59,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 15:36:59,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 15:36:59,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 15:36:59,744 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (1/1) ... [2024-06-20 15:36:59,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 15:36:59,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 15:36:59,781 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) [2024-06-20 15:36:59,800 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 [2024-06-20 15:36:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-20 15:36:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 15:36:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-20 15:36:59,819 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-20 15:36:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 15:36:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 15:36:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-20 15:36:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-20 15:36:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 15:36:59,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 15:36:59,822 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 15:36:59,965 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 15:36:59,968 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 15:37:00,161 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 15:37:00,161 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 15:37:00,281 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 15:37:00,282 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 15:37:00,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 03:37:00 BoogieIcfgContainer [2024-06-20 15:37:00,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 15:37:00,299 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 15:37:00,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 15:37:00,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 15:37:00,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 03:36:57" (1/4) ... [2024-06-20 15:37:00,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4378232f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 03:37:00, skipping insertion in model container [2024-06-20 15:37:00,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 03:36:59" (2/4) ... [2024-06-20 15:37:00,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4378232f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 03:37:00, skipping insertion in model container [2024-06-20 15:37:00,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:59" (3/4) ... [2024-06-20 15:37:00,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4378232f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 03:37:00, skipping insertion in model container [2024-06-20 15:37:00,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 03:37:00" (4/4) ... [2024-06-20 15:37:00,314 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2024-06-20 15:37:00,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 15:37:00,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-20 15:37:00,352 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 15:37:00,391 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-20 15:37:00,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 75 flow [2024-06-20 15:37:00,464 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2024-06-20 15:37:00,466 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 15:37:00,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 33 events. 0/33 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-20 15:37:00,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 75 flow [2024-06-20 15:37:00,471 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2024-06-20 15:37:00,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 15:37:00,495 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;@3450f94c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 15:37:00,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-20 15:37:00,505 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 15:37:00,505 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-20 15:37:00,505 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 15:37:00,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:37:00,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 15:37:00,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 15:37:00,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:37:00,512 INFO L85 PathProgramCache]: Analyzing trace with hash 245394365, now seen corresponding path program 1 times [2024-06-20 15:37:00,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:37:00,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559338752] [2024-06-20 15:37:00,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:37:00,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:37:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:37:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:37:00,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:37:00,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559338752] [2024-06-20 15:37:00,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559338752] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:37:00,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:37:00,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 15:37:00,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298963472] [2024-06-20 15:37:00,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:37:00,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 15:37:00,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:37:00,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 15:37:00,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 15:37:00,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-06-20 15:37:00,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 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) [2024-06-20 15:37:00,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:37:00,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-06-20 15:37:00,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:37:00,814 INFO L124 PetriNetUnfolderBase]: 15/51 cut-off events. [2024-06-20 15:37:00,814 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 15:37:00,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 51 events. 15/51 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 8 based on Foata normal form. 3/51 useless extension candidates. Maximal degree in co-relation 89. Up to 35 conditions per place. [2024-06-20 15:37:00,817 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 12 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2024-06-20 15:37:00,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 69 flow [2024-06-20 15:37:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 15:37:00,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 15:37:00,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2024-06-20 15:37:00,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-20 15:37:00,829 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 51 transitions. [2024-06-20 15:37:00,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 69 flow [2024-06-20 15:37:00,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 15:37:00,833 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 46 flow [2024-06-20 15:37:00,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2024-06-20 15:37:00,837 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2024-06-20 15:37:00,837 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 46 flow [2024-06-20 15:37:00,838 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) [2024-06-20 15:37:00,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:37:00,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 15:37:00,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 15:37:00,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 15:37:00,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:37:00,839 INFO L85 PathProgramCache]: Analyzing trace with hash -130121290, now seen corresponding path program 1 times [2024-06-20 15:37:00,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:37:00,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895940223] [2024-06-20 15:37:00,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:37:00,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:37:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:37:00,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:37:00,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:37:00,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895940223] [2024-06-20 15:37:00,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895940223] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:37:00,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:37:00,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-20 15:37:00,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567594188] [2024-06-20 15:37:00,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:37:00,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-20 15:37:00,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:37:00,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-20 15:37:00,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-20 15:37:00,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-06-20 15:37:00,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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) [2024-06-20 15:37:00,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:37:00,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-06-20 15:37:00,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:37:01,045 INFO L124 PetriNetUnfolderBase]: 12/44 cut-off events. [2024-06-20 15:37:01,046 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-06-20 15:37:01,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 44 events. 