./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.2024-05-07_14-17-48.files/protection/thin002_power.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 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.2024-05-07_14-17-48.files/protection/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.witness-ghost-b44c828-m [2024-05-12 13:43:49,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 13:43:50,026 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 13:43:50,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 13:43:50,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 13:43:50,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 13:43:50,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 13:43:50,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 13:43:50,057 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 13:43:50,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 13:43:50,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 13:43:50,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 13:43:50,060 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 13:43:50,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 13:43:50,062 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 13:43:50,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 13:43:50,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 13:43:50,062 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 13:43:50,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 13:43:50,063 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 13:43:50,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 13:43:50,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 13:43:50,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 13:43:50,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 13:43:50,064 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 13:43:50,064 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 13:43:50,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 13:43:50,064 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 13:43:50,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 13:43:50,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 13:43:50,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 13:43:50,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 13:43:50,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 13:43:50,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 13:43:50,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 13:43:50,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 13:43:50,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 13:43:50,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 13:43:50,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 13:43:50,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 13:43:50,067 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 13:43:50,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 13:43:50,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 13:43:50,068 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 13:43:50,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 13:43:50,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 13:43:50,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 13:43:50,294 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 13:43:50,294 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 13:43:50,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/protection/thin002_power.opt.yml/witness.yml [2024-05-12 13:43:50,532 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 13:43:50,532 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 13:43:50,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_power.opt.i [2024-05-12 13:43:51,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 13:43:51,747 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 13:43:51,753 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_power.opt.i [2024-05-12 13:43:51,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8390be911/df134eb70f1a44e496ceee1d5328b07f/FLAGb7085d109 [2024-05-12 13:43:51,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8390be911/df134eb70f1a44e496ceee1d5328b07f [2024-05-12 13:43:51,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 13:43:51,775 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 13:43:51,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 13:43:51,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 13:43:51,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 13:43:51,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:43:50" (1/2) ... [2024-05-12 13:43:51,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c53ab83 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:43:51, skipping insertion in model container [2024-05-12 13:43:51,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:43:50" (1/2) ... [2024-05-12 13:43:51,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@49aefac4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:43:51, skipping insertion in model container [2024-05-12 13:43:51,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 01:43:51" (2/2) ... [2024-05-12 13:43:51,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c53ab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:51, skipping insertion in model container [2024-05-12 13:43:51,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 01:43:51" (2/2) ... [2024-05-12 13:43:51,783 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 13:43:51,938 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 13:43:51,939 INFO L97 edCorrectnessWitness]: Location invariant before [L883-L883] (((((((((((((((((((((((((((((((((((((((! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1))) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || __unbuffered_p3_EAX$mem_tmp == 0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$mem_tmp && z$mem_tmp <= 1) && (z$mem_tmp == 0 || z$mem_tmp == 1)))) && (! multithreaded || __unbuffered_p3_EAX$flush_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff1 == 0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || __unbuffered_p3_EAX$w_buff1_used == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff0 == 0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff0_used == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX$read_delayed_var == 0 || (((0 <= *__unbuffered_p3_EAX$read_delayed_var && *__unbuffered_p3_EAX$read_delayed_var <= 1) && __unbuffered_p3_EAX$read_delayed_var == & z) && (*__unbuffered_p3_EAX$read_delayed_var == 0 || *__unbuffered_p3_EAX$read_delayed_var == 1))))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff1 && z$w_buff1 <= 1) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff0 && z$w_buff0 <= 1) && (z$w_buff0 == 0 || z$w_buff0 == 1))) [2024-05-12 13:43:51,939 INFO L97 edCorrectnessWitness]: Location invariant before [L878-L878] (((((((((((((((((((((((((((((((((((((((! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1))) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || __unbuffered_p3_EAX$mem_tmp == 0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$mem_tmp && z$mem_tmp <= 1) && (z$mem_tmp == 0 || z$mem_tmp == 1)))) && (! multithreaded || __unbuffered_p3_EAX$flush_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff1 == 0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || __unbuffered_p3_EAX$w_buff1_used == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff0 == 0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff0_used == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX$read_delayed_var == 0 || (((0 <= *__unbuffered_p3_EAX$read_delayed_var && *__unbuffered_p3_EAX$read_delayed_var <= 1) && __unbuffered_p3_EAX$read_delayed_var == & z) && (*__unbuffered_p3_EAX$read_delayed_var == 0 || *__unbuffered_p3_EAX$read_delayed_var == 1))))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff1 && z$w_buff1 <= 1) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff0 && z$w_buff0 <= 1) && (z$w_buff0 == 0 || z$w_buff0 == 1))) [2024-05-12 13:43:51,939 INFO L97 edCorrectnessWitness]: Location invariant before [L880-L880] (((((((((((((((((((((((((((((((((((((((! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1))) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || __unbuffered_p3_EAX$mem_tmp == 0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$mem_tmp && z$mem_tmp <= 1) && (z$mem_tmp == 0 || z$mem_tmp == 1)))) && (! multithreaded || __unbuffered_p3_EAX$flush_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff1 == 0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || __unbuffered_p3_EAX$w_buff1_used == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff0 == 0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff0_used == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX$read_delayed_var == 0 || (((0 <= *__unbuffered_p3_EAX$read_delayed_var && *__unbuffered_p3_EAX$read_delayed_var <= 1) && __unbuffered_p3_EAX$read_delayed_var == & z) && (*__unbuffered_p3_EAX$read_delayed_var == 0 || *__unbuffered_p3_EAX$read_delayed_var == 1))))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff1 && z$w_buff1 <= 1) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff0 && z$w_buff0 <= 1) && (z$w_buff0 == 0 || z$w_buff0 == 1))) [2024-05-12 13:43:51,939 INFO L97 edCorrectnessWitness]: Location invariant before [L882-L882] (((((((((((((((((((((((((((((((((((((((! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1))) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || __unbuffered_p3_EAX$mem_tmp == 0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$mem_tmp && z$mem_tmp <= 1) && (z$mem_tmp == 0 || z$mem_tmp == 1)))) && (! multithreaded || __unbuffered_p3_EAX$flush_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff1 == 0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || __unbuffered_p3_EAX$w_buff1_used == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff0 == 0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$w_buff0_used == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX$read_delayed_var == 0 || (((0 <= *__unbuffered_p3_EAX$read_delayed_var && *__unbuffered_p3_EAX$read_delayed_var <= 1) && __unbuffered_p3_EAX$read_delayed_var == & z) && (*__unbuffered_p3_EAX$read_delayed_var == 0 || *__unbuffered_p3_EAX$read_delayed_var == 1))))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff1 && z$w_buff1 <= 1) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p3_EAX$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff0 && z$w_buff0 <= 1) && (z$w_buff0 == 0 || z$w_buff0 == 1))) [2024-05-12 13:43:51,940 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 13:43:51,940 INFO L106 edCorrectnessWitness]: ghost_update [L876-L876] multithreaded = 1; [2024-05-12 13:43:51,983 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 13:43:52,138 WARN L246 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] [2024-05-12 13:43:52,267 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 13:43:52,281 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-05-12 13:43:52,308 WARN L246 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 [2024-05-12 13:43:52,408 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 13:43:52,437 INFO L206 MainTranslator]: Completed translation [2024-05-12 13:43:52,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52 WrapperNode [2024-05-12 13:43:52,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 13:43:52,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 13:43:52,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 13:43:52,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 13:43:52,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,519 INFO L138 Inliner]: procedures = 177, calls = 116, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 302 [2024-05-12 13:43:52,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 13:43:52,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 13:43:52,520 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 13:43:52,520 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 13:43:52,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,534 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,551 INFO L175 MemorySlicer]: Split 54 memory accesses to 6 slices as follows [2, 48, 1, 1, 1, 1]. 89 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0, 0, 0, 0]. The 9 writes are split as follows [0, 5, 1, 1, 1, 1]. [2024-05-12 13:43:52,552 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,552 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 13:43:52,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 13:43:52,600 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 13:43:52,600 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 13:43:52,601 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (1/1) ... [2024-05-12 13:43:52,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 13:43:52,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 13:43:52,623 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) [2024-05-12 13:43:52,668 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 [2024-05-12 13:43:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 13:43:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 13:43:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 13:43:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-05-12 13:43:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-05-12 13:43:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-05-12 13:43:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 13:43:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 13:43:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 13:43:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 13:43:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-05-12 13:43:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-05-12 13:43:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-12 13:43:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 13:43:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 13:43:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 13:43:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-05-12 13:43:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-05-12 13:43:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-05-12 13:43:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-05-12 13:43:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-05-12 13:43:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-05-12 13:43:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-05-12 13:43:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-05-12 13:43:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 13:43:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 13:43:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 13:43:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 13:43:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-05-12 13:43:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-05-12 13:43:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-12 13:43:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 13:43:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 13:43:52,697 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 13:43:52,832 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 13:43:52,834 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 13:43:53,373 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 13:43:53,373 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 13:43:53,757 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 13:43:53,757 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 13:43:53,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 01:43:53 BoogieIcfgContainer [2024-05-12 13:43:53,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 13:43:53,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 13:43:53,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 13:43:53,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 13:43:53,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:43:50" (1/4) ... [2024-05-12 13:43:53,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385220c6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 01:43:53, skipping insertion in model container [2024-05-12 13:43:53,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 01:43:51" (2/4) ... [2024-05-12 13:43:53,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385220c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 01:43:53, skipping insertion in model container [2024-05-12 13:43:53,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:43:52" (3/4) ... [2024-05-12 13:43:53,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385220c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 01:43:53, skipping insertion in model container [2024-05-12 13:43:53,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 01:43:53" (4/4) ... [2024-05-12 13:43:53,765 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2024-05-12 13:43:53,779 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 13:43:53,779 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-05-12 13:43:53,780 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 13:43:53,860 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-12 13:43:53,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 58 transitions, 132 flow [2024-05-12 13:43:53,930 INFO L124 PetriNetUnfolderBase]: 1/54 cut-off events. [2024-05-12 13:43:53,930 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 13:43:53,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 54 events. 1/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2024-05-12 13:43:53,933 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 58 transitions, 132 flow [2024-05-12 13:43:53,937 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 54 transitions, 120 flow [2024-05-12 13:43:53,949 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 13:43:53,955 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;@3cee6caf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 13:43:53,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-05-12 13:43:53,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 13:43:53,961 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-05-12 13:43:53,962 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 13:43:53,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:43:53,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-05-12 13:43:53,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:43:53,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:43:53,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1074330929, now seen corresponding path program 1 times [2024-05-12 13:43:53,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:43:53,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727976642] [2024-05-12 13:43:53,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:43:53,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:43:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:43:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:43:56,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:43:56,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727976642] [2024-05-12 13:43:56,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727976642] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:43:56,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:43:56,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 13:43:56,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221132981] [2024-05-12 13:43:56,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:43:56,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 13:43:56,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:43:56,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 13:43:56,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-12 13:43:56,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-05-12 13:43:56,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-05-12 13:43:56,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:43:56,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-05-12 13:43:56,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:43:59,536 INFO L124 PetriNetUnfolderBase]: 16596/23937 cut-off events. [2024-05-12 13:43:59,537 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-05-12 13:43:59,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46311 conditions, 23937 events. 16596/23937 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 1096. Compared 159014 event pairs, 11582 based on Foata normal form. 576/23019 useless extension candidates. Maximal degree in co-relation 46295. Up to 22117 conditions per place. [2024-05-12 13:43:59,694 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 49 selfloop transitions, 10 changer transitions 0/74 dead transitions. [2024-05-12 13:43:59,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 74 transitions, 287 flow [2024-05-12 13:43:59,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-12 13:43:59,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-05-12 13:43:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-05-12 13:43:59,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5905172413793104 [2024-05-12 13:43:59,705 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 120 flow. Second operand 4 states and 137 transitions. [2024-05-12 13:43:59,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 74 transitions, 287 flow [2024-05-12 13:43:59,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 74 transitions, 280 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-05-12 13:43:59,711 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 182 flow [2024-05-12 13:43:59,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2024-05-12 13:43:59,715 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 1 predicate places. [2024-05-12 13:43:59,715 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 182 flow [2024-05-12 13:43:59,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-05-12 13:43:59,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:43:59,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:43:59,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 13:43:59,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:43:59,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:43:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash -701914690, now seen corresponding path program 1 times [2024-05-12 13:43:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:43:59,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948905619] [2024-05-12 13:43:59,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:43:59,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:43:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:44:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:44:02,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:44:02,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948905619] [2024-05-12 13:44:02,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948905619] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:44:02,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:44:02,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 13:44:02,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381755815] [2024-05-12 13:44:02,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:44:02,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-12 13:44:02,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:44:02,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-12 13:44:02,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-05-12 13:44:02,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-05-12 13:44:02,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2024-05-12 13:44:02,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:44:02,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-05-12 13:44:02,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:44:06,563 INFO L124 PetriNetUnfolderBase]: 26792/38232 cut-off events. [2024-05-12 13:44:06,563 INFO L125 PetriNetUnfolderBase]: For 5541/5541 co-relation queries the response was YES. [2024-05-12 13:44:06,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82766 conditions, 38232 events. 26792/38232 cut-off events. For 5541/5541 co-relation queries the response was YES. Maximal size of possible extension queue 1538. Compared 257241 event pairs, 14522 based on Foata normal form. 0/35896 useless extension candidates. Maximal degree in co-relation 82750. Up to 35361 conditions per place. [2024-05-12 13:44:06,782 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 61 selfloop transitions, 21 changer transitions 0/95 dead transitions. [2024-05-12 13:44:06,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 95 transitions, 456 flow [2024-05-12 13:44:06,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-12 13:44:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-05-12 13:44:06,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2024-05-12 13:44:06,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49712643678160917 [2024-05-12 13:44:06,788 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 182 flow. Second operand 6 states and 173 transitions. [2024-05-12 13:44:06,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 95 transitions, 456 flow [2024-05-12 13:44:06,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 95 transitions, 456 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-05-12 13:44:06,791 INFO L231 Difference]: Finished difference. Result has 76 places, 80 transitions, 352 flow [2024-05-12 13:44:06,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=352, PETRI_PLACES=76, PETRI_TRANSITIONS=80} [2024-05-12 13:44:06,792 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 10 predicate places. [2024-05-12 13:44:06,792 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 80 transitions, 352 flow [2024-05-12 13:44:06,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2024-05-12 13:44:06,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:44:06,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:44:06,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 13:44:06,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:44:06,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:44:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash -700040740, now seen corresponding path program 2 times [2024-05-12 13:44:06,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:44:06,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016523741] [2024-05-12 13:44:06,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:44:06,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:44:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:44:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:44:08,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:44:08,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016523741] [2024-05-12 13:44:08,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016523741] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:44:08,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:44:08,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 13:44:08,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90471671] [2024-05-12 13:44:08,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:44:08,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-12 13:44:08,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:44:08,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-12 13:44:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-12 13:44:09,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-05-12 13:44:09,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 80 transitions, 352 flow. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2024-05-12 13:44:09,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:44:09,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-05-12 13:44:09,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:44:13,545 INFO L124 PetriNetUnfolderBase]: 26793/38234 cut-off events. [2024-05-12 13:44:13,545 INFO L125 PetriNetUnfolderBase]: For 15511/15527 co-relation queries the response was YES. [2024-05-12 13:44:13,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93219 conditions, 38234 events. 26793/38234 cut-off events. For 15511/15527 co-relation queries the response was YES. Maximal size of possible extension queue 1538. Compared 257335 event pairs, 14523 based on Foata normal form. 9/35910 useless extension candidates. Maximal degree in co-relation 93197. Up to 35362 conditions per place. [2024-05-12 13:44:13,785 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 61 selfloop transitions, 23 changer transitions 0/97 dead transitions. [2024-05-12 13:44:13,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 97 transitions, 578 flow [2024-05-12 13:44:13,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 13:44:13,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 13:44:13,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-05-12 13:44:13,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5310344827586206 [2024-05-12 13:44:13,787 INFO L175 Difference]: Start difference. First operand has 76 places, 80 transitions, 352 flow. Second operand 5 states and 154 transitions. [2024-05-12 13:44:13,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 97 transitions, 578 flow [2024-05-12 13:44:13,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 97 transitions, 576 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-05-12 13:44:13,793 INFO L231 Difference]: Finished difference. Result has 81 places, 82 transitions, 417 flow [2024-05-12 13:44:13,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=417, PETRI_PLACES=81, PETRI_TRANSITIONS=82} [2024-05-12 13:44:13,794 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 15 predicate places. [2024-05-12 13:44:13,794 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 82 transitions, 417 flow [2024-05-12 13:44:13,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2024-05-12 13:44:13,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:44:13,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:44:13,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 13:44:13,797 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:44:13,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:44:13,797 INFO L85 PathProgramCache]: Analyzing trace with hash -700037020, now seen corresponding path program 3 times [2024-05-12 13:44:13,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:44:13,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245847286] [2024-05-12 13:44:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:44:13,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:44:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:44:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:44:15,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:44:15,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245847286] [2024-05-12 13:44:15,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245847286] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:44:15,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:44:15,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 13:44:15,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46014043] [2024-05-12 13:44:15,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:44:15,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-12 13:44:15,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:44:15,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-12 13:44:15,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-05-12 13:44:15,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-05-12 13:44:15,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 82 transitions, 417 flow. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2024-05-12 13:44:15,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:44:15,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-05-12 13:44:15,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:44:20,335 INFO L124 PetriNetUnfolderBase]: 26792/38231 cut-off events. [2024-05-12 13:44:20,335 INFO L125 PetriNetUnfolderBase]: For 15709/15740 co-relation queries the response was YES. [2024-05-12 13:44:20,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93357 conditions, 38231 events. 26792/38231 cut-off events. For 15709/15740 co-relation queries the response was YES. Maximal size of possible extension queue 1538. Compared 257199 event pairs, 14523 based on Foata normal form. 14/35915 useless extension candidates. Maximal degree in co-relation 93332. Up to 35361 conditions per place. [2024-05-12 13:44:20,555 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 76 selfloop transitions, 20 changer transitions 0/109 dead transitions. [2024-05-12 13:44:20,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 109 transitions, 685 flow [2024-05-12 13:44:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 13:44:20,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 13:44:20,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 169 transitions. [2024-05-12 13:44:20,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5827586206896552 [2024-05-12 13:44:20,557 INFO L175 Difference]: Start difference. First operand has 81 places, 82 transitions, 417 flow. Second operand 5 states and 169 transitions. [2024-05-12 13:44:20,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 109 transitions, 685 flow [2024-05-12 13:44:20,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 109 transitions, 644 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-05-12 13:44:20,563 INFO L231 Difference]: Finished difference. Result has 84 places, 84 transitions, 444 flow [2024-05-12 13:44:20,564 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=444, PETRI_PLACES=84, PETRI_TRANSITIONS=84} [2024-05-12 13:44:20,565 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 18 predicate places. [2024-05-12 13:44:20,565 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 84 transitions, 444 flow [2024-05-12 13:44:20,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2024-05-12 13:44:20,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:44:20,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:44:20,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 13:44:20,566 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:44:20,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:44:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash -702636941, now seen corresponding path program 1 times [2024-05-12 13:44:20,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:44:20,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898444061] [2024-05-12 13:44:20,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:44:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:44:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:44:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:44:22,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:44:22,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898444061] [2024-05-12 13:44:22,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898444061] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:44:22,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:44:22,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 13:44:22,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610028357] [2024-05-12 13:44:22,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:44:22,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-12 13:44:22,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:44:22,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-12 13:44:22,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-12 13:44:22,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-05-12 13:44:22,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 84 transitions, 444 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-05-12 13:44:22,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:44:22,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-05-12 13:44:22,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:44:27,219 INFO L124 PetriNetUnfolderBase]: 23927/35374 cut-off events. [2024-05-12 13:44:27,220 INFO L125 PetriNetUnfolderBase]: For 13526/13555 co-relation queries the response was YES. [2024-05-12 13:44:27,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84493 conditions, 35374 events. 23927/35374 cut-off events. For 13526/13555 co-relation queries the response was YES. Maximal size of possible extension queue 1477. Compared 250748 event pairs, 14159 based on Foata normal form. 10/32881 useless extension candidates. Maximal degree in co-relation 84467. Up to 32083 conditions per place. [2024-05-12 13:44:27,465 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 61 selfloop transitions, 20 changer transitions 0/99 dead transitions. [2024-05-12 13:44:27,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 99 transitions, 656 flow [2024-05-12 13:44:27,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 13:44:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 13:44:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-05-12 13:44:27,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5379310344827586 [2024-05-12 13:44:27,466 INFO L175 Difference]: Start difference. First operand has 84 places, 84 transitions, 444 flow. Second operand 5 states and 156 transitions. [2024-05-12 13:44:27,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 99 transitions, 656 flow [2024-05-12 13:44:27,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 99 transitions, 621 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-05-12 13:44:27,471 INFO L231 Difference]: Finished difference. Result has 88 places, 89 transitions, 500 flow [2024-05-12 13:44:27,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=500, PETRI_PLACES=88, PETRI_TRANSITIONS=89} [2024-05-12 13:44:27,471 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 22 predicate places. [2024-05-12 13:44:27,472 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 89 transitions, 500 flow [2024-05-12 13:44:27,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-05-12 13:44:27,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:44:27,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:44:27,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-12 13:44:27,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:44:27,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:44:27,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1570771099, now seen corresponding path program 1 times [2024-05-12 13:44:27,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:44:27,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139338269] [2024-05-12 13:44:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:44:27,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:44:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:44:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:44:29,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:44:29,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139338269] [2024-05-12 13:44:29,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139338269] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:44:29,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:44:29,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-12 13:44:29,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635586403] [2024-05-12 13:44:29,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:44:29,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-12 13:44:29,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:44:29,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-12 13:44:29,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-05-12 13:44:30,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-05-12 13:44:30,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 500 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-05-12 13:44:30,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:44:30,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-05-12 13:44:30,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand