./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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_33-traces-v-matters_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_33-traces-v-matters_true.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/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 --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 18:09:38,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:09:38,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:09:38,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:09:38,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:09:38,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:09:38,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:09:38,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:09:38,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:09:38,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:09:38,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:09:38,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:09:38,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:09:38,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:09:38,219 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:09:38,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:09:38,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:09:38,221 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:09:38,221 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:09:38,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:09:38,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:09:38,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:09:38,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:09:38,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:09:38,222 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:09:38,223 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:09:38,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:09:38,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:09:38,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:09:38,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:09:38,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:09:38,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:09:38,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:09:38,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:09:38,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:09:38,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:09:38,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:09:38,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:09:38,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:09:38,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:09:38,226 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:09:38,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:09:38,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:09:38,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:09:38,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:09:38,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:09:38,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:09:38,402 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:09:38,402 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:09:38,403 INFO L431 ainManager$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 [2024-06-20 18:09:39,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:09:39,518 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:09:39,518 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-06-20 18:09:39,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11cae86a9/499a8ede3fce4e7fb536881d4481f71e/FLAGb58c39693 [2024-06-20 18:09:39,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11cae86a9/499a8ede3fce4e7fb536881d4481f71e [2024-06-20 18:09:39,544 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:09:39,545 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:09:39,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_33-traces-v-matters_true.yml/witness.yml [2024-06-20 18:09:39,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:09:39,642 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:09:39,643 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:09:39,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:09:39,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:09:39,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:09:39" (1/2) ... [2024-06-20 18:09:39,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd65f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:39, skipping insertion in model container [2024-06-20 18:09:39,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:09:39" (1/2) ... [2024-06-20 18:09:39,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b223ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:39, skipping insertion in model container [2024-06-20 18:09:39,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:09:39" (2/2) ... [2024-06-20 18:09:39,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd65f96 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:39, skipping insertion in model container [2024-06-20 18:09:39,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:09:39" (2/2) ... [2024-06-20 18:09:39,653 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:09:39,684 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:09:39,685 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] (! multithreaded || ((((0 <= g && g <= 42) && g <= 127) && g % 2 == 0) && ((g == 0 || g == 2) || g == 42))) && (! multithreaded || (C_locked || ((((0 <= g && g <= 42) && g <= 127) && g % 2 == 0) && ((g == 0 || g == 2) || g == 42)))) [2024-06-20 18:09:39,685 INFO L103 edCorrectnessWitness]: ghost_variable D_locked = 0 [2024-06-20 18:09:39,685 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:09:39,685 INFO L103 edCorrectnessWitness]: ghost_variable C_locked = 0 [2024-06-20 18:09:39,686 INFO L103 edCorrectnessWitness]: ghost_variable E_locked = 0 [2024-06-20 18:09:39,686 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] C_locked = 1; [2024-06-20 18:09:39,686 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] E_locked = 0; [2024-06-20 18:09:39,686 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] C_locked = 1; [2024-06-20 18:09:39,687 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] D_locked = 0; [2024-06-20 18:09:39,687 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-20 18:09:39,687 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] E_locked = 1; [2024-06-20 18:09:39,687 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] E_locked = 1; [2024-06-20 18:09:39,687 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] C_locked = 0; [2024-06-20 18:09:39,687 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] D_locked = 1; [2024-06-20 18:09:39,687 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] D_locked = 1; [2024-06-20 18:09:39,687 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] C_locked = 0; [2024-06-20 18:09:39,720 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:09:39,997 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:09:40,008 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 [2024-06-20 18:09:40,080 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:09:40,111 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:09:40,111 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40 WrapperNode [2024-06-20 18:09:40,111 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:09:40,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:09:40,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:09:40,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:09:40,117 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 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,134 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 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,157 INFO L138 Inliner]: procedures = 162, calls = 37, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-06-20 18:09:40,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:09:40,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:09:40,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:09:40,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:09:40,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,178 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,187 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]. [2024-06-20 18:09:40,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:09:40,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:09:40,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:09:40,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:09:40,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (1/1) ... [2024-06-20 18:09:40,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:09:40,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:09:40,227 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 18:09:40,231 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 18:09:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-20 18:09:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:09:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-20 18:09:40,251 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-20 18:09:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:09:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 18:09:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-20 18:09:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-20 18:09:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-20 18:09:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:09:40,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:09:40,253 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 18:09:40,344 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:09:40,345 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:09:40,477 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:09:40,477 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:09:40,611 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:09:40,612 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 18:09:40,612 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:09:40 BoogieIcfgContainer [2024-06-20 18:09:40,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:09:40,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:09:40,613 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:09:40,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:09:40,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:09:39" (1/4) ... [2024-06-20 18:09:40,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149e8762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:09:40, skipping insertion in model container [2024-06-20 18:09:40,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:09:39" (2/4) ... [2024-06-20 18:09:40,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149e8762 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:09:40, skipping insertion in model container [2024-06-20 18:09:40,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:40" (3/4) ... [2024-06-20 18:09:40,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149e8762 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:09:40, skipping insertion in model container [2024-06-20 18:09:40,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:09:40" (4/4) ... [2024-06-20 18:09:40,622 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2024-06-20 18:09:40,634 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:09:40,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-20 18:09:40,635 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:09:40,660 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-20 18:09:40,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 28 transitions, 60 flow [2024-06-20 18:09:40,701 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2024-06-20 18:09:40,701 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:09:40,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 27 events. 0/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-20 18:09:40,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 28 transitions, 60 flow [2024-06-20 18:09:40,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2024-06-20 18:09:40,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:09:40,720 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;@1a2c5532, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:09:40,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-20 18:09:40,727 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:09:40,729 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-20 18:09:40,729 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:09:40,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:09:40,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 18:09:40,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 18:09:40,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:09:40,734 INFO L85 PathProgramCache]: Analyzing trace with hash 237877198, now seen corresponding path program 1 times [2024-06-20 18:09:40,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:09:40,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408021201] [2024-06-20 18:09:40,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:09:40,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:09:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:09:41,054 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 18:09:41,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:09:41,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408021201] [2024-06-20 18:09:41,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408021201] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:09:41,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:09:41,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 18:09:41,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033027434] [2024-06-20 18:09:41,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:09:41,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:09:41,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:09:41,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:09:41,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:09:41,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2024-06-20 18:09:41,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 18:09:41,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:09:41,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2024-06-20 18:09:41,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:09:41,137 INFO L124 PetriNetUnfolderBase]: 13/47 cut-off events. [2024-06-20 18:09:41,137 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 18:09:41,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 47 events. 13/47 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 7 based on Foata normal form. 3/45 useless extension candidates. Maximal degree in co-relation 80. Up to 30 conditions per place. [2024-06-20 18:09:41,139 INFO L140 encePairwiseOnDemand]: 25/28 looper letters, 11 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2024-06-20 18:09:41,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 67 flow [2024-06-20 18:09:41,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:09:41,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:09:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-06-20 18:09:41,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-06-20 18:09:41,148 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 44 transitions. [2024-06-20 18:09:41,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 67 flow [2024-06-20 18:09:41,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 18:09:41,151 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 46 flow [2024-06-20 18:09:41,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, 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 18:09:41,156 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2024-06-20 18:09:41,158 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 46 flow [2024-06-20 18:09:41,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 18:09:41,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:09:41,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:09:41,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:09:41,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 18:09:41,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:09:41,162 INFO L85 PathProgramCache]: Analyzing trace with hash -747298049, now seen corresponding path program 1 times [2024-06-20 18:09:41,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:09:41,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196654929] [2024-06-20 18:09:41,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:09:41,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:09:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:09:41,357 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 18:09:41,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:09:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196654929] [2024-06-20 18:09:41,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196654929] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:09:41,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:09:41,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-20 18:09:41,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246286681] [2024-06-20 18:09:41,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:09:41,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-20 18:09:41,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:09:41,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-20 18:09:41,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-20 18:09:41,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2024-06-20 18:09:41,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 18:09:41,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:09:41,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2024-06-20 18:09:41,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:09:41,405 INFO L124 PetriNetUnfolderBase]: 10/41 cut-off events. [2024-06-20 18:09:41,405 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-20 18:09:41,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 41 events. 10/41 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 5 based on Foata normal form. 3/42 useless extension candidates. Maximal degree in co-relation 75. Up to 18 conditions per place. [2024-06-20 18:09:41,406 INFO L140 encePairwiseOnDemand]: 24/28 looper letters, 11 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2024-06-20 18:09:41,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 78 flow [2024-06-20 18:09:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 18:09:41,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 18:09:41,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 55 transitions. [2024-06-20 18:09:41,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49107142857142855 [2024-06-20 18:09:41,408 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 46 flow. Second operand 4 states and 55 transitions. [2024-06-20 18:09:41,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 78 flow [2024-06-20 18:09:41,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-20 18:09:41,409 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 52 flow [2024-06-20 18:09:41,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, 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 18:09:41,410 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2024-06-20 18:09:41,410 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 52 flow [2024-06-20 18:09:41,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 18:09:41,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:09:41,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:09:41,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 18:09:41,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 18:09:41,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:09:41,412 INFO L85 PathProgramCache]: Analyzing trace with hash 966879475, now seen corresponding path program 1 times [2024-06-20 18:09:41,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:09:41,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196696503] [2024-06-20 18:09:41,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:09:41,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:09:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:09:41,557 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 18:09:41,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:09:41,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196696503] [2024-06-20 18:09:41,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196696503] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:09:41,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:09:41,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-20 18:09:41,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146896130] [2024-06-20 18:09:41,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:09:41,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:09:41,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:09:41,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:09:41,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:09:41,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2024-06-20 18:09:41,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 52 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 18:09:41,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:09:41,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2024-06-20 18:09:41,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:09:41,599 INFO L124 PetriNetUnfolderBase]: 8/36 cut-off events. [2024-06-20 18:09:41,599 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-06-20 18:09:41,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 36 events. 8/36 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 31 event pairs, 2 based on Foata normal form. 3/37 useless extension candidates. Maximal degree in co-relation 68. Up to 18 conditions per place. [2024-06-20 18:09:41,600 INFO L140 encePairwiseOnDemand]: 26/28 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-06-20 18:09:41,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 18 transitions, 72 flow [2024-06-20 18:09:41,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:09:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:09:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-06-20 18:09:41,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5119047619047619 [2024-06-20 18:09:41,604 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 52 flow. Second operand 3 states and 43 transitions. [2024-06-20 18:09:41,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 18 transitions, 72 flow [2024-06-20 18:09:41,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 62 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-20 18:09:41,605 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2024-06-20 18:09:41,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, 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=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2024-06-20 18:09:41,606 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2024-06-20 18:09:41,606 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2024-06-20 18:09:41,607 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 18:09:41,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-20 18:09:41,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-20 18:09:41,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-20 18:09:41,610 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-20 18:09:41,613 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 18:09:41,613 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 18:09:41,617 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-20 18:09:41,617 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-20 18:09:41,618 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 06:09:41 BasicIcfg [2024-06-20 18:09:41,618 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 18:09:41,620 INFO L158 Benchmark]: Toolchain (without parser) took 1976.58ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 96.0MB in the beginning and 78.7MB in the end (delta: 17.3MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2024-06-20 18:09:41,621 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:09:41,621 INFO L158 Benchmark]: Witness Parser took 0.44ms. Allocated memory is still 130.0MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:09:41,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.50ms. Allocated memory is still 130.0MB. Free memory was 96.0MB in the beginning and 82.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-06-20 18:09:41,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.07ms. Allocated memory is still 130.0MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 18:09:41,623 INFO L158 Benchmark]: Boogie Preprocessor took 37.28ms. Allocated memory is still 130.0MB. Free memory was 80.2MB in the beginning and 78.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 18:09:41,624 INFO L158 Benchmark]: RCFGBuilder took 415.10ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 78.1MB in the beginning and 130.1MB in the end (delta: -52.0MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2024-06-20 18:09:41,625 INFO L158 Benchmark]: TraceAbstraction took 1005.05ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 78.7MB in the end (delta: 50.2MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2024-06-20 18:09:41,629 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.44ms. Allocated memory is still 130.0MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.50ms. Allocated memory is still 130.0MB. Free memory was 96.0MB in the beginning and 82.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.07ms. Allocated memory is still 130.0MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.28ms. Allocated memory is still 130.0MB. Free memory was 80.2MB in the beginning and 78.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 415.10ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 78.1MB in the beginning and 130.1MB in the end (delta: -52.0MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1005.05ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 78.7MB in the end (delta: 50.2MB). Peak memory consumption was 47.0MB. 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, 44 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 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 18:09:41,652 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