./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix018.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/mix018.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec 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/pthread-wmm/mix018.opt.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/mix018.opt.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 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:25:26,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:25:26,363 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:25:26,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:25:26,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:25:26,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:25:26,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:25:26,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:25:26,396 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:25:26,399 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:25:26,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:25:26,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:25:26,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:25:26,402 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:25:26,402 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:25:26,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:25:26,403 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:25:26,403 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:25:26,403 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:25:26,403 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:25:26,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:25:26,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:25:26,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:25:26,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:25:26,404 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:25:26,405 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:25:26,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:25:26,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:25:26,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:25:26,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:25:26,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:25:26,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:25:26,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:25:26,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:25:26,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:25:26,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:25:26,408 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:25:26,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:25:26,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:25:26,408 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:25:26,408 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:25:26,409 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:25:26,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:25:26,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:25:26,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:25:26,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:25:26,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:25:26,685 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:25:26,686 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:25:26,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/mix018.opt.yml/witness.yml [2024-02-07 19:25:26,809 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:25:26,809 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:25:26,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix018.opt.i [2024-02-07 19:25:27,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:25:28,198 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:25:28,199 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix018.opt.i [2024-02-07 19:25:28,214 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23b829995/e279bea933744cf79f4aa593ec810ceb/FLAG284d04345 [2024-02-07 19:25:28,229 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23b829995/e279bea933744cf79f4aa593ec810ceb [2024-02-07 19:25:28,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:25:28,231 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:25:28,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:25:28,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:25:28,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:25:28,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:25:26" (1/2) ... [2024-02-07 19:25:28,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12434247 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:25:28, skipping insertion in model container [2024-02-07 19:25:28,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:25:26" (1/2) ... [2024-02-07 19:25:28,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@a76e686 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:25:28, skipping insertion in model container [2024-02-07 19:25:28,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:25:28" (2/2) ... [2024-02-07 19:25:28,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12434247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28, skipping insertion in model container [2024-02-07 19:25:28,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:25:28" (2/2) ... [2024-02-07 19:25:28,242 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:25:28,412 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:25:28,413 INFO L76 edCorrectnessWitness]: Location invariant before [L816-L816] (z$r_buff0_thd1 == (_Bool)0) && (z$r_buff1_thd0 == (_Bool)0) [2024-02-07 19:25:28,413 INFO L76 edCorrectnessWitness]: Location invariant before [L827-L827] (((z$w_buff0_used == (_Bool)1 && ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) || ((z$r_buff0_thd4 == (_Bool)0 && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1))) || (((z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,413 INFO L76 edCorrectnessWitness]: Location invariant before [L881-L881] (z$r_buff1_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)1 || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 19:25:28,413 INFO L76 edCorrectnessWitness]: Location invariant before [L821-L821] z$r_buff0_thd4 == (_Bool)1 [2024-02-07 19:25:28,414 INFO L76 edCorrectnessWitness]: Location invariant before [L828-L828] (((z$w_buff0_used == (_Bool)1 && ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) || ((z$r_buff0_thd4 == (_Bool)0 && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1))) || (((z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,414 INFO L76 edCorrectnessWitness]: Location invariant before [L770-L770] ((0 <= y) && (y <= 1)) && (y == 0 || y == 1) [2024-02-07 19:25:28,414 INFO L76 edCorrectnessWitness]: Location invariant before [L836-L836] ((0 <= z) && (z <= 1)) && (z == 0 || z == 1) [2024-02-07 19:25:28,414 INFO L76 edCorrectnessWitness]: Location invariant before [L811-L811] ((0 <= z$w_buff1) && (z$w_buff1 <= 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1) [2024-02-07 19:25:28,414 INFO L76 edCorrectnessWitness]: Location invariant before [L884-L884] ((((0 <= __unbuffered_p3_EBX) && (__unbuffered_p3_EBX <= 1)) && (x == 2)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && ((__unbuffered_p1_EAX == 0 && ((__unbuffered_p2_EAX == 0 && (__unbuffered_p3_EAX == 1 || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) || (((((0 <= __unbuffered_p2_EAX && 0 <= __unbuffered_p3_EAX) && __unbuffered_p2_EAX <= 1) && __unbuffered_p3_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) || ((((((((0 <= __unbuffered_p1_EAX && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p3_EAX) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p3_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) [2024-02-07 19:25:28,414 INFO L76 edCorrectnessWitness]: Location invariant before [L788-L788] (((0 <= z) && (z <= 1)) && (z == 0 || z == 1)) && (z$flush_delayed == (_Bool)0 || z$flush_delayed == (_Bool)1) [2024-02-07 19:25:28,414 INFO L76 edCorrectnessWitness]: Location invariant before [L873-L873] 0 <= __unbuffered_cnt [2024-02-07 19:25:28,414 INFO L76 edCorrectnessWitness]: Location invariant before [L787-L787] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 19:25:28,415 INFO L76 edCorrectnessWitness]: Location invariant before [L791-L791] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,415 INFO L76 edCorrectnessWitness]: Location invariant before [L829-L829] (((z$w_buff0_used == (_Bool)1 && ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) || ((z$r_buff0_thd4 == (_Bool)0 && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1))) || (((z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,415 INFO L76 edCorrectnessWitness]: Location invariant before [L792-L792] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,415 INFO L76 edCorrectnessWitness]: Location invariant before [L776-L776] 1 <= __unbuffered_cnt [2024-02-07 19:25:28,415 INFO L76 edCorrectnessWitness]: Location invariant before [L882-L882] z$r_buff1_thd0 == (_Bool)0 [2024-02-07 19:25:28,415 INFO L76 edCorrectnessWitness]: Location invariant before [L837-L837] z$flush_delayed == (_Bool)0 [2024-02-07 19:25:28,415 INFO L76 edCorrectnessWitness]: Location invariant before [L771-L771] ((0 <= __unbuffered_p1_EAX) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) [2024-02-07 19:25:28,416 INFO L76 edCorrectnessWitness]: Location invariant before [L844-L844] (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1) && (((z$w_buff1_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1)) || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1))) [2024-02-07 19:25:28,416 INFO L76 edCorrectnessWitness]: Location invariant before [L845-L845] (z$w_buff0_used == (_Bool)1) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 19:25:28,416 INFO L76 edCorrectnessWitness]: Location invariant before [L804-L804] 1 <= __unbuffered_cnt [2024-02-07 19:25:28,416 INFO L76 edCorrectnessWitness]: Location invariant before [L761-L761] 1 <= __unbuffered_cnt [2024-02-07 19:25:28,417 INFO L76 edCorrectnessWitness]: Location invariant before [L886-L886] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 19:25:28,417 INFO L76 edCorrectnessWitness]: Location invariant before [L814-L814] (z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)1) [2024-02-07 19:25:28,417 INFO L76 edCorrectnessWitness]: Location invariant before [L753-L753] a == 1 [2024-02-07 19:25:28,417 INFO L76 edCorrectnessWitness]: Location invariant before [L817-L817] (z$r_buff0_thd2 == (_Bool)0) && (z$r_buff1_thd1 == (_Bool)0) [2024-02-07 19:25:28,417 INFO L76 edCorrectnessWitness]: Location invariant before [L832-L832] (((z$w_buff0_used == (_Bool)1 && ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) || ((z$r_buff0_thd4 == (_Bool)0 && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1))) || (((z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,417 INFO L76 edCorrectnessWitness]: Location invariant before [L798-L798] ((0 <= z) && (z <= 1)) && (z == 0 || z == 1) [2024-02-07 19:25:28,417 INFO L76 edCorrectnessWitness]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 19:25:28,418 INFO L76 edCorrectnessWitness]: Location invariant before [L794-L794] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,418 INFO L76 edCorrectnessWitness]: Location invariant before [L812-L812] (z$w_buff0 == 1) && (z$w_buff0_used == (_Bool)0 || z$w_buff0_used == (_Bool)1) [2024-02-07 19:25:28,418 INFO L76 edCorrectnessWitness]: Location invariant before [L885-L885] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 19:25:28,418 INFO L76 edCorrectnessWitness]: Location invariant before [L880-L880] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 19:25:28,418 INFO L76 edCorrectnessWitness]: Location invariant before [L810-L810] ((0 <= z$w_buff0) && (z$w_buff0 <= 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1) [2024-02-07 19:25:28,418 INFO L76 edCorrectnessWitness]: Location invariant before [L834-L834] (((0 <= z) && (z <= 1)) && (z == 0 || z == 1)) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1) [2024-02-07 19:25:28,418 INFO L76 edCorrectnessWitness]: Location invariant before [L824-L824] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 19:25:28,419 INFO L76 edCorrectnessWitness]: Location invariant before [L850-L850] 1 <= __unbuffered_cnt [2024-02-07 19:25:28,420 INFO L76 edCorrectnessWitness]: Location invariant before [L840-L840] ((0 <= __unbuffered_p3_EBX) && (__unbuffered_p3_EBX <= 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1) [2024-02-07 19:25:28,420 INFO L76 edCorrectnessWitness]: Location invariant before [L796-L796] (((0 <= z) && (z <= 1)) && (z$r_buff1_thd3 == (_Bool)0)) && (z == 0 || z == 1) [2024-02-07 19:25:28,420 INFO L76 edCorrectnessWitness]: Location invariant before [L793-L793] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,420 INFO L76 edCorrectnessWitness]: Location invariant before [L842-L842] (z$w_buff1_used == (_Bool)1 && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1)) [2024-02-07 19:25:28,420 INFO L76 edCorrectnessWitness]: Location invariant before [L756-L756] x == 1 [2024-02-07 19:25:28,421 INFO L76 edCorrectnessWitness]: Location invariant before [L833-L833] (((z$w_buff0_used == (_Bool)1 && ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) || ((z$r_buff0_thd4 == (_Bool)0 && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1))) || (((z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,421 INFO L76 edCorrectnessWitness]: Location invariant before [L783-L783] y == 1 [2024-02-07 19:25:28,421 INFO L76 edCorrectnessWitness]: Location invariant before [L879-L879] (z$r_buff1_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)1 || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 19:25:28,421 INFO L76 edCorrectnessWitness]: Location invariant before [L875-L875] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:25:28,422 INFO L76 edCorrectnessWitness]: Location invariant before [L815-L815] z$r_buff0_thd0 == (_Bool)0 [2024-02-07 19:25:28,422 INFO L76 edCorrectnessWitness]: Location invariant before [L795-L795] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,422 INFO L76 edCorrectnessWitness]: Location invariant before [L790-L790] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,422 INFO L76 edCorrectnessWitness]: Location invariant before [L877-L877] (z$r_buff1_thd0 == (_Bool)0 && z$w_buff1_used == (_Bool)1) || (z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 19:25:28,422 INFO L76 edCorrectnessWitness]: Location invariant before [L839-L839] ((0 <= a) && (a <= 1)) && (a == 0 || a == 1) [2024-02-07 19:25:28,422 INFO L76 edCorrectnessWitness]: Location invariant before [L878-L878] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 19:25:28,423 INFO L76 edCorrectnessWitness]: Location invariant before [L799-L799] z$flush_delayed == (_Bool)0 [2024-02-07 19:25:28,423 INFO L76 edCorrectnessWitness]: Location invariant before [L818-L818] (z$r_buff0_thd3 == (_Bool)0) && (z$r_buff1_thd2 == (_Bool)0) [2024-02-07 19:25:28,423 INFO L76 edCorrectnessWitness]: Location invariant before [L825-L825] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 19:25:28,423 INFO L76 edCorrectnessWitness]: Location invariant before [L760-L760] 0 <= __unbuffered_cnt [2024-02-07 19:25:28,424 INFO L76 edCorrectnessWitness]: Location invariant before [L768-L768] x == 2 [2024-02-07 19:25:28,424 INFO L76 edCorrectnessWitness]: Location invariant before [L803-L803] 0 <= __unbuffered_cnt [2024-02-07 19:25:28,424 INFO L76 edCorrectnessWitness]: Location invariant before [L775-L775] 0 <= __unbuffered_cnt [2024-02-07 19:25:28,424 INFO L76 edCorrectnessWitness]: Location invariant before [L789-L789] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,425 INFO L76 edCorrectnessWitness]: Location invariant before [L786-L786] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 19:25:28,425 INFO L76 edCorrectnessWitness]: Location invariant before [L849-L849] 0 <= __unbuffered_cnt [2024-02-07 19:25:28,425 INFO L76 edCorrectnessWitness]: Location invariant before [L820-L820] z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1 [2024-02-07 19:25:28,425 INFO L76 edCorrectnessWitness]: Location invariant before [L847-L847] z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1 [2024-02-07 19:25:28,425 INFO L76 edCorrectnessWitness]: Location invariant before [L826-L826] (((0 <= z) && (z <= 1)) && (z == 0 || z == 1)) && (z$flush_delayed == (_Bool)0 || z$flush_delayed == (_Bool)1) [2024-02-07 19:25:28,425 INFO L76 edCorrectnessWitness]: Location invariant before [L843-L843] (z$w_buff0_used == (_Bool)1) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 19:25:28,425 INFO L76 edCorrectnessWitness]: Location invariant before [L830-L830] (((z$w_buff0_used == (_Bool)1 && ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) || ((z$r_buff0_thd4 == (_Bool)0 && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1))) || (((z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,426 INFO L76 edCorrectnessWitness]: Location invariant before [L819-L819] (z$r_buff1_thd3 == (_Bool)0) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 19:25:28,426 INFO L76 edCorrectnessWitness]: Location invariant before [L874-L874] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:25:28,426 INFO L76 edCorrectnessWitness]: Location invariant before [L846-L846] (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1) && (((z$w_buff1_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1)) || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1))) [2024-02-07 19:25:28,426 INFO L76 edCorrectnessWitness]: Location invariant before [L831-L831] (((z$w_buff0_used == (_Bool)1 && ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) || ((z$r_buff0_thd4 == (_Bool)0 && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1))) || (((z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || ((z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:25:28,426 INFO L76 edCorrectnessWitness]: Location invariant before [L813-L813] z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1 [2024-02-07 19:25:28,469 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:25:28,627 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix018.opt.i[944,957] [2024-02-07 19:25:28,791 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:25:28,798 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 19:25:28,825 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix018.opt.i[944,957] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:25:28,947 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:25:28,978 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:25:28,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28 WrapperNode [2024-02-07 19:25:28,981 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:25:28,982 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:25:28,982 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:25:28,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:25:28,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,082 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,124 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 213 [2024-02-07 19:25:29,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:25:29,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:25:29,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:25:29,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:25:29,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,160 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,192 INFO L175 MemorySlicer]: Split 6 memory accesses to 5 slices as follows [2, 1, 1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-02-07 19:25:29,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:25:29,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:25:29,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:25:29,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:25:29,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (1/1) ... [2024-02-07 19:25:29,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:25:29,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:25:29,272 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) [2024-02-07 19:25:29,284 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 [2024-02-07 19:25:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:25:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:25:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:25:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:25:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 19:25:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:25:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:25:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:25:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:25:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 19:25:29,310 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 19:25:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 19:25:29,310 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 19:25:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 19:25:29,311 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 19:25:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-02-07 19:25:29,311 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-02-07 19:25:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:25:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:25:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:25:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:25:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 19:25:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:25:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:25:29,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:25:29,313 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:25:29,475 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:25:29,478 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:25:29,964 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:25:29,964 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:25:30,417 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:25:30,418 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:25:30,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:25:30 BoogieIcfgContainer [2024-02-07 19:25:30,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:25:30,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:25:30,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:25:30,424 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:25:30,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:25:26" (1/4) ... [2024-02-07 19:25:30,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640a697e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:25:30, skipping insertion in model container [2024-02-07 19:25:30,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:25:28" (2/4) ... [2024-02-07 19:25:30,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640a697e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:25:30, skipping insertion in model container [2024-02-07 19:25:30,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:25:28" (3/4) ... [2024-02-07 19:25:30,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640a697e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:25:30, skipping insertion in model container [2024-02-07 19:25:30,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:25:30" (4/4) ... [2024-02-07 19:25:30,428 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018.opt.i [2024-02-07 19:25:30,442 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:25:30,442 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2024-02-07 19:25:30,443 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:25:30,543 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 19:25:30,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 124 transitions, 264 flow [2024-02-07 19:25:30,651 INFO L124 PetriNetUnfolderBase]: 1/120 cut-off events. [2024-02-07 19:25:30,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:25:30,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 120 events. 1/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 641 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 124. Up to 2 conditions per place. [2024-02-07 19:25:30,657 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 124 transitions, 264 flow [2024-02-07 19:25:30,661 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 120 transitions, 252 flow [2024-02-07 19:25:30,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:25:30,672 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;@57e4615a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:25:30,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 142 error locations. [2024-02-07 19:25:30,674 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:25:30,674 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-07 19:25:30,674 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:25:30,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:25:30,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 19:25:30,675 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 139 more)] === [2024-02-07 19:25:30,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:25:30,679 INFO L85 PathProgramCache]: Analyzing trace with hash 25436552, now seen corresponding path program 1 times [2024-02-07 19:25:30,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:25:30,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909803425] [2024-02-07 19:25:30,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:25:30,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:25:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:25:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:25:30,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:25:30,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909803425] [2024-02-07 19:25:30,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909803425] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:25:30,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:25:30,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:25:30,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787139219] [2024-02-07 19:25:30,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:25:30,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-02-07 19:25:30,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:25:30,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-02-07 19:25:30,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-02-07 19:25:30,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 124 [2024-02-07 19:25:30,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 120 transitions, 252 flow. Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2024-02-07 19:25:30,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:25:30,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 124 [2024-02-07 19:25:30,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:25:42,974 INFO L124 PetriNetUnfolderBase]: 111879/163395 cut-off events. [2024-02-07 19:25:42,975 INFO L125 PetriNetUnfolderBase]: For 520/520 co-relation queries the response was YES. [2024-02-07 19:25:43,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310251 conditions, 163395 events. 111879/163395 cut-off events. For 520/520 co-relation queries the response was YES. Maximal size of possible extension queue 8187. Compared 1400584 event pairs, 111879 based on Foata normal form. 2520/93142 useless extension candidates. Maximal degree in co-relation 310239. Up to 145745 conditions per place. [2024-02-07 19:25:44,285 INFO L140 encePairwiseOnDemand]: 92/124 looper letters, 46 selfloop transitions, 0 changer transitions 0/60 dead transitions. [2024-02-07 19:25:44,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 60 transitions, 224 flow [2024-02-07 19:25:44,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-02-07 19:25:44,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-02-07 19:25:44,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2024-02-07 19:25:44,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4596774193548387 [2024-02-07 19:25:44,311 INFO L175 Difference]: Start difference. First operand has 132 places, 120 transitions, 252 flow. Second operand 2 states and 114 transitions. [2024-02-07 19:25:44,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 60 transitions, 224 flow [2024-02-07 19:25:44,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 60 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-07 19:25:44,319 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 128 flow [2024-02-07 19:25:44,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=128, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-02-07 19:25:44,322 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, -62 predicate places. [2024-02-07 19:25:44,323 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 128 flow [2024-02-07 19:25:44,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2024-02-07 19:25:44,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:25:44,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:25:44,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:25:44,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 139 more)] === [2024-02-07 19:25:44,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:25:44,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1867000060, now seen corresponding path program 1 times [2024-02-07 19:25:44,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:25:44,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787127120] [2024-02-07 19:25:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:25:44,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:25:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:25:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:25:44,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:25:44,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787127120] [2024-02-07 19:25:44,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787127120] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:25:44,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:25:44,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:25:44,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876380756] [2024-02-07 19:25:44,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:25:44,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:25:44,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:25:44,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:25:44,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:25:44,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 124 [2024-02-07 19:25:44,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-02-07 19:25:44,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:25:44,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 124 [2024-02-07 19:25:44,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:25:52,272 INFO L124 PetriNetUnfolderBase]: 86977/118099 cut-off events. [2024-02-07 19:25:52,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:25:52,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233126 conditions, 118099 events. 86977/118099 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5872. Compared 854889 event pairs, 28175 based on Foata normal form. 0/68299 useless extension candidates. Maximal degree in co-relation 233123. Up to 87273 conditions per place. [2024-02-07 19:25:53,122 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 79 selfloop transitions, 4 changer transitions 0/97 dead transitions. [2024-02-07 19:25:53,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 97 transitions, 374 flow [2024-02-07 19:25:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:25:53,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:25:53,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-02-07 19:25:53,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3790322580645161 [2024-02-07 19:25:53,129 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 128 flow. Second operand 3 states and 141 transitions. [2024-02-07 19:25:53,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 97 transitions, 374 flow [2024-02-07 19:25:53,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 97 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:25:53,133 INFO L231 Difference]: Finished difference. Result has 73 places, 63 transitions, 160 flow [2024-02-07 19:25:53,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=73, PETRI_TRANSITIONS=63} [2024-02-07 19:25:53,134 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, -59 predicate places. [2024-02-07 19:25:53,134 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 63 transitions, 160 flow [2024-02-07 19:25:53,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-02-07 19:25:53,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:25:53,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:25:53,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:25:53,135 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 139 more)] === [2024-02-07 19:25:53,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:25:53,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1768904287, now seen corresponding path program 1 times [2024-02-07 19:25:53,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:25:53,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407978546] [2024-02-07 19:25:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:25:53,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:25:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:25:53,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:25:53,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:25:53,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407978546] [2024-02-07 19:25:53,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407978546] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:25:53,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:25:53,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:25:53,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905241768] [2024-02-07 19:25:53,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:25:53,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:25:53,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:25:53,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:25:53,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:25:53,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 124 [2024-02-07 19:25:53,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 63 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-02-07 19:25:53,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:25:53,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 124 [2024-02-07 19:25:53,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:26:01,395 INFO L124 PetriNetUnfolderBase]: 85843/115587 cut-off events. [2024-02-07 19:26:01,396 INFO L125 PetriNetUnfolderBase]: For 10346/10346 co-relation queries the response was YES. [2024-02-07 19:26:01,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251655 conditions, 115587 events. 85843/115587 cut-off events. For 10346/10346 co-relation queries the response was YES. Maximal size of possible extension queue 5772. Compared 858017 event pairs, 8270 based on Foata normal form. 0/68846 useless extension candidates. Maximal degree in co-relation 251650. Up to 106270 conditions per place. [2024-02-07 19:26:02,145 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 77 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-02-07 19:26:02,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 93 transitions, 396 flow [2024-02-07 19:26:02,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:26:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:26:02,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2024-02-07 19:26:02,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3467741935483871 [2024-02-07 19:26:02,147 INFO L175 Difference]: Start difference. First operand has 73 places, 63 transitions, 160 flow. Second operand 3 states and 129 transitions. [2024-02-07 19:26:02,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 93 transitions, 396 flow [2024-02-07 19:26:02,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 93 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:26:02,150 INFO L231 Difference]: Finished difference. Result has 75 places, 63 transitions, 164 flow [2024-02-07 19:26:02,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=75, PETRI_TRANSITIONS=63} [2024-02-07 19:26:02,151 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, -57 predicate places. [2024-02-07 19:26:02,151 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 164 flow [2024-02-07 19:26:02,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-02-07 19:26:02,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:26:02,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:26:02,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:26:02,152 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err8ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 139 more)] === [2024-02-07 19:26:02,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:26:02,153 INFO L85 PathProgramCache]: Analyzing trace with hash -998491127, now seen corresponding path program 1 times [2024-02-07 19:26:02,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:26:02,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865015288] [2024-02-07 19:26:02,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:26:02,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:26:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:26:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:26:02,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:26:02,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865015288] [2024-02-07 19:26:02,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865015288] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:26:02,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:26:02,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:26:02,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311501318] [2024-02-07 19:26:02,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:26:02,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:26:02,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:26:02,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:26:02,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:26:02,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 124 [2024-02-07 19:26:02,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-02-07 19:26:02,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:26:02,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 124 [2024-02-07 19:26:02,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand