./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 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/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-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:31:11,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:31:11,554 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:31:11,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:31:11,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:31:11,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:31:11,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:31:11,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:31:11,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:31:11,583 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:31:11,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:31:11,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:31:11,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:31:11,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:31:11,584 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:31:11,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:31:11,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:31:11,585 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:31:11,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:31:11,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:31:11,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:31:11,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:31:11,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:31:11,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:31:11,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:31:11,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:31:11,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:31:11,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:31:11,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:31:11,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:31:11,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:31:11,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:31:11,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:31:11,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:31:11,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:31:11,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:31:11,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:31:11,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:31:11,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:31:11,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:31:11,591 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:31:11,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:31:11,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:31:11,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:31:11,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:31:11,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:31:11,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:31:11,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:31:11,851 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:31:11,852 INFO L431 ainManager$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 19:31:13,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:31:13,296 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:31:13,297 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_power.opt.i [2024-02-07 19:31:13,310 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7baee8f6/53bb669d5886487095652ccc9fda6147/FLAG8c1186d9f [2024-02-07 19:31:13,320 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7baee8f6/53bb669d5886487095652ccc9fda6147 [2024-02-07 19:31:13,322 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:31:13,327 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:31:13,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/thin002_power.opt.yml/witness.yml [2024-02-07 19:31:13,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:31:13,433 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:31:13,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:31:13,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:31:13,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:31:13,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:31:13" (1/2) ... [2024-02-07 19:31:13,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b49b88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:31:13, skipping insertion in model container [2024-02-07 19:31:13,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:31:13" (1/2) ... [2024-02-07 19:31:13,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@767bedc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:31:13, skipping insertion in model container [2024-02-07 19:31:13,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:31:13" (2/2) ... [2024-02-07 19:31:13,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b49b88 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:31:13, skipping insertion in model container [2024-02-07 19:31:13,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:31:13" (2/2) ... [2024-02-07 19:31:13,444 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:31:13,610 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:31:13,612 INFO L76 edCorrectnessWitness]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 19:31:13,612 INFO L76 edCorrectnessWitness]: Location invariant before [L858-L858] z$r_buff1_thd4 == (_Bool)0 [2024-02-07 19:31:13,612 INFO L76 edCorrectnessWitness]: Location invariant before [L786-L786] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 19:31:13,612 INFO L76 edCorrectnessWitness]: Location invariant before [L847-L847] ((0 <= z) && (z <= 1)) && (z == 0 || z == 1) [2024-02-07 19:31:13,612 INFO L76 edCorrectnessWitness]: Location invariant before [L780-L780] 1 <= __unbuffered_cnt [2024-02-07 19:31:13,613 INFO L76 edCorrectnessWitness]: Location invariant before [L840-L840] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 19:31:13,613 INFO L76 edCorrectnessWitness]: Location invariant before [L806-L806] (z$w_buff0 == 1) && (z$w_buff0_used == (_Bool)0 || z$w_buff0_used == (_Bool)1) [2024-02-07 19:31:13,616 INFO L76 edCorrectnessWitness]: Location invariant before [L856-L856] (z$r_buff0_thd4 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 19:31:13,616 INFO L76 edCorrectnessWitness]: Location invariant before [L805-L805] ((0 <= z$w_buff1) && (z$w_buff1 <= 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1) [2024-02-07 19:31:13,616 INFO L76 edCorrectnessWitness]: Location invariant before [L893-L893] z$r_buff1_thd0 == (_Bool)0 [2024-02-07 19:31:13,617 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 19:31:13,617 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$read_delayed_var == 1) [2024-02-07 19:31:13,617 INFO L76 edCorrectnessWitness]: Location invariant before [L898-L898] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 19:31:13,617 INFO L76 edCorrectnessWitness]: Location invariant before [L809-L809] z$r_buff0_thd0 == (_Bool)0 [2024-02-07 19:31:13,617 INFO L76 edCorrectnessWitness]: Location invariant before [L891-L891] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 19:31:13,617 INFO L76 edCorrectnessWitness]: Location invariant before [L889-L889] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 19:31:13,617 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 19:31:13,618 INFO L76 edCorrectnessWitness]: Location invariant before [L848-L848] z$flush_delayed == (_Bool)0 [2024-02-07 19:31:13,618 INFO L76 edCorrectnessWitness]: Location invariant before [L772-L772] ((0 <= __unbuffered_p0_EAX) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) [2024-02-07 19:31:13,618 INFO L76 edCorrectnessWitness]: Location invariant before [L819-L819] (z$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$r_buff0_thd3 == (_Bool)1))) [2024-02-07 19:31:13,619 INFO L76 edCorrectnessWitness]: Location invariant before [L888-L888] (z$r_buff1_thd0 == (_Bool)0 && z$w_buff1_used == (_Bool)1) || (z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 19:31:13,619 INFO L76 edCorrectnessWitness]: Location invariant before [L854-L854] ((z$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 19:31:13,619 INFO L76 edCorrectnessWitness]: Location invariant before [L814-L814] z$r_buff1_thd4 == (_Bool)0 [2024-02-07 19:31:13,619 INFO L76 edCorrectnessWitness]: Location invariant before [L892-L892] (z$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$w_buff0_used == (_Bool)1) [2024-02-07 19:31:13,619 INFO L76 edCorrectnessWitness]: Location invariant before [L844-L844] __unbuffered_p3_EAX$read_delayed == (_Bool)1 [2024-02-07 19:31:13,620 INFO L76 edCorrectnessWitness]: Location invariant before [L810-L810] (z$r_buff0_thd1 == (_Bool)0) && (z$r_buff1_thd0 == (_Bool)0) [2024-02-07 19:31:13,620 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 19:31:13,620 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 19:31:13,620 INFO L76 edCorrectnessWitness]: Location invariant before [L842-L842] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 19:31:13,620 INFO L76 edCorrectnessWitness]: Location invariant before [L824-L824] 0 <= __unbuffered_cnt [2024-02-07 19:31:13,620 INFO L76 edCorrectnessWitness]: Location invariant before [L835-L835] ((0 <= z$mem_tmp) && (z$mem_tmp <= 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1) [2024-02-07 19:31:13,620 INFO L76 edCorrectnessWitness]: Location invariant before [L812-L812] (z$r_buff1_thd2 == (_Bool)0) && (z$r_buff0_thd3 == (_Bool)0 || z$r_buff0_thd3 == (_Bool)1) [2024-02-07 19:31:13,621 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 19:31:13,621 INFO L76 edCorrectnessWitness]: Location invariant before [L795-L795] 1 <= __unbuffered_cnt [2024-02-07 19:31:13,621 INFO L76 edCorrectnessWitness]: Location invariant before [L860-L860] 0 <= __unbuffered_cnt [2024-02-07 19:31:13,621 INFO L76 edCorrectnessWitness]: Location invariant before [L833-L833] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 19:31:13,621 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 19:31:13,621 INFO L76 edCorrectnessWitness]: Location invariant before [L818-L818] (z$w_buff0_used == (_Bool)1) && (z$r_buff0_thd3 == (_Bool)0 || z$r_buff0_thd3 == (_Bool)1) [2024-02-07 19:31:13,623 INFO L76 edCorrectnessWitness]: Location invariant before [L790-L790] y == 1 [2024-02-07 19:31:13,623 INFO L76 edCorrectnessWitness]: Location invariant before [L890-L890] (z$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$w_buff0_used == (_Bool)1) [2024-02-07 19:31:13,623 INFO L76 edCorrectnessWitness]: Location invariant before [L884-L884] 0 <= __unbuffered_cnt [2024-02-07 19:31:13,623 INFO L76 edCorrectnessWitness]: Location invariant before [L839-L839] (((((z$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 19:31:13,623 INFO L76 edCorrectnessWitness]: Location invariant before [L886-L886] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:31:13,623 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 19:31:13,624 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 19:31:13,624 INFO L76 edCorrectnessWitness]: Location invariant before [L794-L794] 0 <= __unbuffered_cnt [2024-02-07 19:31:13,624 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 19:31:13,625 INFO L76 edCorrectnessWitness]: Location invariant before [L775-L775] x == 1 [2024-02-07 19:31:13,625 INFO L76 edCorrectnessWitness]: Location invariant before [L899-L899] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 19:31:13,625 INFO L76 edCorrectnessWitness]: Location invariant before [L811-L811] (z$r_buff0_thd2 == (_Bool)0) && (z$r_buff1_thd1 == (_Bool)0) [2024-02-07 19:31:13,625 INFO L76 edCorrectnessWitness]: Location invariant before [L861-L861] 1 <= __unbuffered_cnt [2024-02-07 19:31:13,625 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 19:31:13,626 INFO L76 edCorrectnessWitness]: Location invariant before [L825-L825] 1 <= __unbuffered_cnt [2024-02-07 19:31:13,626 INFO L76 edCorrectnessWitness]: Location invariant before [L885-L885] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:31:13,626 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 19:31:13,627 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 19:31:13,627 INFO L76 edCorrectnessWitness]: Location invariant before [L843-L843] z$r_buff1_thd4 == (_Bool)0 [2024-02-07 19:31:13,627 INFO L76 edCorrectnessWitness]: Location invariant before [L779-L779] 0 <= __unbuffered_cnt [2024-02-07 19:31:13,628 INFO L76 edCorrectnessWitness]: Location invariant before [L832-L832] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 19:31:13,628 INFO L76 edCorrectnessWitness]: Location invariant before [L807-L807] z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1 [2024-02-07 19:31:13,628 INFO L76 edCorrectnessWitness]: Location invariant before [L851-L851] a == 1 [2024-02-07 19:31:13,629 INFO L76 edCorrectnessWitness]: Location invariant before [L837-L837] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 19:31:13,629 INFO L76 edCorrectnessWitness]: Location invariant before [L836-L836] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 19:31:13,629 INFO L76 edCorrectnessWitness]: Location invariant before [L838-L838] (z$w_buff0_used == (_Bool)1) && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)0) [2024-02-07 19:31:13,629 INFO L76 edCorrectnessWitness]: Location invariant before [L771-L771] ((0 <= a) && (a <= 1)) && (a == 0 || a == 1) [2024-02-07 19:31:13,629 INFO L76 edCorrectnessWitness]: Location invariant before [L808-L808] (z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)1) [2024-02-07 19:31:13,629 INFO L76 edCorrectnessWitness]: Location invariant before [L801-L801] ((0 <= y) && (y <= 1)) && (y == 0 || y == 1) [2024-02-07 19:31:13,630 INFO L76 edCorrectnessWitness]: Location invariant before [L815-L815] z$r_buff0_thd3 == (_Bool)1 [2024-02-07 19:31:13,630 INFO L76 edCorrectnessWitness]: Location invariant before [L822-L822] z$r_buff1_thd3 == (_Bool)0 || z$r_buff1_thd3 == (_Bool)1 [2024-02-07 19:31:13,630 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 19:31:13,630 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 19:31:13,673 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:31:13,806 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 19:31:13,983 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:31:13,998 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 19:31:14,034 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 19:31:14,141 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:31:14,187 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:31:14,187 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:31:14 WrapperNode [2024-02-07 19:31:14,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:31:14,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:31:14,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:31:14,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:31:14,194 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,225 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,299 INFO L138 Inliner]: procedures = 177, calls = 104, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 236 [2024-02-07 19:31:14,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:31:14,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:31:14,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:31:14,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:31:14,318 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,318 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,330 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,352 INFO L175 MemorySlicer]: Split 42 memory accesses to 6 slices as follows [2, 1, 36, 1, 1, 1]. 86 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 1, 0, 0, 0]. The 9 writes are split as follows [0, 1, 5, 1, 1, 1]. [2024-02-07 19:31:14,363 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,363 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,375 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,385 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,395 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,397 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:31:14,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:31:14,415 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:31:14,415 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:31:14,416 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 07:31:14" (1/1) ... [2024-02-07 19:31:14,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:31:14,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:31:14,437 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 19:31:14,442 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 19:31:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:31:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:31:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:31:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 19:31:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 19:31:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-07 19:31:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:31:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:31:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:31:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:31:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 19:31:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-07 19:31:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:31:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:31:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:31:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:31:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 19:31:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 19:31:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 19:31:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 19:31:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 19:31:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 19:31:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-02-07 19:31:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-02-07 19:31:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:31:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:31:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:31:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:31:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 19:31:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-07 19:31:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:31:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:31:14,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:31:14,471 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 19:31:14,604 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:31:14,606 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:31:15,179 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:31:15,180 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:31:16,038 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:31:16,038 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:31:16,040 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:31:16 BoogieIcfgContainer [2024-02-07 19:31:16,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:31:16,042 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:31:16,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:31:16,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:31:16,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:31:13" (1/4) ... [2024-02-07 19:31:16,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73640f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:31:16, skipping insertion in model container [2024-02-07 19:31:16,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:31:13" (2/4) ... [2024-02-07 19:31:16,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73640f99 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:31:16, skipping insertion in model container [2024-02-07 19:31:16,047 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 07:31:14" (3/4) ... [2024-02-07 19:31:16,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73640f99 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:31:16, skipping insertion in model container [2024-02-07 19:31:16,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:31:16" (4/4) ... [2024-02-07 19:31:16,050 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2024-02-07 19:31:16,067 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:31:16,067 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2024-02-07 19:31:16,067 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:31:16,310 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 19:31:16,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 122 transitions, 260 flow [2024-02-07 19:31:16,407 INFO L124 PetriNetUnfolderBase]: 1/118 cut-off events. [2024-02-07 19:31:16,407 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:31:16,412 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 19:31:16,412 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 122 transitions, 260 flow [2024-02-07 19:31:16,416 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 118 transitions, 248 flow [2024-02-07 19:31:16,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:31:16,475 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;@7a8d3249, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:31:16,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 137 error locations. [2024-02-07 19:31:16,478 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:31:16,478 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-07 19:31:16,478 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:31:16,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:31:16,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-07 19:31:16,479 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 19:31:16,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:31:16,484 INFO L85 PathProgramCache]: Analyzing trace with hash 41942, now seen corresponding path program 1 times [2024-02-07 19:31:16,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:31:16,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935256306] [2024-02-07 19:31:16,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:31:16,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:31:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:31:16,848 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 19:31:16,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:31:16,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935256306] [2024-02-07 19:31:16,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935256306] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:31:16,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:31:16,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:31:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638312465] [2024-02-07 19:31:16,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:31:16,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:31:16,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:31:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:31:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:31:16,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 122 [2024-02-07 19:31:16,884 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 19:31:16,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:31:16,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 122 [2024-02-07 19:31:16,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:31:24,524 INFO L124 PetriNetUnfolderBase]: 50700/75041 cut-off events. [2024-02-07 19:31:24,525 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2024-02-07 19:31:24,674 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 19:31:24,993 INFO L140 encePairwiseOnDemand]: 73/122 looper letters, 75 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-02-07 19:31:24,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 90 transitions, 349 flow [2024-02-07 19:31:24,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:31:24,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:31:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2024-02-07 19:31:25,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5300546448087432 [2024-02-07 19:31:25,005 INFO L175 Difference]: Start difference. First operand has 130 places, 118 transitions, 248 flow. Second operand 3 states and 194 transitions. [2024-02-07 19:31:25,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 90 transitions, 349 flow [2024-02-07 19:31:25,018 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 19:31:25,020 INFO L231 Difference]: Finished difference. Result has 79 places, 67 transitions, 162 flow [2024-02-07 19:31:25,022 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 19:31:25,026 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -51 predicate places. [2024-02-07 19:31:25,027 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 67 transitions, 162 flow [2024-02-07 19:31:25,027 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 19:31:25,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:31:25,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 19:31:25,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:31:25,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 134 more)] === [2024-02-07 19:31:25,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:31:25,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1250945124, now seen corresponding path program 1 times [2024-02-07 19:31:25,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:31:25,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285557863] [2024-02-07 19:31:25,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:31:25,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:31:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:31:25,081 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 19:31:25,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:31:25,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285557863] [2024-02-07 19:31:25,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285557863] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:31:25,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:31:25,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:31:25,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142542470] [2024-02-07 19:31:25,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:31:25,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:31:25,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:31:25,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:31:25,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:31:25,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 122 [2024-02-07 19:31:25,085 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 19:31:25,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:31:25,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 122 [2024-02-07 19:31:25,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:31:31,113 INFO L124 PetriNetUnfolderBase]: 45277/64941 cut-off events. [2024-02-07 19:31:31,113 INFO L125 PetriNetUnfolderBase]: For 2184/2250 co-relation queries the response was YES. [2024-02-07 19:31:31,255 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 19:31:31,504 INFO L140 encePairwiseOnDemand]: 119/122 looper letters, 75 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-02-07 19:31:31,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 90 transitions, 368 flow [2024-02-07 19:31:31,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:31:31,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:31:31,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 132 transitions. [2024-02-07 19:31:31,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36065573770491804 [2024-02-07 19:31:31,510 INFO L175 Difference]: Start difference. First operand has 79 places, 67 transitions, 162 flow. Second operand 3 states and 132 transitions. [2024-02-07 19:31:31,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 90 transitions, 368 flow [2024-02-07 19:31:31,518 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 19:31:31,520 INFO L231 Difference]: Finished difference. Result has 80 places, 67 transitions, 166 flow [2024-02-07 19:31:31,520 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 19:31:31,521 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -50 predicate places. [2024-02-07 19:31:31,521 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 67 transitions, 166 flow [2024-02-07 19:31:31,521 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 19:31:31,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:31:31,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:31:31,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:31:31,522 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 134 more)] === [2024-02-07 19:31:31,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:31:31,524 INFO L85 PathProgramCache]: Analyzing trace with hash -433551965, now seen corresponding path program 1 times [2024-02-07 19:31:31,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:31:31,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45492836] [2024-02-07 19:31:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:31:31,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:31:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:31:31,611 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 19:31:31,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:31:31,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45492836] [2024-02-07 19:31:31,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45492836] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:31:31,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:31:31,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:31:31,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055196316] [2024-02-07 19:31:31,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:31:31,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:31:31,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:31:31,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:31:31,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:31:31,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 122 [2024-02-07 19:31:31,614 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 19:31:31,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:31:31,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 122 [2024-02-07 19:31:31,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:31:37,164 INFO L124 PetriNetUnfolderBase]: 42670/62173 cut-off events. [2024-02-07 19:31:37,164 INFO L125 PetriNetUnfolderBase]: For 2276/2301 co-relation queries the response was YES. [2024-02-07 19:31:37,318 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 19:31:37,578 INFO L140 encePairwiseOnDemand]: 119/122 looper letters, 96 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2024-02-07 19:31:37,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 111 transitions, 474 flow [2024-02-07 19:31:37,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:31:37,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:31:37,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2024-02-07 19:31:37,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4180327868852459 [2024-02-07 19:31:37,580 INFO L175 Difference]: Start difference. First operand has 80 places, 67 transitions, 166 flow. Second operand 3 states and 153 transitions. [2024-02-07 19:31:37,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 111 transitions, 474 flow [2024-02-07 19:31:37,587 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 19:31:37,588 INFO L231 Difference]: Finished difference. Result has 81 places, 67 transitions, 170 flow [2024-02-07 19:31:37,589 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 19:31:37,590 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -49 predicate places. [2024-02-07 19:31:37,590 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 67 transitions, 170 flow [2024-02-07 19:31:37,590 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 19:31:37,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:31:37,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:31:37,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:31:37,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 134 more)] === [2024-02-07 19:31:37,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:31:37,591 INFO L85 PathProgramCache]: Analyzing trace with hash -523635164, now seen corresponding path program 1 times [2024-02-07 19:31:37,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:31:37,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989134807] [2024-02-07 19:31:37,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:31:37,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:31:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:31:37,619 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 19:31:37,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:31:37,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989134807] [2024-02-07 19:31:37,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989134807] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:31:37,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:31:37,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:31:37,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796767947] [2024-02-07 19:31:37,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:31:37,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:31:37,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:31:37,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:31:37,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:31:37,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 122 [2024-02-07 19:31:37,622 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 19:31:37,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:31:37,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 122 [2024-02-07 19:31:37,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand