./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_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_44-traces-mine2_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f 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_44-traces-mine2_true.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_44-traces-mine2_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-bcb38a6-m [2024-06-04 16:22:54,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 16:22:54,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 16:22:54,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 16:22:54,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 16:22:54,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 16:22:54,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 16:22:54,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 16:22:54,231 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 16:22:54,235 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 16:22:54,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 16:22:54,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 16:22:54,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 16:22:54,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 16:22:54,237 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 16:22:54,237 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 16:22:54,237 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 16:22:54,238 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 16:22:54,238 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 16:22:54,238 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 16:22:54,238 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 16:22:54,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 16:22:54,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 16:22:54,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 16:22:54,239 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 16:22:54,239 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 16:22:54,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 16:22:54,240 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 16:22:54,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 16:22:54,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 16:22:54,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 16:22:54,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 16:22:54,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:22:54,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 16:22:54,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 16:22:54,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 16:22:54,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 16:22:54,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 16:22:54,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 16:22:54,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 16:22:54,248 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 16:22:54,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 16:22:54,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 16:22:54,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 16:22:54,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 16:22:54,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 16:22:54,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 16:22:54,471 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 16:22:54,472 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 16:22:54,473 INFO L431 ainManager$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_44-traces-mine2_true.yml/witness.yml [2024-06-04 16:22:54,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 16:22:54,555 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 16:22:54,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-06-04 16:22:55,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 16:22:55,733 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 16:22:55,734 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-06-04 16:22:55,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/598dc35ca/57cb86e5ff8847b7ba1e6ba284d4ecb0/FLAGc65abede3 [2024-06-04 16:22:55,752 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/598dc35ca/57cb86e5ff8847b7ba1e6ba284d4ecb0 [2024-06-04 16:22:55,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 16:22:55,753 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 16:22:55,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 16:22:55,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 16:22:55,757 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 16:22:55,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:22:54" (1/2) ... [2024-06-04 16:22:55,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74263714 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:22:55, skipping insertion in model container [2024-06-04 16:22:55,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:22:54" (1/2) ... [2024-06-04 16:22:55,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@38cdfa09 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:22:55, skipping insertion in model container [2024-06-04 16:22:55,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:22:55" (2/2) ... [2024-06-04 16:22:55,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74263714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:55, skipping insertion in model container [2024-06-04 16:22:55,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:22:55" (2/2) ... [2024-06-04 16:22:55,760 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 16:22:55,778 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 16:22:55,779 INFO L97 edCorrectnessWitness]: Location invariant before [L697-L697] (! multithreaded || (((((0 <= g && 1 <= g) && g <= 3) && g <= 127) && g != 0) && ((g == 1 || g == 2) || g == 3))) && (! multithreaded || (A_locked || g == 3)) [2024-06-04 16:22:55,780 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 16:22:55,780 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-04 16:22:55,780 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-04 16:22:55,780 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] A_locked = 1; [2024-06-04 16:22:55,780 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] multithreaded = 1; [2024-06-04 16:22:55,780 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] B_locked = 1; [2024-06-04 16:22:55,780 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-06-04 16:22:55,780 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] A_locked = 1; [2024-06-04 16:22:55,781 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] A_locked = 0; [2024-06-04 16:22:55,781 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 0; [2024-06-04 16:22:55,802 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 16:22:55,998 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:22:56,009 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 [2024-06-04 16:22:56,092 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:22:56,132 INFO L206 MainTranslator]: Completed translation [2024-06-04 16:22:56,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56 WrapperNode [2024-06-04 16:22:56,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 16:22:56,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 16:22:56,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 16:22:56,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 16:22:56,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,160 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 62 [2024-06-04 16:22:56,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 16:22:56,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 16:22:56,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 16:22:56,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 16:22:56,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,173 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,182 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-04 16:22:56,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,183 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,186 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 16:22:56,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 16:22:56,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 16:22:56,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 16:22:56,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (1/1) ... [2024-06-04 16:22:56,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:22:56,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 16:22:56,227 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) [2024-06-04 16:22:56,232 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 [2024-06-04 16:22:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-04 16:22:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 16:22:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-04 16:22:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-04 16:22:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 16:22:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-04 16:22:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-04 16:22:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-04 16:22:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 16:22:56,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 16:22:56,266 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 16:22:56,353 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 16:22:56,355 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 16:22:56,492 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 16:22:56,492 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 16:22:56,591 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 16:22:56,592 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-04 16:22:56,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:22:56 BoogieIcfgContainer [2024-06-04 16:22:56,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 16:22:56,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 16:22:56,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 16:22:56,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 16:22:56,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:22:54" (1/4) ... [2024-06-04 16:22:56,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28220236 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 04:22:56, skipping insertion in model container [2024-06-04 16:22:56,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 04:22:55" (2/4) ... [2024-06-04 16:22:56,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28220236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 04:22:56, skipping insertion in model container [2024-06-04 16:22:56,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:22:56" (3/4) ... [2024-06-04 16:22:56,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28220236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 04:22:56, skipping insertion in model container [2024-06-04 16:22:56,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:22:56" (4/4) ... [2024-06-04 16:22:56,599 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2024-06-04 16:22:56,612 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 16:22:56,612 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-04 16:22:56,612 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 16:22:56,633 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-04 16:22:56,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 21 transitions, 46 flow [2024-06-04 16:22:56,721 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-06-04 16:22:56,722 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 16:22:56,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-04 16:22:56,723 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 21 transitions, 46 flow [2024-06-04 16:22:56,739 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 15 transitions, 33 flow [2024-06-04 16:22:56,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 16:22:56,757 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;@7291dd11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 16:22:56,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-04 16:22:56,761 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 16:22:56,764 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-04 16:22:56,765 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 16:22:56,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:22:56,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-04 16:22:56,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-04 16:22:56,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:22:56,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1611292504, now seen corresponding path program 1 times [2024-06-04 16:22:56,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:22:56,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651298433] [2024-06-04 16:22:56,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:22:56,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:22:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:22:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:22:57,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:22:57,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651298433] [2024-06-04 16:22:57,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651298433] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:22:57,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:22:57,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 16:22:57,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028510820] [2024-06-04 16:22:57,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:22:57,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 16:22:57,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:22:57,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 16:22:57,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 16:22:57,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-06-04 16:22:57,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-06-04 16:22:57,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:22:57,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-06-04 16:22:57,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:22:57,107 INFO L124 PetriNetUnfolderBase]: 11/40 cut-off events. [2024-06-04 16:22:57,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 16:22:57,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 40 events. 11/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 7 based on Foata normal form. 5/44 useless extension candidates. Maximal degree in co-relation 71. Up to 20 conditions per place. [2024-06-04 16:22:57,109 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 12 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2024-06-04 16:22:57,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 65 flow [2024-06-04 16:22:57,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 16:22:57,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 16:22:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2024-06-04 16:22:57,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3968253968253968 [2024-06-04 16:22:57,120 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 33 flow. Second operand 3 states and 25 transitions. [2024-06-04 16:22:57,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 65 flow [2024-06-04 16:22:57,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-04 16:22:57,124 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 43 flow [2024-06-04 16:22:57,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2024-06-04 16:22:57,129 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2024-06-04 16:22:57,129 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 43 flow [2024-06-04 16:22:57,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-06-04 16:22:57,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:22:57,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:22:57,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 16:22:57,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-04 16:22:57,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:22:57,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1441675839, now seen corresponding path program 1 times [2024-06-04 16:22:57,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:22:57,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731145967] [2024-06-04 16:22:57,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:22:57,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:22:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:22:57,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:22:57,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:22:57,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731145967] [2024-06-04 16:22:57,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731145967] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:22:57,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:22:57,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:22:57,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602455751] [2024-06-04 16:22:57,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:22:57,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:22:57,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:22:57,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:22:57,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:22:57,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-06-04 16:22:57,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 43 flow. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-06-04 16:22:57,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:22:57,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-06-04 16:22:57,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:22:57,386 INFO L124 PetriNetUnfolderBase]: 9/36 cut-off events. [2024-06-04 16:22:57,386 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-04 16:22:57,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 36 events. 9/36 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 3 based on Foata normal form. 2/37 useless extension candidates. Maximal degree in co-relation 72. Up to 16 conditions per place. [2024-06-04 16:22:57,387 INFO L140 encePairwiseOnDemand]: 15/21 looper letters, 11 selfloop transitions, 5 changer transitions 0/17 dead transitions. [2024-06-04 16:22:57,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 79 flow [2024-06-04 16:22:57,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:22:57,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:22:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2024-06-04 16:22:57,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3047619047619048 [2024-06-04 16:22:57,389 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 43 flow. Second operand 5 states and 32 transitions. [2024-06-04 16:22:57,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 79 flow [2024-06-04 16:22:57,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 73 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-04 16:22:57,391 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 51 flow [2024-06-04 16:22:57,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=51, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2024-06-04 16:22:57,392 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2024-06-04 16:22:57,394 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 51 flow [2024-06-04 16:22:57,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-06-04 16:22:57,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:22:57,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:22:57,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-04 16:22:57,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-04 16:22:57,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:22:57,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1244529314, now seen corresponding path program 1 times [2024-06-04 16:22:57,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:22:57,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247103104] [2024-06-04 16:22:57,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:22:57,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:22:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:22:57,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:22:57,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:22:57,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247103104] [2024-06-04 16:22:57,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247103104] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:22:57,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:22:57,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-04 16:22:57,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104114151] [2024-06-04 16:22:57,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:22:57,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-04 16:22:57,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:22:57,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-04 16:22:57,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-04 16:22:57,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-06-04 16:22:57,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-06-04 16:22:57,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:22:57,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-06-04 16:22:57,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:22:57,532 INFO L124 PetriNetUnfolderBase]: 8/30 cut-off events. [2024-06-04 16:22:57,532 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-04 16:22:57,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 30 events. 8/30 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 24 event pairs, 2 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 63. Up to 12 conditions per place. [2024-06-04 16:22:57,533 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2024-06-04 16:22:57,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 16 transitions, 79 flow [2024-06-04 16:22:57,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-04 16:22:57,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-04 16:22:57,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2024-06-04 16:22:57,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-06-04 16:22:57,535 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 51 flow. Second operand 4 states and 28 transitions. [2024-06-04 16:22:57,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 16 transitions, 79 flow [2024-06-04 16:22:57,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 64 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-04 16:22:57,537 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2024-06-04 16:22:57,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2024-06-04 16:22:57,538 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2024-06-04 16:22:57,538 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2024-06-04 16:22:57,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-06-04 16:22:57,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-04 16:22:57,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-04 16:22:57,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-04 16:22:57,542 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-04 16:22:57,545 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-04 16:22:57,545 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-04 16:22:57,549 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-04 16:22:57,550 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-04 16:22:57,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 04:22:57 BasicIcfg [2024-06-04 16:22:57,551 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-04 16:22:57,551 INFO L158 Benchmark]: Toolchain (without parser) took 1798.24ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 112.5MB in the beginning and 108.4MB in the end (delta: 4.1MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2024-06-04 16:22:57,553 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 157.3MB. Free memory was 124.9MB in the beginning and 124.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 16:22:57,554 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 157.3MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 16:22:57,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.74ms. Allocated memory is still 157.3MB. Free memory was 112.5MB in the beginning and 87.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-04 16:22:57,556 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.58ms. Allocated memory is still 157.3MB. Free memory was 87.3MB in the beginning and 85.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-04 16:22:57,556 INFO L158 Benchmark]: Boogie Preprocessor took 29.39ms. Allocated memory is still 157.3MB. Free memory was 85.3MB in the beginning and 83.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-04 16:22:57,556 INFO L158 Benchmark]: RCFGBuilder took 401.41ms. Allocated memory is still 157.3MB. Free memory was 83.2MB in the beginning and 54.5MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-06-04 16:22:57,557 INFO L158 Benchmark]: TraceAbstraction took 957.16ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 53.8MB in the beginning and 108.4MB in the end (delta: -54.5MB). Peak memory consumption was 206.0kB. Max. memory is 16.1GB. [2024-06-04 16:22:57,561 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 157.3MB. Free memory was 124.9MB in the beginning and 124.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 157.3MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.74ms. Allocated memory is still 157.3MB. Free memory was 112.5MB in the beginning and 87.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.58ms. Allocated memory is still 157.3MB. Free memory was 87.3MB in the beginning and 85.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.39ms. Allocated memory is still 157.3MB. Free memory was 85.3MB in the beginning and 83.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.41ms. Allocated memory is still 157.3MB. Free memory was 83.2MB in the beginning and 54.5MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 957.16ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 53.8MB in the beginning and 108.4MB in the end (delta: -54.5MB). Peak memory consumption was 206.0kB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: 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, 33 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: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 1 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 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! [2024-06-04 16:22:57,591 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