./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/protection/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/protection/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 [2024-06-03 19:00:43,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 19:00:43,406 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 19:00:43,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 19:00:43,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 19:00:43,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 19:00:43,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 19:00:43,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 19:00:43,446 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 19:00:43,450 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 19:00:43,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 19:00:43,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 19:00:43,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 19:00:43,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 19:00:43,453 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 19:00:43,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 19:00:43,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 19:00:43,454 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 19:00:43,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 19:00:43,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 19:00:43,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 19:00:43,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 19:00:43,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 19:00:43,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 19:00:43,457 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 19:00:43,457 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 19:00:43,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 19:00:43,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 19:00:43,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 19:00:43,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 19:00:43,460 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 19:00:43,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 19:00:43,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 19:00:43,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 19:00:43,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 19:00:43,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 19:00:43,461 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 19:00:43,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 19:00:43,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 19:00:43,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 19:00:43,462 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 19:00:43,462 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 19:00:43,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 19:00:43,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 19:00:43,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 19:00:43,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 19:00:43,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 19:00:43,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 19:00:43,766 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 19:00:43,767 INFO L431 ainManager$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 [2024-06-03 19:00:44,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 19:00:45,232 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 19:00:45,233 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-06-03 19:00:45,252 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4124896e6/7d3d9b460cbc4d75af5cfe9c7cfcb75d/FLAGedef07ebd [2024-06-03 19:00:45,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4124896e6/7d3d9b460cbc4d75af5cfe9c7cfcb75d [2024-06-03 19:00:45,269 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 19:00:45,269 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 19:00:45,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/13-privatized_44-traces-mine2_true.yml/witness.yml [2024-06-03 19:00:45,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 19:00:45,381 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 19:00:45,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 19:00:45,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 19:00:45,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 19:00:45,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 07:00:45" (1/2) ... [2024-06-03 19:00:45,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d01ed29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:00:45, skipping insertion in model container [2024-06-03 19:00:45,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 07:00:45" (1/2) ... [2024-06-03 19:00:45,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21d4c125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:00:45, skipping insertion in model container [2024-06-03 19:00:45,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 07:00:45" (2/2) ... [2024-06-03 19:00:45,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d01ed29 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45, skipping insertion in model container [2024-06-03 19:00:45,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 07:00:45" (2/2) ... [2024-06-03 19:00:45,394 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 19:00:45,454 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 19:00:45,455 INFO L97 edCorrectnessWitness]: Location invariant before [L697-L697] (! multithreaded || (A_locked || g == 3)) && (! multithreaded || (((((0 <= g && 1 <= g) && g <= 3) && g <= 127) && g != 0) && ((g == 1 || g == 2) || g == 3))) [2024-06-03 19:00:45,455 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 19:00:45,455 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-03 19:00:45,456 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-03 19:00:45,456 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] A_locked = 1; [2024-06-03 19:00:45,456 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] A_locked = 1; [2024-06-03 19:00:45,456 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] multithreaded = 1; [2024-06-03 19:00:45,456 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] A_locked = 0; [2024-06-03 19:00:45,456 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-06-03 19:00:45,457 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 0; [2024-06-03 19:00:45,457 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] B_locked = 1; [2024-06-03 19:00:45,520 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 19:00:45,847 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 19:00:45,858 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 [2024-06-03 19:00:45,952 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 19:00:45,987 INFO L206 MainTranslator]: Completed translation [2024-06-03 19:00:45,987 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45 WrapperNode [2024-06-03 19:00:45,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 19:00:45,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 19:00:45,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 19:00:45,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 19:00:45,995 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 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,016 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 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,034 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 62 [2024-06-03 19:00:46,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 19:00:46,035 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 19:00:46,035 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 19:00:46,035 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 19:00:46,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,074 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]. [2024-06-03 19:00:46,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 19:00:46,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 19:00:46,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 19:00:46,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 19:00:46,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (1/1) ... [2024-06-03 19:00:46,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 19:00:46,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 19:00:46,130 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) [2024-06-03 19:00:46,138 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 [2024-06-03 19:00:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-03 19:00:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 19:00:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-03 19:00:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-03 19:00:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 19:00:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-03 19:00:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-03 19:00:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-03 19:00:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 19:00:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 19:00:46,176 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-03 19:00:46,330 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 19:00:46,332 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 19:00:46,545 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 19:00:46,548 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 19:00:46,683 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 19:00:46,683 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-03 19:00:46,684 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 07:00:46 BoogieIcfgContainer [2024-06-03 19:00:46,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 19:00:46,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 19:00:46,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 19:00:46,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 19:00:46,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 07:00:45" (1/4) ... [2024-06-03 19:00:46,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ba839e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 07:00:46, skipping insertion in model container [2024-06-03 19:00:46,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 07:00:45" (2/4) ... [2024-06-03 19:00:46,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ba839e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 07:00:46, skipping insertion in model container [2024-06-03 19:00:46,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:00:45" (3/4) ... [2024-06-03 19:00:46,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ba839e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 07:00:46, skipping insertion in model container [2024-06-03 19:00:46,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 07:00:46" (4/4) ... [2024-06-03 19:00:46,694 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2024-06-03 19:00:46,711 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 19:00:46,711 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-03 19:00:46,711 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 19:00:46,743 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-03 19:00:46,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 21 transitions, 46 flow [2024-06-03 19:00:46,804 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-06-03 19:00:46,804 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 19:00:46,806 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. [2024-06-03 19:00:46,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 21 transitions, 46 flow [2024-06-03 19:00:46,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 15 transitions, 33 flow [2024-06-03 19:00:46,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 19:00:46,829 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;@1b07c731, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 19:00:46,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-03 19:00:46,838 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 19:00:46,838 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-03 19:00:46,839 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 19:00:46,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 19:00:46,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-03 19:00:46,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 19:00:46,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 19:00:46,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1611292504, now seen corresponding path program 1 times [2024-06-03 19:00:46,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 19:00:46,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000104362] [2024-06-03 19:00:46,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 19:00:46,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 19:00:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 19:00:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 19:00:47,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 19:00:47,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000104362] [2024-06-03 19:00:47,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000104362] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 19:00:47,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 19:00:47,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 19:00:47,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724282888] [2024-06-03 19:00:47,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 19:00:47,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 19:00:47,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 19:00:47,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 19:00:47,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 19:00:47,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-06-03 19:00:47,212 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) [2024-06-03 19:00:47,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 19:00:47,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-06-03 19:00:47,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 19:00:47,258 INFO L124 PetriNetUnfolderBase]: 11/40 cut-off events. [2024-06-03 19:00:47,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 19:00:47,260 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. [2024-06-03 19:00:47,261 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 12 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2024-06-03 19:00:47,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 65 flow [2024-06-03 19:00:47,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 19:00:47,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 19:00:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2024-06-03 19:00:47,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3968253968253968 [2024-06-03 19:00:47,274 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 33 flow. Second operand 3 states and 25 transitions. [2024-06-03 19:00:47,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 65 flow [2024-06-03 19:00:47,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 19:00:47,279 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 43 flow [2024-06-03 19:00:47,280 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} [2024-06-03 19:00:47,283 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2024-06-03 19:00:47,284 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 43 flow [2024-06-03 19:00:47,284 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) [2024-06-03 19:00:47,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 19:00:47,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 19:00:47,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 19:00:47,285 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 19:00:47,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 19:00:47,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1441675839, now seen corresponding path program 1 times [2024-06-03 19:00:47,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 19:00:47,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031677416] [2024-06-03 19:00:47,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 19:00:47,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 19:00:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 19:00:47,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 19:00:47,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 19:00:47,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031677416] [2024-06-03 19:00:47,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031677416] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 19:00:47,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 19:00:47,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 19:00:47,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737776572] [2024-06-03 19:00:47,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 19:00:47,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 19:00:47,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 19:00:47,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 19:00:47,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-03 19:00:47,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-06-03 19:00:47,478 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) [2024-06-03 19:00:47,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 19:00:47,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-06-03 19:00:47,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 19:00:47,512 INFO L124 PetriNetUnfolderBase]: 9/36 cut-off events. [2024-06-03 19:00:47,512 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-03 19:00:47,513 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. [2024-06-03 19:00:47,513 INFO L140 encePairwiseOnDemand]: 15/21 looper letters, 11 selfloop transitions, 5 changer transitions 0/17 dead transitions. [2024-06-03 19:00:47,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 79 flow [2024-06-03 19:00:47,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 19:00:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 19:00:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2024-06-03 19:00:47,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3047619047619048 [2024-06-03 19:00:47,515 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 43 flow. Second operand 5 states and 32 transitions. [2024-06-03 19:00:47,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 79 flow [2024-06-03 19:00:47,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 73 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-03 19:00:47,516 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 51 flow [2024-06-03 19:00:47,516 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} [2024-06-03 19:00:47,517 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2024-06-03 19:00:47,517 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 51 flow [2024-06-03 19:00:47,517 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) [2024-06-03 19:00:47,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 19:00:47,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 19:00:47,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-03 19:00:47,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 19:00:47,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 19:00:47,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1244529314, now seen corresponding path program 1 times [2024-06-03 19:00:47,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 19:00:47,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072527302] [2024-06-03 19:00:47,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 19:00:47,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 19:00:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 19:00:47,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 19:00:47,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 19:00:47,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072527302] [2024-06-03 19:00:47,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072527302] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 19:00:47,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 19:00:47,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 19:00:47,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692460301] [2024-06-03 19:00:47,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 19:00:47,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-03 19:00:47,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 19:00:47,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-03 19:00:47,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-03 19:00:47,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-06-03 19:00:47,618 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) [2024-06-03 19:00:47,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 19:00:47,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-06-03 19:00:47,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 19:00:47,657 INFO L124 PetriNetUnfolderBase]: 8/30 cut-off events. [2024-06-03 19:00:47,657 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-03 19:00:47,658 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. [2024-06-03 19:00:47,658 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2024-06-03 19:00:47,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 16 transitions, 79 flow [2024-06-03 19:00:47,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-03 19:00:47,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-03 19:00:47,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2024-06-03 19:00:47,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-06-03 19:00:47,661 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 51 flow. Second operand 4 states and 28 transitions. [2024-06-03 19:00:47,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 16 transitions, 79 flow [2024-06-03 19:00:47,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 64 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-03 19:00:47,663 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2024-06-03 19:00:47,663 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} [2024-06-03 19:00:47,664 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2024-06-03 19:00:47,664 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2024-06-03 19:00:47,664 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) [2024-06-03 19:00:47,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-03 19:00:47,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-03 19:00:47,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-03 19:00:47,667 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-03 19:00:47,673 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 19:00:47,673 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 19:00:47,677 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-03 19:00:47,677 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-03 19:00:47,678 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 07:00:47 BasicIcfg [2024-06-03 19:00:47,678 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 19:00:47,678 INFO L158 Benchmark]: Toolchain (without parser) took 2297.62ms. Allocated memory was 142.6MB in the beginning and 220.2MB in the end (delta: 77.6MB). Free memory was 66.6MB in the beginning and 123.4MB in the end (delta: -56.8MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-06-03 19:00:47,679 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 142.6MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 19:00:47,679 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 69.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 19:00:47,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.27ms. Allocated memory was 142.6MB in the beginning and 220.2MB in the end (delta: 77.6MB). Free memory was 66.3MB in the beginning and 171.6MB in the end (delta: -105.3MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-06-03 19:00:47,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.95ms. Allocated memory is still 220.2MB. Free memory was 171.6MB in the beginning and 169.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 19:00:47,680 INFO L158 Benchmark]: Boogie Preprocessor took 59.54ms. Allocated memory is still 220.2MB. Free memory was 169.5MB in the beginning and 167.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 19:00:47,681 INFO L158 Benchmark]: RCFGBuilder took 589.46ms. Allocated memory is still 220.2MB. Free memory was 167.4MB in the beginning and 138.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-06-03 19:00:47,681 INFO L158 Benchmark]: TraceAbstraction took 991.10ms. Allocated memory is still 220.2MB. Free memory was 138.0MB in the beginning and 123.4MB in the end (delta: 14.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-06-03 19:00:47,683 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 142.6MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 69.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 604.27ms. Allocated memory was 142.6MB in the beginning and 220.2MB in the end (delta: 77.6MB). Free memory was 66.3MB in the beginning and 171.6MB in the end (delta: -105.3MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.95ms. Allocated memory is still 220.2MB. Free memory was 171.6MB in the beginning and 169.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.54ms. Allocated memory is still 220.2MB. Free memory was 169.5MB in the beginning and 167.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 589.46ms. Allocated memory is still 220.2MB. Free memory was 167.4MB in the beginning and 138.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 991.10ms. Allocated memory is still 220.2MB. Free memory was 138.0MB in the beginning and 123.4MB in the end (delta: 14.6MB). Peak memory consumption was 12.1MB. 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: 0.0s, 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! [2024-06-03 19:00:47,716 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