./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c --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/chl-poker-hand-symm.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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/weaver/chl-poker-hand-symm.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/chl-poker-hand-symm.wvr.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-cde23df-m [2024-06-14 14:15:25,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:15:25,303 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:15:25,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:15:25,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:15:25,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:15:25,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:15:25,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:15:25,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:15:25,320 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:15:25,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:15:25,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:15:25,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:15:25,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:15:25,322 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:15:25,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:15:25,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:15:25,323 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:15:25,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:15:25,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:15:25,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:15:25,324 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:15:25,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:15:25,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:15:25,325 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:15:25,325 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:15:25,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:15:25,326 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:15:25,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:15:25,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:15:25,327 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:15:25,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:15:25,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:15:25,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:15:25,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:15:25,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:15:25,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:15:25,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:15:25,329 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:15:25,329 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:15:25,329 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:15:25,330 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:15:25,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:15:25,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:15:25,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:15:25,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:15:25,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:15:25,535 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:15:25,536 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:15:25,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2024-06-14 14:15:26,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:15:26,852 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:15:26,852 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2024-06-14 14:15:26,865 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49a271aac/7831ff8258804dc1bfc82e47fd56ac5c/FLAGae6137571 [2024-06-14 14:15:26,876 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49a271aac/7831ff8258804dc1bfc82e47fd56ac5c [2024-06-14 14:15:26,878 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:15:26,879 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:15:26,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/chl-poker-hand-symm.wvr.yml/witness.yml [2024-06-14 14:15:26,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:15:26,999 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:15:27,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:15:27,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:15:27,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:15:27,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:15:26" (1/2) ... [2024-06-14 14:15:27,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5f5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:15:27, skipping insertion in model container [2024-06-14 14:15:27,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:15:26" (1/2) ... [2024-06-14 14:15:27,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@79fd6a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:15:27, skipping insertion in model container [2024-06-14 14:15:27,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:15:26" (2/2) ... [2024-06-14 14:15:27,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5f5dc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27, skipping insertion in model container [2024-06-14 14:15:27,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:15:26" (2/2) ... [2024-06-14 14:15:27,011 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:15:27,037 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:15:27,038 INFO L97 edCorrectnessWitness]: Location invariant before [L230-L230] (((((! multithreaded || i2_16 == 0) && (! multithreaded || (((0 <= i1_9 && 0 <= i1_14) && i2_11 == 0) && i2_16 == 0))) && (! multithreaded || i2_11 == 0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((0LL - (long long )i2_11) + (long long )i2_16 >= 0LL && (long long )i1_9 + (long long )i2_11 >= 0LL) && (long long )i1_9 + (long long )i2_16 >= 0LL) && (long long )i2_11 + (long long )i2_16 >= 0LL) && (long long )i1_14 + (long long )i1_9 >= 0LL) && (long long )i1_14 + (long long )i2_11 >= 0LL) && (long long )i1_14 + (long long )i2_16 >= 0LL) && (long long )break_10 + (long long )i1_9 >= 0LL) && (long long )break_10 + (long long )i2_11 >= 0LL) && (long long )break_10 + (long long )i1_14 >= 0LL) && (long long )break_10 + (long long )i2_16 >= 0LL) && (long long )break_10 + (long long )break_12 >= 0LL) && (long long )break_10 + (long long )break_15 >= 0LL) && (long long )break_10 + (long long )break_17 >= 0LL) && (long long )break_12 + (long long )i1_9 >= 0LL) && (long long )break_12 + (long long )i2_11 >= 0LL) && (long long )break_12 + (long long )i1_14 >= 0LL) && (long long )break_12 + (long long )i2_16 >= 0LL) && (long long )break_12 + (long long )break_15 >= 0LL) && (long long )break_12 + (long long )break_17 >= 0LL) && (long long )break_15 + (long long )i1_9 >= 0LL) && (long long )break_15 + (long long )i2_11 >= 0LL) && (long long )break_15 + (long long )i1_14 >= 0LL) && (long long )break_15 + (long long )i2_16 >= 0LL) && (long long )break_15 + (long long )break_17 >= 0LL) && (long long )break_17 + (long long )i1_9 >= 0LL) && (long long )break_17 + (long long )i2_11 >= 0LL) && (long long )break_17 + (long long )i1_14 >= 0LL) && (long long )break_17 + (long long )i2_16 >= 0LL) && (0LL - (long long )i2_11) - (long long )i2_16 >= 0LL) && (long long )i1_9 - (long long )i2_11 >= 0LL) && (long long )i1_9 - (long long )i2_16 >= 0LL) && (long long )i2_11 - (long long )i2_16 >= 0LL) && (long long )i1_14 - (long long )i2_11 >= 0LL) && (long long )i1_14 - (long long )i2_16 >= 0LL) && (long long )break_10 - (long long )i2_11 >= 0LL) && (long long )break_10 - (long long )i2_16 >= 0LL) && (long long )break_12 - (long long )i2_11 >= 0LL) && (long long )break_12 - (long long )i2_16 >= 0LL) && (long long )break_15 - (long long )i2_11 >= 0LL) && (long long )break_15 - (long long )i2_16 >= 0LL) && (long long )break_17 - (long long )i2_11 >= 0LL) && (long long )break_17 - (long long )i2_16 >= 0LL))) && (! multithreaded || 0 <= i1_14)) && (! multithreaded || 0 <= i1_9) [2024-06-14 14:15:27,039 INFO L97 edCorrectnessWitness]: Location invariant before [L231-L231] (((((! multithreaded || i2_16 == 0) && (! multithreaded || (((0 <= i1_9 && 0 <= i1_14) && i2_11 == 0) && i2_16 == 0))) && (! multithreaded || i2_11 == 0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((0LL - (long long )i2_11) + (long long )i2_16 >= 0LL && (long long )i1_9 + (long long )i2_11 >= 0LL) && (long long )i1_9 + (long long )i2_16 >= 0LL) && (long long )i2_11 + (long long )i2_16 >= 0LL) && (long long )i1_14 + (long long )i1_9 >= 0LL) && (long long )i1_14 + (long long )i2_11 >= 0LL) && (long long )i1_14 + (long long )i2_16 >= 0LL) && (long long )break_10 + (long long )i1_9 >= 0LL) && (long long )break_10 + (long long )i2_11 >= 0LL) && (long long )break_10 + (long long )i1_14 >= 0LL) && (long long )break_10 + (long long )i2_16 >= 0LL) && (long long )break_10 + (long long )break_12 >= 0LL) && (long long )break_10 + (long long )break_15 >= 0LL) && (long long )break_10 + (long long )break_17 >= 0LL) && (long long )break_12 + (long long )i1_9 >= 0LL) && (long long )break_12 + (long long )i2_11 >= 0LL) && (long long )break_12 + (long long )i1_14 >= 0LL) && (long long )break_12 + (long long )i2_16 >= 0LL) && (long long )break_12 + (long long )break_15 >= 0LL) && (long long )break_12 + (long long )break_17 >= 0LL) && (long long )break_15 + (long long )i1_9 >= 0LL) && (long long )break_15 + (long long )i2_11 >= 0LL) && (long long )break_15 + (long long )i1_14 >= 0LL) && (long long )break_15 + (long long )i2_16 >= 0LL) && (long long )break_15 + (long long )break_17 >= 0LL) && (long long )break_17 + (long long )i1_9 >= 0LL) && (long long )break_17 + (long long )i2_11 >= 0LL) && (long long )break_17 + (long long )i1_14 >= 0LL) && (long long )break_17 + (long long )i2_16 >= 0LL) && (0LL - (long long )i2_11) - (long long )i2_16 >= 0LL) && (long long )i1_9 - (long long )i2_11 >= 0LL) && (long long )i1_9 - (long long )i2_16 >= 0LL) && (long long )i2_11 - (long long )i2_16 >= 0LL) && (long long )i1_14 - (long long )i2_11 >= 0LL) && (long long )i1_14 - (long long )i2_16 >= 0LL) && (long long )break_10 - (long long )i2_11 >= 0LL) && (long long )break_10 - (long long )i2_16 >= 0LL) && (long long )break_12 - (long long )i2_11 >= 0LL) && (long long )break_12 - (long long )i2_16 >= 0LL) && (long long )break_15 - (long long )i2_11 >= 0LL) && (long long )break_15 - (long long )i2_16 >= 0LL) && (long long )break_17 - (long long )i2_11 >= 0LL) && (long long )break_17 - (long long )i2_16 >= 0LL))) && (! multithreaded || 0 <= i1_14)) && (! multithreaded || 0 <= i1_9) [2024-06-14 14:15:27,039 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:15:27,039 INFO L106 edCorrectnessWitness]: ghost_update [L229-L229] multithreaded = 1; [2024-06-14 14:15:27,065 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:15:27,320 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:15:27,331 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:15:27,439 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:15:27,453 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:15:27,455 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27 WrapperNode [2024-06-14 14:15:27,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:15:27,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:15:27,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:15:27,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:15:27,461 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 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,488 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 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,565 INFO L138 Inliner]: procedures = 24, calls = 298, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 1566 [2024-06-14 14:15:27,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:15:27,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:15:27,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:15:27,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:15:27,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,611 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,665 INFO L175 MemorySlicer]: Split 186 memory accesses to 2 slices as follows [2, 184]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 8 writes are split as follows [0, 8]. [2024-06-14 14:15:27,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,737 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:15:27,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:15:27,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:15:27,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:15:27,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (1/1) ... [2024-06-14 14:15:27,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:15:27,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:15:27,784 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) [2024-06-14 14:15:27,803 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 [2024-06-14 14:15:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:15:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:15:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:15:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:15:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:15:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:15:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 14:15:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-14 14:15:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-14 14:15:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:15:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:15:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-14 14:15:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:15:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:15:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-14 14:15:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-14 14:15:27,823 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:15:27,976 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:15:27,978 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:15:29,164 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:15:29,164 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:15:30,349 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:15:30,349 INFO L320 CfgBuilder]: Removed 12 assume(true) statements. [2024-06-14 14:15:30,350 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:15:30 BoogieIcfgContainer [2024-06-14 14:15:30,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:15:30,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:15:30,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:15:30,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:15:30,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:15:26" (1/4) ... [2024-06-14 14:15:30,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbc0ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:15:30, skipping insertion in model container [2024-06-14 14:15:30,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:15:26" (2/4) ... [2024-06-14 14:15:30,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbc0ca9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:15:30, skipping insertion in model container [2024-06-14 14:15:30,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:27" (3/4) ... [2024-06-14 14:15:30,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbc0ca9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:15:30, skipping insertion in model container [2024-06-14 14:15:30,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:15:30" (4/4) ... [2024-06-14 14:15:30,356 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2024-06-14 14:15:30,370 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:15:30,370 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-14 14:15:30,370 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:15:30,625 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-14 14:15:30,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 98 transitions, 210 flow [2024-06-14 14:15:30,687 INFO L124 PetriNetUnfolderBase]: 28/96 cut-off events. [2024-06-14 14:15:30,687 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-14 14:15:30,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 96 events. 28/96 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 251 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 75. Up to 7 conditions per place. [2024-06-14 14:15:30,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 98 transitions, 210 flow [2024-06-14 14:15:30,693 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 94 transitions, 197 flow [2024-06-14 14:15:30,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:15:30,737 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;@2e6304ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:15:30,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-14 14:15:30,759 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:15:30,759 INFO L124 PetriNetUnfolderBase]: 8/24 cut-off events. [2024-06-14 14:15:30,759 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:15:30,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:30,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:30,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 14:15:30,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:30,765 INFO L85 PathProgramCache]: Analyzing trace with hash 769771704, now seen corresponding path program 1 times [2024-06-14 14:15:30,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:30,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934714520] [2024-06-14 14:15:30,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:30,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:15:31,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:31,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934714520] [2024-06-14 14:15:31,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934714520] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:31,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:31,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:15:31,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285755870] [2024-06-14 14:15:31,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:31,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:15:31,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:31,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:15:31,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:15:31,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 98 [2024-06-14 14:15:31,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 94 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-06-14 14:15:31,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:31,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 98 [2024-06-14 14:15:31,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:32,452 INFO L124 PetriNetUnfolderBase]: 2533/3825 cut-off events. [2024-06-14 14:15:32,452 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-06-14 14:15:32,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7699 conditions, 3825 events. 2533/3825 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 18386 event pairs, 1725 based on Foata normal form. 0/3003 useless extension candidates. Maximal degree in co-relation 7511. Up to 3793 conditions per place. [2024-06-14 14:15:32,474 INFO L140 encePairwiseOnDemand]: 85/98 looper letters, 82 selfloop transitions, 8 changer transitions 1/94 dead transitions. [2024-06-14 14:15:32,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 94 transitions, 379 flow [2024-06-14 14:15:32,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:32,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:32,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-06-14 14:15:32,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3877551020408163 [2024-06-14 14:15:32,486 INFO L175 Difference]: Start difference. First operand has 73 places, 94 transitions, 197 flow. Second operand 3 states and 114 transitions. [2024-06-14 14:15:32,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 94 transitions, 379 flow [2024-06-14 14:15:32,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 94 transitions, 374 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 14:15:32,494 INFO L231 Difference]: Finished difference. Result has 73 places, 93 transitions, 223 flow [2024-06-14 14:15:32,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=73, PETRI_TRANSITIONS=93} [2024-06-14 14:15:32,498 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 0 predicate places. [2024-06-14 14:15:32,499 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 93 transitions, 223 flow [2024-06-14 14:15:32,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-06-14 14:15:32,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:32,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:32,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:15:32,500 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 14:15:32,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:32,501 INFO L85 PathProgramCache]: Analyzing trace with hash 289088565, now seen corresponding path program 1 times [2024-06-14 14:15:32,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:32,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658665674] [2024-06-14 14:15:32,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:32,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-06-14 14:15:32,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:32,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658665674] [2024-06-14 14:15:32,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658665674] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:32,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:32,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:15:32,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056027734] [2024-06-14 14:15:32,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:32,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:15:32,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:32,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:15:32,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:15:32,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 98 [2024-06-14 14:15:32,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 93 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-06-14 14:15:32,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:32,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 98 [2024-06-14 14:15:32,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:33,465 INFO L124 PetriNetUnfolderBase]: 2502/3772 cut-off events. [2024-06-14 14:15:33,466 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-14 14:15:33,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7585 conditions, 3772 events. 2502/3772 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 17896 event pairs, 1702 based on Foata normal form. 1/2963 useless extension candidates. Maximal degree in co-relation 7532. Up to 3742 conditions per place. [2024-06-14 14:15:33,479 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 88 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2024-06-14 14:15:33,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 95 transitions, 411 flow [2024-06-14 14:15:33,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:33,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:33,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-06-14 14:15:33,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-06-14 14:15:33,483 INFO L175 Difference]: Start difference. First operand has 73 places, 93 transitions, 223 flow. Second operand 3 states and 105 transitions. [2024-06-14 14:15:33,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 95 transitions, 411 flow [2024-06-14 14:15:33,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 95 transitions, 403 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:15:33,486 INFO L231 Difference]: Finished difference. Result has 74 places, 95 transitions, 237 flow [2024-06-14 14:15:33,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=74, PETRI_TRANSITIONS=95} [2024-06-14 14:15:33,487 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2024-06-14 14:15:33,488 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 95 transitions, 237 flow [2024-06-14 14:15:33,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-06-14 14:15:33,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:33,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:33,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:15:33,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 14:15:33,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:33,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1276267472, now seen corresponding path program 1 times [2024-06-14 14:15:33,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:33,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227192457] [2024-06-14 14:15:33,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:33,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-06-14 14:15:33,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:33,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227192457] [2024-06-14 14:15:33,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227192457] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:33,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:33,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:15:33,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090269552] [2024-06-14 14:15:33,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:33,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:15:33,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:33,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:15:33,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:15:33,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 98 [2024-06-14 14:15:33,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 95 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:15:33,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:33,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 98 [2024-06-14 14:15:33,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:34,337 INFO L124 PetriNetUnfolderBase]: 2502/3774 cut-off events. [2024-06-14 14:15:34,338 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:15:34,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7595 conditions, 3774 events. 2502/3774 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 17904 event pairs, 1702 based on Foata normal form. 0/2962 useless extension candidates. Maximal degree in co-relation 7573. Up to 3744 conditions per place. [2024-06-14 14:15:34,353 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 90 selfloop transitions, 4 changer transitions 0/97 dead transitions. [2024-06-14 14:15:34,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 97 transitions, 429 flow [2024-06-14 14:15:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:34,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-06-14 14:15:34,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-06-14 14:15:34,357 INFO L175 Difference]: Start difference. First operand has 74 places, 95 transitions, 237 flow. Second operand 3 states and 105 transitions. [2024-06-14 14:15:34,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 97 transitions, 429 flow [2024-06-14 14:15:34,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 97 transitions, 425 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:15:34,361 INFO L231 Difference]: Finished difference. Result has 76 places, 97 transitions, 255 flow [2024-06-14 14:15:34,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=76, PETRI_TRANSITIONS=97} [2024-06-14 14:15:34,362 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 3 predicate places. [2024-06-14 14:15:34,362 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 97 transitions, 255 flow [2024-06-14 14:15:34,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:15:34,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:34,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:34,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:15:34,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 14:15:34,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:34,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1480247134, now seen corresponding path program 1 times [2024-06-14 14:15:34,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:34,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300357050] [2024-06-14 14:15:34,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:34,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:34,486 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-06-14 14:15:34,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:34,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300357050] [2024-06-14 14:15:34,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300357050] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:15:34,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439760540] [2024-06-14 14:15:34,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:34,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:15:34,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:15:34,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-14 14:15:34,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-14 14:15:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:34,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 5 conjunts are in the unsatisfiable core [2024-06-14 14:15:34,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:15:34,921 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-06-14 14:15:34,921 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 14:15:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-06-14 14:15:34,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439760540] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-14 14:15:34,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-14 14:15:34,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-06-14 14:15:34,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622340641] [2024-06-14 14:15:34,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-14 14:15:34,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 14:15:34,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:34,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 14:15:34,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-06-14 14:15:34,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 98 [2024-06-14 14:15:34,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 97 transitions, 255 flow. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2024-06-14 14:15:34,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:34,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 98 [2024-06-14 14:15:34,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:35,822 INFO L124 PetriNetUnfolderBase]: 2502/3790 cut-off events. [2024-06-14 14:15:35,822 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-14 14:15:35,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7651 conditions, 3790 events. 2502/3790 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 17904 event pairs, 1702 based on Foata normal form. 7/2986 useless extension candidates. Maximal degree in co-relation 7605. Up to 3738 conditions per place. [2024-06-14 14:15:35,837 INFO L140 encePairwiseOnDemand]: 81/98 looper letters, 78 selfloop transitions, 32 changer transitions 0/113 dead transitions. [2024-06-14 14:15:35,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 113 transitions, 539 flow [2024-06-14 14:15:35,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:15:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:15:35,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2024-06-14 14:15:35,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.21173469387755103 [2024-06-14 14:15:35,839 INFO L175 Difference]: Start difference. First operand has 76 places, 97 transitions, 255 flow. Second operand 8 states and 166 transitions. [2024-06-14 14:15:35,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 113 transitions, 539 flow [2024-06-14 14:15:35,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 113 transitions, 535 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:15:35,841 INFO L231 Difference]: Finished difference. Result has 85 places, 113 transitions, 437 flow [2024-06-14 14:15:35,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=437, PETRI_PLACES=85, PETRI_TRANSITIONS=113} [2024-06-14 14:15:35,842 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 12 predicate places. [2024-06-14 14:15:35,842 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 113 transitions, 437 flow [2024-06-14 14:15:35,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2024-06-14 14:15:35,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:35,843 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:35,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-14 14:15:36,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:15:36,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 14:15:36,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:36,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1466200040, now seen corresponding path program 2 times [2024-06-14 14:15:36,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:36,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877697549] [2024-06-14 14:15:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:36,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:36,266 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-06-14 14:15:36,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:36,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877697549] [2024-06-14 14:15:36,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877697549] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:15:36,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810748265] [2024-06-14 14:15:36,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-14 14:15:36,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:15:36,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:15:36,269 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-14 14:15:36,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-14 14:15:36,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-06-14 14:15:36,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-14 14:15:36,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 7 conjunts are in the unsatisfiable core [2024-06-14 14:15:36,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:15:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-06-14 14:15:36,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-14 14:15:36,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810748265] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:36,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-14 14:15:36,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2024-06-14 14:15:36,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240210029] [2024-06-14 14:15:36,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:36,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:15:36,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:36,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:15:36,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:15:36,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 98 [2024-06-14 14:15:36,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 113 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-06-14 14:15:36,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:36,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 98 [2024-06-14 14:15:36,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:37,603 INFO L124 PetriNetUnfolderBase]: 2502/3775 cut-off events. [2024-06-14 14:15:37,603 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-14 14:15:37,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7698 conditions, 3775 events. 2502/3775 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 17683 event pairs, 1702 based on Foata normal form. 576/3557 useless extension candidates. Maximal degree in co-relation 7632. Up to 3761 conditions per place. [2024-06-14 14:15:37,609 INFO L140 encePairwiseOnDemand]: 95/98 looper letters, 0 selfloop transitions, 0 changer transitions 111/111 dead transitions. [2024-06-14 14:15:37,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 111 transitions, 653 flow [2024-06-14 14:15:37,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:37,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:37,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-06-14 14:15:37,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3299319727891156 [2024-06-14 14:15:37,614 INFO L175 Difference]: Start difference. First operand has 85 places, 113 transitions, 437 flow. Second operand 3 states and 97 transitions. [2024-06-14 14:15:37,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 111 transitions, 653 flow [2024-06-14 14:15:37,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 111 transitions, 603 flow, removed 19 selfloop flow, removed 3 redundant places. [2024-06-14 14:15:37,619 INFO L231 Difference]: Finished difference. Result has 82 places, 0 transitions, 0 flow [2024-06-14 14:15:37,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=82, PETRI_TRANSITIONS=0} [2024-06-14 14:15:37,621 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 9 predicate places. [2024-06-14 14:15:37,621 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 0 transitions, 0 flow [2024-06-14 14:15:37,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-06-14 14:15:37,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-14 14:15:37,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-14 14:15:37,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-14 14:15:37,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-14 14:15:37,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-06-14 14:15:37,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:15:37,841 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-06-14 14:15:37,844 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:15:37,844 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:15:37,847 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-14 14:15:37,847 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-14 14:15:37,848 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:15:37 BasicIcfg [2024-06-14 14:15:37,848 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:15:37,848 INFO L158 Benchmark]: Toolchain (without parser) took 10849.04ms. Allocated memory was 140.5MB in the beginning and 1.1GB in the end (delta: 958.4MB). Free memory was 110.1MB in the beginning and 757.9MB in the end (delta: -647.8MB). Peak memory consumption was 716.3MB. Max. memory is 16.1GB. [2024-06-14 14:15:37,848 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory was 103.8MB in the beginning and 103.8MB in the end (delta: 74.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:15:37,849 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 140.5MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:15:37,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.64ms. Allocated memory is still 140.5MB. Free memory was 110.1MB in the beginning and 81.9MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-14 14:15:37,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.23ms. Allocated memory is still 140.5MB. Free memory was 81.9MB in the beginning and 72.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-06-14 14:15:37,849 INFO L158 Benchmark]: Boogie Preprocessor took 193.80ms. Allocated memory is still 140.5MB. Free memory was 72.0MB in the beginning and 61.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-06-14 14:15:37,850 INFO L158 Benchmark]: RCFGBuilder took 2589.53ms. Allocated memory was 140.5MB in the beginning and 239.1MB in the end (delta: 98.6MB). Free memory was 61.0MB in the beginning and 106.5MB in the end (delta: -45.5MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. [2024-06-14 14:15:37,850 INFO L158 Benchmark]: TraceAbstraction took 7496.61ms. Allocated memory was 239.1MB in the beginning and 1.1GB in the end (delta: 859.8MB). Free memory was 105.5MB in the beginning and 757.9MB in the end (delta: -652.5MB). Peak memory consumption was 614.8MB. Max. memory is 16.1GB. [2024-06-14 14:15:37,852 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory was 103.8MB in the beginning and 103.8MB in the end (delta: 74.7kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 140.5MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.64ms. Allocated memory is still 140.5MB. Free memory was 110.1MB in the beginning and 81.9MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.23ms. Allocated memory is still 140.5MB. Free memory was 81.9MB in the beginning and 72.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 193.80ms. Allocated memory is still 140.5MB. Free memory was 72.0MB in the beginning and 61.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2589.53ms. Allocated memory was 140.5MB in the beginning and 239.1MB in the end (delta: 98.6MB). Free memory was 61.0MB in the beginning and 106.5MB in the end (delta: -45.5MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7496.61ms. Allocated memory was 239.1MB in the beginning and 1.1GB in the end (delta: 859.8MB). Free memory was 105.5MB in the beginning and 757.9MB in the end (delta: -652.5MB). Peak memory consumption was 614.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 230]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 231]: 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 5 procedures, 121 locations, 4 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: 7.2s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 862 IncrementalHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 3 mSDtfsCounter, 862 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred in iteration=4, InterpolantAutomatonStates: 20, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 172 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 696 SizeOfPredicates, 1 NumberOfNonLiveVariables, 658 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 132/138 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-14 14:15:37,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE