./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 76401ed0 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/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-76401ed-m [2024-06-20 18:10:52,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:10:52,511 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:10:52,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:10:52,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:10:52,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:10:52,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:10:52,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:10:52,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:10:52,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:10:52,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:10:52,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:10:52,547 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:10:52,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:10:52,548 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:10:52,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:10:52,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:10:52,548 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:10:52,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:10:52,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:10:52,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:10:52,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:10:52,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:10:52,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:10:52,550 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:10:52,550 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:10:52,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:10:52,551 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:10:52,551 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:10:52,551 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:10:52,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:10:52,552 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:10:52,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:10:52,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:10:52,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:10:52,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:10:52,553 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:10:52,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:10:52,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:10:52,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:10:52,554 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:10:52,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:10:52,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:10:52,555 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:10:52,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:10:52,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:10:52,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:10:52,813 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:10:52,813 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:10:52,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2024-06-20 18:10:53,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:10:54,005 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:10:54,009 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2024-06-20 18:10:54,022 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac550576c/ed90da88b15f4b95a3deaf3f93013761/FLAG966b42d3f [2024-06-20 18:10:54,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac550576c/ed90da88b15f4b95a3deaf3f93013761 [2024-06-20 18:10:54,040 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:10:54,041 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:10:54,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/chl-poker-hand-symm.wvr.yml/witness.yml [2024-06-20 18:10:54,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:10:54,138 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:10:54,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:10:54,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:10:54,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:10:54,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:10:54" (1/2) ... [2024-06-20 18:10:54,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a426bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:10:54, skipping insertion in model container [2024-06-20 18:10:54,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:10:54" (1/2) ... [2024-06-20 18:10:54,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22ec1873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:10:54, skipping insertion in model container [2024-06-20 18:10:54,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:10:54" (2/2) ... [2024-06-20 18:10:54,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a426bc1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54, skipping insertion in model container [2024-06-20 18:10:54,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:10:54" (2/2) ... [2024-06-20 18:10:54,149 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:10:54,174 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:10:54,175 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) [2024-06-20 18:10:54,176 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) [2024-06-20 18:10:54,176 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:10:54,176 INFO L106 edCorrectnessWitness]: ghost_update [L229-L229] multithreaded = 1; [2024-06-20 18:10:54,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:10:54,420 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:10:54,426 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 18:10:54,609 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:10:54,629 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:10:54,630 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54 WrapperNode [2024-06-20 18:10:54,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:10:54,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:10:54,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:10:54,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:10:54,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,743 INFO L138 Inliner]: procedures = 24, calls = 298, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 1566 [2024-06-20 18:10:54,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:10:54,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:10:54,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:10:54,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:10:54,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,764 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,800 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]. [2024-06-20 18:10:54,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:10:54,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:10:54,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:10:54,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:10:54,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (1/1) ... [2024-06-20 18:10:54,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:10:54,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:10:54,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-20 18:10:54,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-20 18:10:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:10:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-20 18:10:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-20 18:10:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-20 18:10:54,972 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-20 18:10:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:10:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 18:10:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-20 18:10:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-20 18:10:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-20 18:10:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-20 18:10:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-20 18:10:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:10:54,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:10:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-20 18:10:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-20 18:10:54,976 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 18:10:55,151 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:10:55,153 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:10:56,290 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:10:56,291 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:10:57,438 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:10:57,438 INFO L320 CfgBuilder]: Removed 12 assume(true) statements. [2024-06-20 18:10:57,438 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:10:57 BoogieIcfgContainer [2024-06-20 18:10:57,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:10:57,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:10:57,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:10:57,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:10:57,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:10:54" (1/4) ... [2024-06-20 18:10:57,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8f84bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:10:57, skipping insertion in model container [2024-06-20 18:10:57,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:10:54" (2/4) ... [2024-06-20 18:10:57,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8f84bb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:10:57, skipping insertion in model container [2024-06-20 18:10:57,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:54" (3/4) ... [2024-06-20 18:10:57,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8f84bb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:10:57, skipping insertion in model container [2024-06-20 18:10:57,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:10:57" (4/4) ... [2024-06-20 18:10:57,445 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2024-06-20 18:10:57,462 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:10:57,462 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-20 18:10:57,462 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:10:57,728 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-20 18:10:57,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 97 transitions, 208 flow [2024-06-20 18:10:57,820 INFO L124 PetriNetUnfolderBase]: 28/95 cut-off events. [2024-06-20 18:10:57,820 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-20 18:10:57,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 95 events. 28/95 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. 0/65 useless extension candidates. Maximal degree in co-relation 75. Up to 7 conditions per place. [2024-06-20 18:10:57,824 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 97 transitions, 208 flow [2024-06-20 18:10:57,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 93 transitions, 195 flow [2024-06-20 18:10:57,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:10:57,930 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;@26971034, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:10:57,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-20 18:10:57,952 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:10:57,952 INFO L124 PetriNetUnfolderBase]: 8/23 cut-off events. [2024-06-20 18:10:57,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:10:57,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:10:57,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:10:57,953 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)] === [2024-06-20 18:10:57,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:10:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1776879632, now seen corresponding path program 1 times [2024-06-20 18:10:57,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:10:57,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310409843] [2024-06-20 18:10:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:10:57,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:10:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:10:58,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:10:58,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:10:58,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310409843] [2024-06-20 18:10:58,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310409843] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:10:58,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:10:58,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-20 18:10:58,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745817655] [2024-06-20 18:10:58,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:10:58,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:10:58,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:10:58,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:10:58,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:10:58,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 97 [2024-06-20 18:10:58,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 93 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:10:58,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:10:58,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 97 [2024-06-20 18:10:58,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:10:59,640 INFO L124 PetriNetUnfolderBase]: 2533/3824 cut-off events. [2024-06-20 18:10:59,640 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-06-20 18:10:59,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7696 conditions, 3824 events. 2533/3824 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 18385 event pairs, 1725 based on Foata normal form. 0/3002 useless extension candidates. Maximal degree in co-relation 7511. Up to 3791 conditions per place. [2024-06-20 18:10:59,662 INFO L140 encePairwiseOnDemand]: 84/97 looper letters, 80 selfloop transitions, 8 changer transitions 1/93 dead transitions. [2024-06-20 18:10:59,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 93 transitions, 373 flow [2024-06-20 18:10:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:10:59,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:10:59,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-06-20 18:10:59,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3951890034364261 [2024-06-20 18:10:59,675 INFO L175 Difference]: Start difference. First operand has 72 places, 93 transitions, 195 flow. Second operand 3 states and 115 transitions. [2024-06-20 18:10:59,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 93 transitions, 373 flow [2024-06-20 18:10:59,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 93 transitions, 368 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-20 18:10:59,683 INFO L231 Difference]: Finished difference. Result has 72 places, 92 transitions, 221 flow [2024-06-20 18:10:59,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=72, PETRI_TRANSITIONS=92} [2024-06-20 18:10:59,688 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 0 predicate places. [2024-06-20 18:10:59,689 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 92 transitions, 221 flow [2024-06-20 18:10:59,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:10:59,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:10:59,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:10:59,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:10:59,690 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)] === [2024-06-20 18:10:59,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:10:59,692 INFO L85 PathProgramCache]: Analyzing trace with hash -768269484, now seen corresponding path program 1 times [2024-06-20 18:10:59,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:10:59,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485460084] [2024-06-20 18:10:59,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:10:59,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:10:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:10:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-20 18:10:59,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:10:59,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485460084] [2024-06-20 18:10:59,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485460084] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-20 18:10:59,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848750237] [2024-06-20 18:10:59,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:10:59,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-20 18:10:59,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:10:59,911 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) [2024-06-20 18:10:59,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-20 18:11:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:11:00,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2024-06-20 18:11:00,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-20 18:11:00,353 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-06-20 18:11:00,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-20 18:11:00,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848750237] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:11:00,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-20 18:11:00,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-06-20 18:11:00,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854169426] [2024-06-20 18:11:00,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:11:00,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:11:00,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:11:00,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:11:00,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-20 18:11:00,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 97 [2024-06-20 18:11:00,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 92 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:11:00,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:11:00,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 97 [2024-06-20 18:11:00,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:11:01,144 INFO L124 PetriNetUnfolderBase]: 2502/3773 cut-off events. [2024-06-20 18:11:01,145 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-20 18:11:01,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7586 conditions, 3773 events. 2502/3773 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 17988 event pairs, 1702 based on Foata normal form. 1/2964 useless extension candidates. Maximal degree in co-relation 7533. Up to 3740 conditions per place. [2024-06-20 18:11:01,160 INFO L140 encePairwiseOnDemand]: 87/97 looper letters, 84 selfloop transitions, 8 changer transitions 0/96 dead transitions. [2024-06-20 18:11:01,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 96 transitions, 413 flow [2024-06-20 18:11:01,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:11:01,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:11:01,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-06-20 18:11:01,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37800687285223367 [2024-06-20 18:11:01,162 INFO L175 Difference]: Start difference. First operand has 72 places, 92 transitions, 221 flow. Second operand 3 states and 110 transitions. [2024-06-20 18:11:01,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 96 transitions, 413 flow [2024-06-20 18:11:01,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 96 transitions, 405 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 18:11:01,164 INFO L231 Difference]: Finished difference. Result has 73 places, 96 transitions, 257 flow [2024-06-20 18:11:01,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=73, PETRI_TRANSITIONS=96} [2024-06-20 18:11:01,165 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2024-06-20 18:11:01,165 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 96 transitions, 257 flow [2024-06-20 18:11:01,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:11:01,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:11:01,166 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] [2024-06-20 18:11:01,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-20 18:11:01,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-20 18:11:01,383 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)] === [2024-06-20 18:11:01,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:11:01,384 INFO L85 PathProgramCache]: Analyzing trace with hash -36823286, now seen corresponding path program 1 times [2024-06-20 18:11:01,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:11:01,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115090002] [2024-06-20 18:11:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:11:01,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:11:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:11:01,485 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-06-20 18:11:01,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:11:01,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115090002] [2024-06-20 18:11:01,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115090002] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-20 18:11:01,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510171478] [2024-06-20 18:11:01,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:11:01,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-20 18:11:01,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:11:01,488 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) [2024-06-20 18:11:01,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-20 18:11:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:11:01,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 5 conjunts are in the unsatisfiable core [2024-06-20 18:11:01,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-20 18:11:01,847 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-06-20 18:11:01,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-20 18:11:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-06-20 18:11:01,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510171478] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-20 18:11:01,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-20 18:11:01,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2024-06-20 18:11:01,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47634194] [2024-06-20 18:11:01,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-20 18:11:01,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:11:01,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:11:01,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:11:01,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:11:01,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 97 [2024-06-20 18:11:01,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 96 transitions, 257 flow. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:11:01,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:11:01,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 97 [2024-06-20 18:11:01,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:11:02,862 INFO L124 PetriNetUnfolderBase]: 2502/3797 cut-off events. [2024-06-20 18:11:02,862 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-20 18:11:02,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7673 conditions, 3797 events. 2502/3797 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 18074 event pairs, 1702 based on Foata normal form. 12/2999 useless extension candidates. Maximal degree in co-relation 7553. Up to 3736 conditions per place. [2024-06-20 18:11:02,884 INFO L140 encePairwiseOnDemand]: 80/97 looper letters, 76 selfloop transitions, 40 changer transitions 0/120 dead transitions. [2024-06-20 18:11:02,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 120 transitions, 585 flow [2024-06-20 18:11:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-20 18:11:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-20 18:11:02,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 188 transitions. [2024-06-20 18:11:02,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2422680412371134 [2024-06-20 18:11:02,887 INFO L175 Difference]: Start difference. First operand has 73 places, 96 transitions, 257 flow. Second operand 8 states and 188 transitions. [2024-06-20 18:11:02,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 120 transitions, 585 flow [2024-06-20 18:11:02,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 120 transitions, 577 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 18:11:02,891 INFO L231 Difference]: Finished difference. Result has 82 places, 120 transitions, 487 flow [2024-06-20 18:11:02,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=487, PETRI_PLACES=82, PETRI_TRANSITIONS=120} [2024-06-20 18:11:02,892 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 10 predicate places. [2024-06-20 18:11:02,892 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 120 transitions, 487 flow [2024-06-20 18:11:02,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:11:02,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:11:02,893 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:11:02,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-06-20 18:11:03,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-06-20 18:11:03,108 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)] === [2024-06-20 18:11:03,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:11:03,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2021715184, now seen corresponding path program 2 times [2024-06-20 18:11:03,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:11:03,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433511364] [2024-06-20 18:11:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:11:03,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:11:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:11:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-06-20 18:11:03,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:11:03,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433511364] [2024-06-20 18:11:03,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433511364] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-20 18:11:03,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094187415] [2024-06-20 18:11:03,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-20 18:11:03,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-20 18:11:03,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:11:03,366 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-20 18:11:03,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-06-20 18:11:03,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-06-20 18:11:03,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-20 18:11:03,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 7 conjunts are in the unsatisfiable core [2024-06-20 18:11:03,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-20 18:11:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-06-20 18:11:03,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-20 18:11:03,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094187415] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:11:03,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-20 18:11:03,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [6] total 7 [2024-06-20 18:11:03,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408208533] [2024-06-20 18:11:03,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:11:03,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:11:03,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:11:04,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:11:04,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:11:04,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 97 [2024-06-20 18:11:04,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 120 transitions, 487 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) [2024-06-20 18:11:04,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:11:04,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 97 [2024-06-20 18:11:04,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:11:04,736 INFO L124 PetriNetUnfolderBase]: 2502/3782 cut-off events. [2024-06-20 18:11:04,736 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 18:11:04,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7728 conditions, 3782 events. 2502/3782 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17896 event pairs, 1702 based on Foata normal form. 576/3561 useless extension candidates. Maximal degree in co-relation 7556. Up to 3767 conditions per place. [2024-06-20 18:11:04,744 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 0 selfloop transitions, 0 changer transitions 118/118 dead transitions. [2024-06-20 18:11:04,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 118 transitions, 715 flow [2024-06-20 18:11:04,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:11:04,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:11:04,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-06-20 18:11:04,745 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33676975945017185 [2024-06-20 18:11:04,745 INFO L175 Difference]: Start difference. First operand has 82 places, 120 transitions, 487 flow. Second operand 3 states and 98 transitions. [2024-06-20 18:11:04,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 118 transitions, 715 flow [2024-06-20 18:11:04,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 118 transitions, 633 flow, removed 29 selfloop flow, removed 3 redundant places. [2024-06-20 18:11:04,748 INFO L231 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2024-06-20 18:11:04,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2024-06-20 18:11:04,749 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 7 predicate places. [2024-06-20 18:11:04,749 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2024-06-20 18:11:04,749 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) [2024-06-20 18:11:04,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-20 18:11:04,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-20 18:11:04,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-20 18:11:04,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-20 18:11:04,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-06-20 18:11:04,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-20 18:11:04,966 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-06-20 18:11:04,968 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 18:11:04,968 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 18:11:04,971 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-20 18:11:04,972 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-20 18:11:04,972 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 06:11:04 BasicIcfg [2024-06-20 18:11:04,972 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 18:11:04,973 INFO L158 Benchmark]: Toolchain (without parser) took 10834.74ms. Allocated memory was 167.8MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 95.0MB in the beginning and 540.5MB in the end (delta: -445.6MB). Peak memory consumption was 704.1MB. Max. memory is 16.1GB. [2024-06-20 18:11:04,973 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory was 129.1MB in the beginning and 129.0MB in the end (delta: 72.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:11:04,974 INFO L158 Benchmark]: Witness Parser took 0.41ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 98.9MB in the end (delta: 131.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:11:04,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.43ms. Allocated memory is still 167.8MB. Free memory was 94.8MB in the beginning and 130.6MB in the end (delta: -35.8MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-06-20 18:11:04,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.75ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 121.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-06-20 18:11:04,974 INFO L158 Benchmark]: Boogie Preprocessor took 144.59ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 109.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-06-20 18:11:04,975 INFO L158 Benchmark]: RCFGBuilder took 2537.54ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 109.8MB in the beginning and 79.1MB in the end (delta: 30.7MB). Peak memory consumption was 120.6MB. Max. memory is 16.1GB. [2024-06-20 18:11:04,975 INFO L158 Benchmark]: TraceAbstraction took 7532.32ms. Allocated memory was 243.3MB in the beginning and 1.2GB in the end (delta: 931.1MB). Free memory was 78.1MB in the beginning and 540.5MB in the end (delta: -462.5MB). Peak memory consumption was 611.0MB. Max. memory is 16.1GB. [2024-06-20 18:11:04,977 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 167.8MB. Free memory was 129.1MB in the beginning and 129.0MB in the end (delta: 72.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.41ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 98.9MB in the end (delta: 131.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.43ms. Allocated memory is still 167.8MB. Free memory was 94.8MB in the beginning and 130.6MB in the end (delta: -35.8MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.75ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 121.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 144.59ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 109.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2537.54ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 109.8MB in the beginning and 79.1MB in the end (delta: 30.7MB). Peak memory consumption was 120.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7532.32ms. Allocated memory was 243.3MB in the beginning and 1.2GB in the end (delta: 931.1MB). Free memory was 78.1MB in the beginning and 540.5MB in the end (delta: -462.5MB). Peak memory consumption was 611.0MB. 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, 120 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: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 624 IncrementalHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 0 mSDtfsCounter, 624 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=487occurred in iteration=3, InterpolantAutomatonStates: 17, 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, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 179 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 796 SizeOfPredicates, 2 NumberOfNonLiveVariables, 987 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 178/192 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! [2024-06-20 18:11:05,026 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