./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/thin002_power.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/thin002_power.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 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/thin002_power.opt.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/thin002_power.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-dev-958ec4d-m [2024-02-07 14:53:04,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:53:04,908 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:53:04,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:53:04,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:53:04,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:53:04,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:53:04,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:53:04,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:53:04,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:53:04,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:53:04,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:53:04,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:53:04,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:53:04,943 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:53:04,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:53:04,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:53:04,944 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:53:04,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:53:04,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:53:04,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:53:04,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:53:04,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:53:04,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:53:04,946 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:53:04,946 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:53:04,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:53:04,946 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:53:04,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:53:04,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:53:04,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:53:04,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:53:04,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:53:04,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:53:04,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:53:04,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:53:04,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:53:04,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:53:04,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:53:04,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:53:04,950 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:53:04,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:53:04,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:53:04,951 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:53:05,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:53:05,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:53:05,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:53:05,161 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:53:05,162 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:53:05,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_power.opt.i [2024-02-07 14:53:06,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:53:06,548 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:53:06,550 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_power.opt.i [2024-02-07 14:53:06,564 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2f825e49/97ef1e48ee6f4e31bfcea1abd907085d/FLAGeb2955aa5 [2024-02-07 14:53:06,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2f825e49/97ef1e48ee6f4e31bfcea1abd907085d [2024-02-07 14:53:06,578 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:53:06,579 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:53:06,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/thin002_power.opt.yml/witness.yml [2024-02-07 14:53:06,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:53:06,695 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:53:06,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:53:06,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:53:06,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:53:06,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:53:06" (1/2) ... [2024-02-07 14:53:06,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35abdff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:06, skipping insertion in model container [2024-02-07 14:53:06,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:53:06" (1/2) ... [2024-02-07 14:53:06,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@74631976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:06, skipping insertion in model container [2024-02-07 14:53:06,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:53:06" (2/2) ... [2024-02-07 14:53:06,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35abdff9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:06, skipping insertion in model container [2024-02-07 14:53:06,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:53:06" (2/2) ... [2024-02-07 14:53:06,720 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:53:06,880 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:53:06,883 INFO L76 edCorrectnessWitness]: Location invariant before [L817-L817] (z$w_buff1_used == (_Bool)1 && (z$r_buff1_thd3 == (_Bool)0 || z$r_buff1_thd3 == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd3 == (_Bool)0 || z$r_buff0_thd3 == (_Bool)1)) [2024-02-07 14:53:06,884 INFO L76 edCorrectnessWitness]: Location invariant before [L787-L787] ((0 <= __unbuffered_p1_EAX) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) [2024-02-07 14:53:06,884 INFO L76 edCorrectnessWitness]: Location invariant before [L888-L888] (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 14:53:06,884 INFO L76 edCorrectnessWitness]: Location invariant before [L805-L805] ((0 <= z$w_buff1) && (z$w_buff1 <= 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1) [2024-02-07 14:53:06,884 INFO L76 edCorrectnessWitness]: Location invariant before [L885-L885] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 14:53:06,885 INFO L76 edCorrectnessWitness]: Location invariant before [L771-L771] ((0 <= a) && (a <= 1)) && (a == 0 || a == 1) [2024-02-07 14:53:06,885 INFO L76 edCorrectnessWitness]: Location invariant before [L835-L835] ((0 <= z$mem_tmp) && (z$mem_tmp <= 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1) [2024-02-07 14:53:06,885 INFO L76 edCorrectnessWitness]: Location invariant before [L795-L795] 1 <= __unbuffered_cnt [2024-02-07 14:53:06,885 INFO L76 edCorrectnessWitness]: Location invariant before [L819-L819] (z$r_buff1_thd3 == (_Bool)0 || z$r_buff1_thd3 == (_Bool)1) && (((z$w_buff1_used == (_Bool)1 && (z$r_buff0_thd3 == (_Bool)0 || z$r_buff0_thd3 == (_Bool)1)) || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd3 == (_Bool)0 || z$r_buff0_thd3 == (_Bool)1))) [2024-02-07 14:53:06,885 INFO L76 edCorrectnessWitness]: Location invariant before [L899-L899] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 14:53:06,885 INFO L76 edCorrectnessWitness]: Location invariant before [L845-L845] ((((((0 <= z) && (0 <= *__unbuffered_p3_EAX$read_delayed_var)) && (z <= 1)) && (*__unbuffered_p3_EAX$read_delayed_var <= 1)) && (__unbuffered_p3_EAX$read_delayed_var == & z)) && (z == 0 || z == 1)) && (*__unbuffered_p3_EAX$read_delayed_var == 0 || *__unbuffered_p3_EAX$read_delayed_var == 1) [2024-02-07 14:53:06,885 INFO L76 edCorrectnessWitness]: Location invariant before [L802-L802] ((0 <= __unbuffered_p2_EAX) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) [2024-02-07 14:53:06,886 INFO L76 edCorrectnessWitness]: Location invariant before [L839-L839] (((((z$r_buff1_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) || (weak$$choice0 == (_Bool)0 && (weak$$choice1 == (_Bool)0 || weak$$choice1 == (_Bool)1))) || (((z$r_buff0_thd4 == (_Bool)0 && z$r_buff1_thd4 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1)) || (((z$r_buff0_thd4 == (_Bool)0 && z$r_buff1_thd4 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (((z$r_buff0_thd4 == (_Bool)0 && z$r_buff1_thd4 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 14:53:06,886 INFO L76 edCorrectnessWitness]: Location invariant before [L854-L854] ((z$w_buff0_used == (_Bool)0 || z$w_buff0_used == (_Bool)1) || (z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1)) || ((((0 <= z && z <= 1) && z$r_buff0_thd4 == (_Bool)0) && (z == 0 || z == 1)) && (z$w_buff0_used == (_Bool)0 || z$w_buff0_used == (_Bool)1)) [2024-02-07 14:53:06,886 INFO L76 edCorrectnessWitness]: Location invariant before [L860-L860] 0 <= __unbuffered_cnt [2024-02-07 14:53:06,886 INFO L76 edCorrectnessWitness]: Location invariant before [L811-L811] (z$r_buff0_thd2 == (_Bool)0) && (z$r_buff1_thd1 == (_Bool)0) [2024-02-07 14:53:06,886 INFO L76 edCorrectnessWitness]: Location invariant before [L775-L775] x == 1 [2024-02-07 14:53:06,886 INFO L76 edCorrectnessWitness]: Location invariant before [L893-L893] z$r_buff1_thd0 == (_Bool)0 [2024-02-07 14:53:06,887 INFO L76 edCorrectnessWitness]: Location invariant before [L812-L812] (z$r_buff1_thd2 == (_Bool)0) && (z$r_buff0_thd3 == (_Bool)0 || z$r_buff0_thd3 == (_Bool)1) [2024-02-07 14:53:06,887 INFO L76 edCorrectnessWitness]: Location invariant before [L898-L898] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 14:53:06,887 INFO L76 edCorrectnessWitness]: Location invariant before [L834-L834] (((0 <= z) && (z <= 1)) && (z == 0 || z == 1)) && (z$flush_delayed == (_Bool)0 || z$flush_delayed == (_Bool)1) [2024-02-07 14:53:06,887 INFO L76 edCorrectnessWitness]: Location invariant before [L836-L836] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 14:53:06,887 INFO L76 edCorrectnessWitness]: Location invariant before [L844-L844] __unbuffered_p3_EAX$read_delayed == (_Bool)1 [2024-02-07 14:53:06,888 INFO L76 edCorrectnessWitness]: Location invariant before [L813-L813] (z$r_buff0_thd4 == (_Bool)0) && (z$r_buff1_thd3 == (_Bool)0 || z$r_buff1_thd3 == (_Bool)1) [2024-02-07 14:53:06,888 INFO L76 edCorrectnessWitness]: Location invariant before [L790-L790] y == 1 [2024-02-07 14:53:06,888 INFO L76 edCorrectnessWitness]: Location invariant before [L848-L848] z$flush_delayed == (_Bool)0 [2024-02-07 14:53:06,888 INFO L76 edCorrectnessWitness]: Location invariant before [L897-L897] ((((0 <= __unbuffered_p3_EAX) && (__unbuffered_p3_EAX <= 1)) && (__unbuffered_p0_EAX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && ((__unbuffered_p1_EAX == 1 && (__unbuffered_p2_EAX == 1 || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) || (((((0 <= __unbuffered_p1_EAX && 0 <= __unbuffered_p2_EAX) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) [2024-02-07 14:53:06,888 INFO L76 edCorrectnessWitness]: Location invariant before [L851-L851] a == 1 [2024-02-07 14:53:06,888 INFO L76 edCorrectnessWitness]: Location invariant before [L814-L814] z$r_buff1_thd4 == (_Bool)0 [2024-02-07 14:53:06,888 INFO L76 edCorrectnessWitness]: Location invariant before [L779-L779] 0 <= __unbuffered_cnt [2024-02-07 14:53:06,889 INFO L76 edCorrectnessWitness]: Location invariant before [L892-L892] (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 14:53:06,889 INFO L76 edCorrectnessWitness]: Location invariant before [L821-L821] (z$r_buff1_thd3 == (_Bool)0 || z$r_buff1_thd3 == (_Bool)1) && (((z$w_buff1_used == (_Bool)1 && (z$r_buff0_thd3 == (_Bool)0 || z$r_buff0_thd3 == (_Bool)1)) || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd3 == (_Bool)0 || z$r_buff0_thd3 == (_Bool)1))) [2024-02-07 14:53:06,889 INFO L76 edCorrectnessWitness]: Location invariant before [L833-L833] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 14:53:06,889 INFO L76 edCorrectnessWitness]: Location invariant before [L840-L840] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 14:53:06,889 INFO L76 edCorrectnessWitness]: Location invariant before [L847-L847] ((0 <= z) && (z <= 1)) && (z == 0 || z == 1) [2024-02-07 14:53:06,889 INFO L76 edCorrectnessWitness]: Location invariant before [L820-L820] (z$w_buff0_used == (_Bool)1) && (z$r_buff0_thd3 == (_Bool)0 || z$r_buff0_thd3 == (_Bool)1) [2024-02-07 14:53:06,890 INFO L76 edCorrectnessWitness]: Location invariant before [L843-L843] z$r_buff1_thd4 == (_Bool)0 [2024-02-07 14:53:06,890 INFO L76 edCorrectnessWitness]: Location invariant before [L842-L842] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 14:53:06,891 INFO L76 edCorrectnessWitness]: Location invariant before [L810-L810] (z$r_buff0_thd1 == (_Bool)0) && (z$r_buff1_thd0 == (_Bool)0) [2024-02-07 14:53:06,892 INFO L76 edCorrectnessWitness]: Location invariant before [L858-L858] z$r_buff1_thd4 == (_Bool)0 [2024-02-07 14:53:06,892 INFO L76 edCorrectnessWitness]: Location invariant before [L861-L861] 1 <= __unbuffered_cnt [2024-02-07 14:53:06,892 INFO L76 edCorrectnessWitness]: Location invariant before [L856-L856] (z$r_buff0_thd4 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 14:53:06,892 INFO L76 edCorrectnessWitness]: Location invariant before [L822-L822] z$r_buff1_thd3 == (_Bool)0 || z$r_buff1_thd3 == (_Bool)1 [2024-02-07 14:53:06,892 INFO L76 edCorrectnessWitness]: Location invariant before [L891-L891] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 14:53:06,892 INFO L76 edCorrectnessWitness]: Location invariant before [L807-L807] z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1 [2024-02-07 14:53:06,893 INFO L76 edCorrectnessWitness]: Location invariant before [L815-L815] z$r_buff0_thd3 == (_Bool)1 [2024-02-07 14:53:06,893 INFO L76 edCorrectnessWitness]: Location invariant before [L794-L794] 0 <= __unbuffered_cnt [2024-02-07 14:53:06,893 INFO L76 edCorrectnessWitness]: Location invariant before [L832-L832] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 14:53:06,893 INFO L76 edCorrectnessWitness]: Location invariant before [L772-L772] ((0 <= __unbuffered_p0_EAX) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) [2024-02-07 14:53:06,893 INFO L76 edCorrectnessWitness]: Location invariant before [L853-L853] (z$r_buff1_thd4 == (_Bool)0 && z$w_buff1_used == (_Bool)1) || (z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 14:53:06,893 INFO L76 edCorrectnessWitness]: Location invariant before [L890-L890] (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 14:53:06,894 INFO L76 edCorrectnessWitness]: Location invariant before [L889-L889] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 14:53:06,894 INFO L76 edCorrectnessWitness]: Location invariant before [L804-L804] ((0 <= z$w_buff0) && (z$w_buff0 <= 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1) [2024-02-07 14:53:06,894 INFO L76 edCorrectnessWitness]: Location invariant before [L884-L884] 0 <= __unbuffered_cnt [2024-02-07 14:53:06,894 INFO L76 edCorrectnessWitness]: Location invariant before [L801-L801] ((0 <= y) && (y <= 1)) && (y == 0 || y == 1) [2024-02-07 14:53:06,894 INFO L76 edCorrectnessWitness]: Location invariant before [L824-L824] 0 <= __unbuffered_cnt [2024-02-07 14:53:06,894 INFO L76 edCorrectnessWitness]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 14:53:06,894 INFO L76 edCorrectnessWitness]: Location invariant before [L818-L818] (z$w_buff0_used == (_Bool)1) && (z$r_buff0_thd3 == (_Bool)0 || z$r_buff0_thd3 == (_Bool)1) [2024-02-07 14:53:06,894 INFO L76 edCorrectnessWitness]: Location invariant before [L780-L780] 1 <= __unbuffered_cnt [2024-02-07 14:53:06,895 INFO L76 edCorrectnessWitness]: Location invariant before [L855-L855] (z$r_buff1_thd4 == (_Bool)0 && (z$w_buff1_used == (_Bool)1 || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 14:53:06,895 INFO L76 edCorrectnessWitness]: Location invariant before [L808-L808] (z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)1) [2024-02-07 14:53:06,895 INFO L76 edCorrectnessWitness]: Location invariant before [L837-L837] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 14:53:06,895 INFO L76 edCorrectnessWitness]: Location invariant before [L857-L857] (z$r_buff1_thd4 == (_Bool)0 && (z$w_buff1_used == (_Bool)1 || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd4 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 14:53:06,895 INFO L76 edCorrectnessWitness]: Location invariant before [L786-L786] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:53:06,895 INFO L76 edCorrectnessWitness]: Location invariant before [L809-L809] z$r_buff0_thd0 == (_Bool)0 [2024-02-07 14:53:06,895 INFO L76 edCorrectnessWitness]: Location invariant before [L838-L838] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 14:53:06,895 INFO L76 edCorrectnessWitness]: Location invariant before [L841-L841] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 14:53:06,896 INFO L76 edCorrectnessWitness]: Location invariant before [L825-L825] 1 <= __unbuffered_cnt [2024-02-07 14:53:06,896 INFO L76 edCorrectnessWitness]: Location invariant before [L886-L886] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 14:53:06,896 INFO L76 edCorrectnessWitness]: Location invariant before [L876-L876] ((((0LL - (long long )z$w_buff0_used) + (long long )z$w_buff1_used >= 0LL) && ((long long )z$w_buff0_used + (long long )z$w_buff1_used >= 0LL)) && ((0LL - (long long )z$w_buff0_used) - (long long )z$w_buff1_used >= 0LL)) && ((long long )z$w_buff0_used - (long long )z$w_buff1_used >= 0LL) [2024-02-07 14:53:06,896 INFO L76 edCorrectnessWitness]: Location invariant before [L806-L806] (z$w_buff0 == 1) && (z$w_buff0_used == (_Bool)0 || z$w_buff0_used == (_Bool)1) [2024-02-07 14:53:06,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:53:07,094 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/thin002_power.opt.i[951,964] [2024-02-07 14:53:07,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:53:07,300 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 14:53:07,328 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/thin002_power.opt.i[951,964] 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 14:53:07,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:53:07,492 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:53:07,492 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07 WrapperNode [2024-02-07 14:53:07,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:53:07,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:53:07,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:53:07,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:53:07,500 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 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,532 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 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,574 INFO L138 Inliner]: procedures = 177, calls = 104, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 236 [2024-02-07 14:53:07,575 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:53:07,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:53:07,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:53:07,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:53:07,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,596 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,613 INFO L175 MemorySlicer]: Split 42 memory accesses to 6 slices as follows [2, 1, 1, 1, 36, 1]. 86 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 0, 1, 0]. The 9 writes are split as follows [0, 1, 1, 1, 5, 1]. [2024-02-07 14:53:07,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:53:07,637 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:53:07,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:53:07,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:53:07,638 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (1/1) ... [2024-02-07 14:53:07,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:53:07,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:53:07,673 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 14:53:07,699 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 14:53:07,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 14:53:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 14:53:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 14:53:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 14:53:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 14:53:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-07 14:53:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:53:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:53:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:53:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:53:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 14:53:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-07 14:53:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 14:53:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:53:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:53:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:53:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 14:53:07,724 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 14:53:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 14:53:07,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 14:53:07,725 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 14:53:07,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 14:53:07,725 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-02-07 14:53:07,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-02-07 14:53:07,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:53:07,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:53:07,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:53:07,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:53:07,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 14:53:07,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-07 14:53:07,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 14:53:07,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:53:07,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:53:07,727 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 14:53:07,895 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:53:07,897 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:53:08,366 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:53:08,366 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:53:09,196 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:53:09,197 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:53:09,197 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:53:09 BoogieIcfgContainer [2024-02-07 14:53:09,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:53:09,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:53:09,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:53:09,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:53:09,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:53:06" (1/4) ... [2024-02-07 14:53:09,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a993b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:53:09, skipping insertion in model container [2024-02-07 14:53:09,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:53:06" (2/4) ... [2024-02-07 14:53:09,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a993b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:53:09, skipping insertion in model container [2024-02-07 14:53:09,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:07" (3/4) ... [2024-02-07 14:53:09,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a993b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:53:09, skipping insertion in model container [2024-02-07 14:53:09,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:53:09" (4/4) ... [2024-02-07 14:53:09,204 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2024-02-07 14:53:09,219 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:53:09,219 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2024-02-07 14:53:09,219 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:53:09,392 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:53:09,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 122 transitions, 260 flow [2024-02-07 14:53:09,514 INFO L124 PetriNetUnfolderBase]: 1/118 cut-off events. [2024-02-07 14:53:09,515 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:53:09,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 118 events. 1/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 609 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2024-02-07 14:53:09,522 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 122 transitions, 260 flow [2024-02-07 14:53:09,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 118 transitions, 248 flow [2024-02-07 14:53:09,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:53:09,561 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;@a9c6df3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:53:09,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 137 error locations. [2024-02-07 14:53:09,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:53:09,564 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-07 14:53:09,564 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:53:09,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:53:09,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-07 14:53:09,565 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 134 more)] === [2024-02-07 14:53:09,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:53:09,572 INFO L85 PathProgramCache]: Analyzing trace with hash 41942, now seen corresponding path program 1 times [2024-02-07 14:53:09,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:53:09,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425578412] [2024-02-07 14:53:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:53:09,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:53:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:53:09,982 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 14:53:09,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:53:09,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425578412] [2024-02-07 14:53:09,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425578412] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:53:09,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:53:09,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:53:09,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753875581] [2024-02-07 14:53:09,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:53:09,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:53:09,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:53:10,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:53:10,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:53:10,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 122 [2024-02-07 14:53:10,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 118 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 14:53:10,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:53:10,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 122 [2024-02-07 14:53:10,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:53:17,650 INFO L124 PetriNetUnfolderBase]: 50700/75041 cut-off events. [2024-02-07 14:53:17,664 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2024-02-07 14:53:17,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144301 conditions, 75041 events. 50700/75041 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 3332. Compared 602930 event pairs, 23820 based on Foata normal form. 882/44127 useless extension candidates. Maximal degree in co-relation 144287. Up to 42904 conditions per place. [2024-02-07 14:53:18,325 INFO L140 encePairwiseOnDemand]: 73/122 looper letters, 75 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-02-07 14:53:18,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 90 transitions, 349 flow [2024-02-07 14:53:18,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:53:18,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:53:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2024-02-07 14:53:18,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5300546448087432 [2024-02-07 14:53:18,338 INFO L175 Difference]: Start difference. First operand has 130 places, 118 transitions, 248 flow. Second operand 3 states and 194 transitions. [2024-02-07 14:53:18,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 90 transitions, 349 flow [2024-02-07 14:53:18,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 90 transitions, 344 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-07 14:53:18,355 INFO L231 Difference]: Finished difference. Result has 79 places, 67 transitions, 162 flow [2024-02-07 14:53:18,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=79, PETRI_TRANSITIONS=67} [2024-02-07 14:53:18,359 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -51 predicate places. [2024-02-07 14:53:18,359 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 67 transitions, 162 flow [2024-02-07 14:53:18,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 14:53:18,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:53:18,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 14:53:18,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:53:18,361 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 134 more)] === [2024-02-07 14:53:18,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:53:18,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1250945124, now seen corresponding path program 1 times [2024-02-07 14:53:18,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:53:18,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047735648] [2024-02-07 14:53:18,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:53:18,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:53:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:53:18,446 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 14:53:18,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:53:18,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047735648] [2024-02-07 14:53:18,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047735648] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:53:18,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:53:18,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:53:18,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203968397] [2024-02-07 14:53:18,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:53:18,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:53:18,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:53:18,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:53:18,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:53:18,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 122 [2024-02-07 14:53:18,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 67 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 14:53:18,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:53:18,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 122 [2024-02-07 14:53:18,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:53:24,458 INFO L124 PetriNetUnfolderBase]: 45277/64941 cut-off events. [2024-02-07 14:53:24,458 INFO L125 PetriNetUnfolderBase]: For 2184/2250 co-relation queries the response was YES. [2024-02-07 14:53:24,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134275 conditions, 64941 events. 45277/64941 cut-off events. For 2184/2250 co-relation queries the response was YES. Maximal size of possible extension queue 3118. Compared 496184 event pairs, 30976 based on Foata normal form. 0/40919 useless extension candidates. Maximal degree in co-relation 134262. Up to 40720 conditions per place. [2024-02-07 14:53:24,803 INFO L140 encePairwiseOnDemand]: 119/122 looper letters, 75 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-02-07 14:53:24,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 90 transitions, 368 flow [2024-02-07 14:53:24,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:53:24,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:53:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 132 transitions. [2024-02-07 14:53:24,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36065573770491804 [2024-02-07 14:53:24,809 INFO L175 Difference]: Start difference. First operand has 79 places, 67 transitions, 162 flow. Second operand 3 states and 132 transitions. [2024-02-07 14:53:24,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 90 transitions, 368 flow [2024-02-07 14:53:24,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 90 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:53:24,816 INFO L231 Difference]: Finished difference. Result has 80 places, 67 transitions, 166 flow [2024-02-07 14:53:24,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=80, PETRI_TRANSITIONS=67} [2024-02-07 14:53:24,820 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -50 predicate places. [2024-02-07 14:53:24,820 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 67 transitions, 166 flow [2024-02-07 14:53:24,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 14:53:24,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:53:24,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:53:24,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:53:24,822 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 134 more)] === [2024-02-07 14:53:24,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:53:24,825 INFO L85 PathProgramCache]: Analyzing trace with hash -433551965, now seen corresponding path program 1 times [2024-02-07 14:53:24,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:53:24,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501807276] [2024-02-07 14:53:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:53:24,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:53:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:53:24,867 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 14:53:24,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:53:24,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501807276] [2024-02-07 14:53:24,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501807276] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:53:24,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:53:24,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:53:24,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283408692] [2024-02-07 14:53:24,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:53:24,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:53:24,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:53:24,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:53:24,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:53:24,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 122 [2024-02-07 14:53:24,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 67 transitions, 166 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 14:53:24,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:53:24,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 122 [2024-02-07 14:53:24,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:53:30,240 INFO L124 PetriNetUnfolderBase]: 42670/62173 cut-off events. [2024-02-07 14:53:30,240 INFO L125 PetriNetUnfolderBase]: For 2276/2301 co-relation queries the response was YES. [2024-02-07 14:53:30,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128123 conditions, 62173 events. 42670/62173 cut-off events. For 2276/2301 co-relation queries the response was YES. Maximal size of possible extension queue 3057. Compared 501106 event pairs, 13698 based on Foata normal form. 5/39822 useless extension candidates. Maximal degree in co-relation 128109. Up to 40327 conditions per place. [2024-02-07 14:53:30,643 INFO L140 encePairwiseOnDemand]: 119/122 looper letters, 96 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2024-02-07 14:53:30,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 111 transitions, 474 flow [2024-02-07 14:53:30,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:53:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:53:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2024-02-07 14:53:30,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4180327868852459 [2024-02-07 14:53:30,645 INFO L175 Difference]: Start difference. First operand has 80 places, 67 transitions, 166 flow. Second operand 3 states and 153 transitions. [2024-02-07 14:53:30,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 111 transitions, 474 flow [2024-02-07 14:53:30,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 111 transitions, 468 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:53:30,654 INFO L231 Difference]: Finished difference. Result has 81 places, 67 transitions, 170 flow [2024-02-07 14:53:30,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=81, PETRI_TRANSITIONS=67} [2024-02-07 14:53:30,658 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -49 predicate places. [2024-02-07 14:53:30,659 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 67 transitions, 170 flow [2024-02-07 14:53:30,659 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 14:53:30,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:53:30,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:53:30,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 14:53:30,663 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 134 more)] === [2024-02-07 14:53:30,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:53:30,664 INFO L85 PathProgramCache]: Analyzing trace with hash -523635164, now seen corresponding path program 1 times [2024-02-07 14:53:30,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:53:30,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867521525] [2024-02-07 14:53:30,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:53:30,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:53:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:53:30,724 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 14:53:30,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:53:30,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867521525] [2024-02-07 14:53:30,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867521525] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:53:30,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:53:30,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:53:30,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858657221] [2024-02-07 14:53:30,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:53:30,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:53:30,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:53:30,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:53:30,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:53:30,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 122 [2024-02-07 14:53:30,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 67 transitions, 170 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 14:53:30,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:53:30,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 122 [2024-02-07 14:53:30,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:53:35,057 INFO L124 PetriNetUnfolderBase]: 32036/45360 cut-off events. [2024-02-07 14:53:35,058 INFO L125 PetriNetUnfolderBase]: For 4238/4258 co-relation queries the response was YES. [2024-02-07 14:53:35,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99745 conditions, 45360 events. 32036/45360 cut-off events. For 4238/4258 co-relation queries the response was YES. Maximal size of possible extension queue 2218. Compared 324462 event pairs, 10398 based on Foata normal form. 0/31702 useless extension candidates. Maximal degree in co-relation 99730. Up to 33366 conditions per place. [2024-02-07 14:53:35,264 INFO L140 encePairwiseOnDemand]: 114/122 looper letters, 94 selfloop transitions, 4 changer transitions 0/111 dead transitions. [2024-02-07 14:53:35,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 111 transitions, 483 flow [2024-02-07 14:53:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:53:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:53:35,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2024-02-07 14:53:35,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4262295081967213 [2024-02-07 14:53:35,265 INFO L175 Difference]: Start difference. First operand has 81 places, 67 transitions, 170 flow. Second operand 3 states and 156 transitions. [2024-02-07 14:53:35,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 111 transitions, 483 flow [2024-02-07 14:53:35,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 111 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:53:35,268 INFO L231 Difference]: Finished difference. Result has 82 places, 70 transitions, 198 flow [2024-02-07 14:53:35,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=82, PETRI_TRANSITIONS=70} [2024-02-07 14:53:35,269 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -48 predicate places. [2024-02-07 14:53:35,269 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 198 flow [2024-02-07 14:53:35,269 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 14:53:35,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:53:35,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:53:35,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 14:53:35,270 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 134 more)] === [2024-02-07 14:53:35,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:53:35,270 INFO L85 PathProgramCache]: Analyzing trace with hash -32689260, now seen corresponding path program 1 times [2024-02-07 14:53:35,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:53:35,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659861188] [2024-02-07 14:53:35,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:53:35,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:53:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:53:35,305 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 14:53:35,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:53:35,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659861188] [2024-02-07 14:53:35,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659861188] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:53:35,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:53:35,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:53:35,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797028899] [2024-02-07 14:53:35,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:53:35,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:53:35,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:53:35,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:53:35,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:53:35,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 122 [2024-02-07 14:53:35,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 198 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 14:53:35,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:53:35,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 122 [2024-02-07 14:53:35,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand