./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_33-traces-v-matters_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_33-traces-v-matters_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 01:05:42,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 01:05:42,132 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 01:05:42,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 01:05:42,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 01:05:42,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 01:05:42,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 01:05:42,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 01:05:42,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 01:05:42,168 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 01:05:42,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 01:05:42,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 01:05:42,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 01:05:42,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 01:05:42,171 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 01:05:42,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 01:05:42,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 01:05:42,171 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 01:05:42,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 01:05:42,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 01:05:42,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 01:05:42,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 01:05:42,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 01:05:42,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 01:05:42,184 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 01:05:42,185 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 01:05:42,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 01:05:42,185 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 01:05:42,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 01:05:42,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 01:05:42,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 01:05:42,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 01:05:42,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:05:42,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 01:05:42,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 01:05:42,187 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 01:05:42,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 01:05:42,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 01:05:42,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 01:05:42,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 01:05:42,188 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 01:05:42,188 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 01:05:42,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 01:05:42,189 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 01:05:42,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 01:05:42,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 01:05:42,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 01:05:42,409 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 01:05:42,409 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 01:05:42,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-06-28 01:05:43,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 01:05:43,682 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 01:05:43,683 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-06-28 01:05:43,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f639da0/264354a1d1b24e72b93adb31d8778d6b/FLAG7ed651c13 [2024-06-28 01:05:43,702 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f639da0/264354a1d1b24e72b93adb31d8778d6b [2024-06-28 01:05:43,704 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 01:05:43,705 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 01:05:43,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_33-traces-v-matters_true.yml/witness.yml [2024-06-28 01:05:43,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 01:05:43,796 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 01:05:43,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 01:05:43,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 01:05:43,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 01:05:43,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:05:43" (1/2) ... [2024-06-28 01:05:43,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296d6db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:43, skipping insertion in model container [2024-06-28 01:05:43,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:05:43" (1/2) ... [2024-06-28 01:05:43,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c32515d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:43, skipping insertion in model container [2024-06-28 01:05:43,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:05:43" (2/2) ... [2024-06-28 01:05:43,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296d6db9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:43, skipping insertion in model container [2024-06-28 01:05:43,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:05:43" (2/2) ... [2024-06-28 01:05:43,811 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 01:05:43,850 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 01:05:43,850 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] (! multithreaded || ((g == 0 || g == 2) || g == 42)) && (! multithreaded || (C_locked || ((g == 0 || g == 2) || g == 42))) [2024-06-28 01:05:43,851 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 01:05:43,851 INFO L103 edCorrectnessWitness]: ghost_variable D_locked = 0 [2024-06-28 01:05:43,851 INFO L103 edCorrectnessWitness]: ghost_variable E_locked = 0 [2024-06-28 01:05:43,851 INFO L103 edCorrectnessWitness]: ghost_variable C_locked = 0 [2024-06-28 01:05:43,851 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-28 01:05:43,851 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] D_locked = 0; [2024-06-28 01:05:43,851 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] E_locked = 1; [2024-06-28 01:05:43,851 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] C_locked = 0; [2024-06-28 01:05:43,851 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] E_locked = 0; [2024-06-28 01:05:43,851 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] E_locked = 1; [2024-06-28 01:05:43,851 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] C_locked = 1; [2024-06-28 01:05:43,852 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] D_locked = 1; [2024-06-28 01:05:43,852 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] D_locked = 1; [2024-06-28 01:05:43,852 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] C_locked = 0; [2024-06-28 01:05:43,852 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] C_locked = 1; [2024-06-28 01:05:43,874 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 01:05:43,980 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2024-06-28 01:05:44,109 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:05:44,121 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:05:44,160 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:05:44,194 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:05:44,224 INFO L206 MainTranslator]: Completed translation [2024-06-28 01:05:44,224 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44 WrapperNode [2024-06-28 01:05:44,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 01:05:44,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 01:05:44,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 01:05:44,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 01:05:44,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,252 INFO L138 Inliner]: procedures = 162, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-06-28 01:05:44,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 01:05:44,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 01:05:44,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 01:05:44,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 01:05:44,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,266 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,276 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-06-28 01:05:44,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 01:05:44,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 01:05:44,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 01:05:44,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 01:05:44,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:05:44,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:05:44,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-28 01:05:44,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-28 01:05:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-28 01:05:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 01:05:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-28 01:05:44,337 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-28 01:05:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 01:05:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-28 01:05:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-28 01:05:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-28 01:05:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-28 01:05:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 01:05:44,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 01:05:44,338 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 01:05:44,432 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 01:05:44,434 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 01:05:44,566 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 01:05:44,566 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 01:05:44,678 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 01:05:44,679 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 01:05:44,681 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:05:44 BoogieIcfgContainer [2024-06-28 01:05:44,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 01:05:44,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 01:05:44,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 01:05:44,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 01:05:44,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 01:05:43" (1/4) ... [2024-06-28 01:05:44,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2581a61c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:05:44, skipping insertion in model container [2024-06-28 01:05:44,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:05:43" (2/4) ... [2024-06-28 01:05:44,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2581a61c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:05:44, skipping insertion in model container [2024-06-28 01:05:44,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (3/4) ... [2024-06-28 01:05:44,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2581a61c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:05:44, skipping insertion in model container [2024-06-28 01:05:44,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:05:44" (4/4) ... [2024-06-28 01:05:44,691 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2024-06-28 01:05:44,706 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 01:05:44,706 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-28 01:05:44,706 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 01:05:44,734 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-28 01:05:44,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 70 flow [2024-06-28 01:05:44,787 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-06-28 01:05:44,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:05:44,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 1/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-06-28 01:05:44,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 33 transitions, 70 flow [2024-06-28 01:05:44,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 29 transitions, 61 flow [2024-06-28 01:05:44,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 01:05:44,811 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;@5d3cf252, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 01:05:44,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-06-28 01:05:44,818 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 01:05:44,818 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-28 01:05:44,818 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:05:44,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:44,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 01:05:44,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:05:44,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:44,836 INFO L85 PathProgramCache]: Analyzing trace with hash 228244682, now seen corresponding path program 1 times [2024-06-28 01:05:44,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:44,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052358245] [2024-06-28 01:05:44,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:44,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:45,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:45,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052358245] [2024-06-28 01:05:45,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052358245] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:45,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:45,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:05:45,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859095284] [2024-06-28 01:05:45,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:45,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:05:45,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:45,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:05:45,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:05:45,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-06-28 01:05:45,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:45,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:45,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-06-28 01:05:45,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:45,222 INFO L124 PetriNetUnfolderBase]: 61/185 cut-off events. [2024-06-28 01:05:45,222 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-28 01:05:45,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 185 events. 61/185 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 742 event pairs, 31 based on Foata normal form. 3/182 useless extension candidates. Maximal degree in co-relation 320. Up to 122 conditions per place. [2024-06-28 01:05:45,225 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 22 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2024-06-28 01:05:45,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 125 flow [2024-06-28 01:05:45,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:05:45,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:05:45,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-06-28 01:05:45,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6565656565656566 [2024-06-28 01:05:45,235 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 61 flow. Second operand 3 states and 65 transitions. [2024-06-28 01:05:45,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 125 flow [2024-06-28 01:05:45,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:05:45,238 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 79 flow [2024-06-28 01:05:45,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2024-06-28 01:05:45,242 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2024-06-28 01:05:45,242 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 79 flow [2024-06-28 01:05:45,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:45,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:45,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:45,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 01:05:45,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:05:45,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:45,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1884232583, now seen corresponding path program 1 times [2024-06-28 01:05:45,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:45,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971071454] [2024-06-28 01:05:45,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:45,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:45,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:45,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971071454] [2024-06-28 01:05:45,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971071454] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:45,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:45,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:05:45,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508132295] [2024-06-28 01:05:45,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:45,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:05:45,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:45,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:05:45,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:05:45,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-06-28 01:05:45,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:45,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:45,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-06-28 01:05:45,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:45,399 INFO L124 PetriNetUnfolderBase]: 70/227 cut-off events. [2024-06-28 01:05:45,399 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-06-28 01:05:45,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 227 events. 70/227 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1002 event pairs, 14 based on Foata normal form. 6/231 useless extension candidates. Maximal degree in co-relation 413. Up to 84 conditions per place. [2024-06-28 01:05:45,401 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 27 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2024-06-28 01:05:45,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 157 flow [2024-06-28 01:05:45,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:05:45,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:05:45,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-06-28 01:05:45,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-06-28 01:05:45,403 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 79 flow. Second operand 3 states and 69 transitions. [2024-06-28 01:05:45,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 157 flow [2024-06-28 01:05:45,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:05:45,404 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 78 flow [2024-06-28 01:05:45,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-06-28 01:05:45,405 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2024-06-28 01:05:45,405 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 78 flow [2024-06-28 01:05:45,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:45,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:45,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:45,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 01:05:45,406 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:05:45,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:45,407 INFO L85 PathProgramCache]: Analyzing trace with hash -175018927, now seen corresponding path program 1 times [2024-06-28 01:05:45,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:45,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735275073] [2024-06-28 01:05:45,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:45,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:45,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:45,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735275073] [2024-06-28 01:05:45,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735275073] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:45,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:45,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:05:45,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443439592] [2024-06-28 01:05:45,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:45,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:05:45,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:45,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:05:45,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:05:45,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-06-28 01:05:45,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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) [2024-06-28 01:05:45,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:45,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-06-28 01:05:45,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:45,637 INFO L124 PetriNetUnfolderBase]: 74/231 cut-off events. [2024-06-28 01:05:45,637 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-06-28 01:05:45,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 231 events. 74/231 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1017 event pairs, 34 based on Foata normal form. 15/244 useless extension candidates. Maximal degree in co-relation 440. Up to 114 conditions per place. [2024-06-28 01:05:45,640 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 20 selfloop transitions, 2 changer transitions 21/53 dead transitions. [2024-06-28 01:05:45,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 53 transitions, 214 flow [2024-06-28 01:05:45,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:05:45,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:05:45,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2024-06-28 01:05:45,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-06-28 01:05:45,642 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 78 flow. Second operand 5 states and 99 transitions. [2024-06-28 01:05:45,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 53 transitions, 214 flow [2024-06-28 01:05:45,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 53 transitions, 208 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-28 01:05:45,643 INFO L231 Difference]: Finished difference. Result has 41 places, 28 transitions, 77 flow [2024-06-28 01:05:45,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=77, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2024-06-28 01:05:45,644 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2024-06-28 01:05:45,644 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 77 flow [2024-06-28 01:05:45,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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) [2024-06-28 01:05:45,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:45,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:45,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 01:05:45,645 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:05:45,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:45,645 INFO L85 PathProgramCache]: Analyzing trace with hash -134222076, now seen corresponding path program 1 times [2024-06-28 01:05:45,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:45,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234901828] [2024-06-28 01:05:45,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:45,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:45,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:45,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:45,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234901828] [2024-06-28 01:05:45,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234901828] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:45,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:45,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:05:45,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82724270] [2024-06-28 01:05:45,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:45,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:05:45,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:45,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:05:45,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:05:45,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 33 [2024-06-28 01:05:45,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:45,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:45,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 33 [2024-06-28 01:05:45,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:45,841 INFO L124 PetriNetUnfolderBase]: 15/71 cut-off events. [2024-06-28 01:05:45,841 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-06-28 01:05:45,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 71 events. 15/71 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 142 event pairs, 5 based on Foata normal form. 5/74 useless extension candidates. Maximal degree in co-relation 137. Up to 29 conditions per place. [2024-06-28 01:05:45,842 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 14 selfloop transitions, 5 changer transitions 1/31 dead transitions. [2024-06-28 01:05:45,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 31 transitions, 125 flow [2024-06-28 01:05:45,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:05:45,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:05:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-06-28 01:05:45,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2024-06-28 01:05:45,846 INFO L175 Difference]: Start difference. First operand has 41 places, 28 transitions, 77 flow. Second operand 4 states and 78 transitions. [2024-06-28 01:05:45,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 31 transitions, 125 flow [2024-06-28 01:05:45,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 31 transitions, 113 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-06-28 01:05:45,848 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 75 flow [2024-06-28 01:05:45,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=75, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2024-06-28 01:05:45,849 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2024-06-28 01:05:45,849 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 75 flow [2024-06-28 01:05:45,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:45,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:45,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:45,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 01:05:45,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:05:45,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:45,852 INFO L85 PathProgramCache]: Analyzing trace with hash -62856376, now seen corresponding path program 2 times [2024-06-28 01:05:45,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:45,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073284573] [2024-06-28 01:05:45,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:45,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:46,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:46,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073284573] [2024-06-28 01:05:46,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073284573] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:46,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:46,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:05:46,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054107453] [2024-06-28 01:05:46,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:46,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:05:46,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:46,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:05:46,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:05:46,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 33 [2024-06-28 01:05:46,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:46,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:46,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 33 [2024-06-28 01:05:46,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:46,065 INFO L124 PetriNetUnfolderBase]: 9/61 cut-off events. [2024-06-28 01:05:46,067 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-06-28 01:05:46,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 61 events. 9/61 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 1 based on Foata normal form. 4/63 useless extension candidates. Maximal degree in co-relation 116. Up to 21 conditions per place. [2024-06-28 01:05:46,068 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 16 selfloop transitions, 5 changer transitions 2/34 dead transitions. [2024-06-28 01:05:46,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 34 transitions, 139 flow [2024-06-28 01:05:46,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:05:46,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:05:46,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-06-28 01:05:46,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-06-28 01:05:46,073 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 75 flow. Second operand 4 states and 81 transitions. [2024-06-28 01:05:46,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 34 transitions, 139 flow [2024-06-28 01:05:46,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 34 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 01:05:46,076 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 88 flow [2024-06-28 01:05:46,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2024-06-28 01:05:46,078 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2024-06-28 01:05:46,078 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 88 flow [2024-06-28 01:05:46,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:46,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:46,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:46,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 01:05:46,079 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 01:05:46,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:46,080 INFO L85 PathProgramCache]: Analyzing trace with hash -883634867, now seen corresponding path program 1 times [2024-06-28 01:05:46,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:46,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823624209] [2024-06-28 01:05:46,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:46,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:46,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:46,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:46,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823624209] [2024-06-28 01:05:46,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823624209] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:46,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:46,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-28 01:05:46,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196289426] [2024-06-28 01:05:46,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:46,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-28 01:05:46,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:46,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-28 01:05:46,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-06-28 01:05:46,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-06-28 01:05:46,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 88 flow. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:46,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:46,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-06-28 01:05:46,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:46,308 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2024-06-28 01:05:46,309 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-06-28 01:05:46,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 29 events. 3/29 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 3 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 52. Up to 10 conditions per place. [2024-06-28 01:05:46,309 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2024-06-28 01:05:46,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 19 transitions, 89 flow [2024-06-28 01:05:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:05:46,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:05:46,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 80 transitions. [2024-06-28 01:05:46,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2024-06-28 01:05:46,310 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 88 flow. Second operand 5 states and 80 transitions. [2024-06-28 01:05:46,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 19 transitions, 89 flow [2024-06-28 01:05:46,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 19 transitions, 83 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-28 01:05:46,312 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2024-06-28 01:05:46,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, 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=29, PETRI_TRANSITIONS=0} [2024-06-28 01:05:46,314 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2024-06-28 01:05:46,314 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2024-06-28 01:05:46,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:46,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-06-28 01:05:46,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-06-28 01:05:46,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-06-28 01:05:46,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 01:05:46,317 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-06-28 01:05:46,319 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 01:05:46,319 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 01:05:46,323 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-28 01:05:46,323 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-28 01:05:46,325 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 01:05:46 BasicIcfg [2024-06-28 01:05:46,325 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 01:05:46,325 INFO L158 Benchmark]: Toolchain (without parser) took 2529.11ms. Allocated memory was 140.5MB in the beginning and 216.0MB in the end (delta: 75.5MB). Free memory was 111.8MB in the beginning and 109.2MB in the end (delta: 2.6MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. [2024-06-28 01:05:46,328 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:05:46,328 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 140.5MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 127.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:05:46,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.77ms. Allocated memory was 140.5MB in the beginning and 216.0MB in the end (delta: 75.5MB). Free memory was 111.6MB in the beginning and 163.8MB in the end (delta: -52.2MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2024-06-28 01:05:46,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.49ms. Allocated memory is still 216.0MB. Free memory was 163.8MB in the beginning and 161.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 01:05:46,329 INFO L158 Benchmark]: Boogie Preprocessor took 32.49ms. Allocated memory is still 216.0MB. Free memory was 161.7MB in the beginning and 159.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 01:05:46,329 INFO L158 Benchmark]: RCFGBuilder took 394.87ms. Allocated memory is still 216.0MB. Free memory was 159.6MB in the beginning and 130.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-06-28 01:05:46,329 INFO L158 Benchmark]: TraceAbstraction took 1641.47ms. Allocated memory is still 216.0MB. Free memory was 129.3MB in the beginning and 109.2MB in the end (delta: 20.1MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-06-28 01:05:46,331 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 140.5MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 127.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.77ms. Allocated memory was 140.5MB in the beginning and 216.0MB in the end (delta: 75.5MB). Free memory was 111.6MB in the beginning and 163.8MB in the end (delta: -52.2MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.49ms. Allocated memory is still 216.0MB. Free memory was 163.8MB in the beginning and 161.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.49ms. Allocated memory is still 216.0MB. Free memory was 161.7MB in the beginning and 159.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 394.87ms. Allocated memory is still 216.0MB. Free memory was 159.6MB in the beginning and 130.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1641.47ms. Allocated memory is still 216.0MB. Free memory was 129.3MB in the beginning and 109.2MB in the end (delta: 20.1MB). Peak memory consumption was 17.8MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 10 mSDtfsCounter, 270 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=5, InterpolantAutomatonStates: 24, 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, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-28 01:05:46,360 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