12/44 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 5 based on Foata normal form. 3/44 useless extension candidates. Maximal degree in co-relation 84. Up to 20 conditions per place. [2024-06-20 15:37:01,048 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 12 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2024-06-20 15:37:01,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 80 flow [2024-06-20 15:37:01,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 15:37:01,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 15:37:01,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2024-06-20 15:37:01,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2024-06-20 15:37:01,053 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 46 flow. Second operand 4 states and 64 transitions. [2024-06-20 15:37:01,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 80 flow [2024-06-20 15:37:01,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-20 15:37:01,056 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 52 flow [2024-06-20 15:37:01,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2024-06-20 15:37:01,058 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2024-06-20 15:37:01,059 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 52 flow [2024-06-20 15:37:01,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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) [2024-06-20 15:37:01,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:37:01,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 15:37:01,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 15:37:01,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 15:37:01,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:37:01,062 INFO L85 PathProgramCache]: Analyzing trace with hash -834523148, now seen corresponding path program 1 times [2024-06-20 15:37:01,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:37:01,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605790056] [2024-06-20 15:37:01,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:37:01,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:37:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:37:01,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:37:01,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:37:01,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605790056] [2024-06-20 15:37:01,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605790056] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:37:01,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:37:01,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-20 15:37:01,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571813768] [2024-06-20 15:37:01,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:37:01,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-20 15:37:01,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:37:01,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-20 15:37:01,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-20 15:37:01,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-06-20 15:37:01,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-06-20 15:37:01,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:37:01,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-06-20 15:37:01,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:37:01,213 INFO L124 PetriNetUnfolderBase]: 9/37 cut-off events. [2024-06-20 15:37:01,213 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-06-20 15:37:01,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 37 events. 9/37 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 33 event pairs, 2 based on Foata normal form. 4/39 useless extension candidates. Maximal degree in co-relation 70. Up to 12 conditions per place. [2024-06-20 15:37:01,214 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2024-06-20 15:37:01,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 19 transitions, 78 flow [2024-06-20 15:37:01,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-20 15:37:01,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-20 15:37:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2024-06-20 15:37:01,216 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4411764705882353 [2024-06-20 15:37:01,216 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 52 flow. Second operand 5 states and 75 transitions. [2024-06-20 15:37:01,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 19 transitions, 78 flow [2024-06-20 15:37:01,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-20 15:37:01,223 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2024-06-20 15:37:01,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2024-06-20 15:37:01,224 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2024-06-20 15:37:01,225 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2024-06-20 15:37:01,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-06-20 15:37:01,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-20 15:37:01,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-20 15:37:01,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-20 15:37:01,230 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-20 15:37:01,234 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 15:37:01,234 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 15:37:01,238 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-20 15:37:01,238 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-20 15:37:01,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 03:37:01 BasicIcfg [2024-06-20 15:37:01,239 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 15:37:01,244 INFO L158 Benchmark]: Toolchain (without parser) took 2168.33ms. Allocated memory is still 176.2MB. Free memory was 144.8MB in the beginning and 82.4MB in the end (delta: 62.4MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-06-20 15:37:01,244 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 15:37:01,244 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory was 97.4MB in the beginning and 97.3MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 15:37:01,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.80ms. Allocated memory is still 176.2MB. Free memory was 144.8MB in the beginning and 119.2MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-20 15:37:01,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.95ms. Allocated memory is still 176.2MB. Free memory was 118.4MB in the beginning and 117.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 15:37:01,246 INFO L158 Benchmark]: Boogie Preprocessor took 61.50ms. Allocated memory is still 176.2MB. Free memory was 117.1MB in the beginning and 115.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 15:37:01,246 INFO L158 Benchmark]: RCFGBuilder took 540.21ms. Allocated memory is still 176.2MB. Free memory was 115.0MB in the beginning and 85.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-06-20 15:37:01,249 INFO L158 Benchmark]: TraceAbstraction took 940.40ms. Allocated memory is still 176.2MB. Free memory was 143.3MB in the beginning and 82.4MB in the end (delta: 60.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-06-20 15:37:01,256 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 125.8MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory was 97.4MB in the beginning and 97.3MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.80ms. Allocated memory is still 176.2MB. Free memory was 144.8MB in the beginning and 119.2MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.95ms. Allocated memory is still 176.2MB. Free memory was 118.4MB in the beginning and 117.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.50ms. Allocated memory is still 176.2MB. Free memory was 117.1MB in the beginning and 115.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.21ms. Allocated memory is still 176.2MB. Free memory was 115.0MB in the beginning and 85.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 940.40ms. Allocated memory is still 176.2MB. Free memory was 143.3MB in the beginning and 82.4MB in the end (delta: 60.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: 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, 50 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: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 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! [2024-06-20 15:37:01,279 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