./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe016_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/safe016_power.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_power.opt.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe016_power.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-958ec4d-m [2024-02-07 14:52:05,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:52:05,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:52:05,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:52:05,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:52:05,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:52:05,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:52:05,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:52:05,258 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:52:05,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:52:05,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:52:05,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:52:05,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:52:05,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:52:05,264 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:52:05,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:52:05,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:52:05,264 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:52:05,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:52:05,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:52:05,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:52:05,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:52:05,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:52:05,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:52:05,267 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:52:05,267 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:52:05,267 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:52:05,268 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:52:05,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:52:05,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:52:05,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:52:05,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:52:05,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:52:05,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:52:05,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:52:05,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:52:05,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:52:05,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:52:05,271 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:52:05,271 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:52:05,271 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:52:05,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:52:05,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:52:05,272 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:52:05,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:52:05,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:52:05,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:52:05,551 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:52:05,552 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:52:05,553 INFO L431 ainManager$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/safe016_power.opt.yml/witness.yml [2024-02-07 14:52:05,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:52:05,652 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:52:05,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_power.opt.i [2024-02-07 14:52:06,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:52:06,930 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:52:06,930 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_power.opt.i [2024-02-07 14:52:06,942 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/993a49f3b/7ac41dcd132743429ad6246ba7b5370b/FLAGd34c250fb [2024-02-07 14:52:06,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/993a49f3b/7ac41dcd132743429ad6246ba7b5370b [2024-02-07 14:52:06,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:52:06,956 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:52:06,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:52:06,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:52:06,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:52:06,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:52:05" (1/2) ... [2024-02-07 14:52:06,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81cf415 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:52:06, skipping insertion in model container [2024-02-07 14:52:06,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:52:05" (1/2) ... [2024-02-07 14:52:06,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@780ebe8b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:52:06, skipping insertion in model container [2024-02-07 14:52:06,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:52:06" (2/2) ... [2024-02-07 14:52:06,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81cf415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:06, skipping insertion in model container [2024-02-07 14:52:06,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:52:06" (2/2) ... [2024-02-07 14:52:06,967 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:52:07,120 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:52:07,122 INFO L76 edCorrectnessWitness]: Location invariant before [L791-L791] x$r_buff1_thd2 == (_Bool)0 [2024-02-07 14:52:07,122 INFO L76 edCorrectnessWitness]: Location invariant before [L870-L870] 0 <= __unbuffered_cnt [2024-02-07 14:52:07,122 INFO L76 edCorrectnessWitness]: Location invariant before [L773-L773] x$w_buff1_used == (_Bool)0 [2024-02-07 14:52:07,122 INFO L76 edCorrectnessWitness]: Location invariant before [L843-L843] x$w_buff1_used == (_Bool)0 [2024-02-07 14:52:07,123 INFO L76 edCorrectnessWitness]: Location invariant before [L767-L767] x == 1 [2024-02-07 14:52:07,123 INFO L76 edCorrectnessWitness]: Location invariant before [L763-L763] (((0 <= y) && (y <= 2)) && (y <= 127)) && ((y == 0 || y == 1) || y == 2) [2024-02-07 14:52:07,124 INFO L76 edCorrectnessWitness]: Location invariant before [L884-L884] ((((0 <= x) && (x <= 2)) && (x <= 127)) && (x$flush_delayed == (_Bool)0 || x$flush_delayed == (_Bool)1)) && ((x == 0 || x == 1) || x == 2) [2024-02-07 14:52:07,124 INFO L76 edCorrectnessWitness]: Location invariant before [L883-L883] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 14:52:07,124 INFO L76 edCorrectnessWitness]: Location invariant before [L817-L817] x$flush_delayed == (_Bool)0 [2024-02-07 14:52:07,124 INFO L76 edCorrectnessWitness]: Location invariant before [L827-L827] x$r_buff1_thd3 == (_Bool)0 [2024-02-07 14:52:07,124 INFO L76 edCorrectnessWitness]: Location invariant before [L862-L862] ((((0LL - (long long )x$w_buff0_used) + (long long )x$w_buff1_used >= 0LL) && ((long long )x$w_buff0_used + (long long )x$w_buff1_used >= 0LL)) && ((0LL - (long long )x$w_buff0_used) - (long long )x$w_buff1_used >= 0LL)) && ((long long )x$w_buff0_used - (long long )x$w_buff1_used >= 0LL) [2024-02-07 14:52:07,124 INFO L76 edCorrectnessWitness]: Location invariant before [L837-L837] y == 2 [2024-02-07 14:52:07,124 INFO L76 edCorrectnessWitness]: Location invariant before [L777-L777] 1 <= __unbuffered_cnt [2024-02-07 14:52:07,125 INFO L76 edCorrectnessWitness]: Location invariant before [L812-L812] x$r_buff1_thd3 == (_Bool)0 [2024-02-07 14:52:07,125 INFO L76 edCorrectnessWitness]: Location invariant before [L801-L801] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 14:52:07,125 INFO L76 edCorrectnessWitness]: Location invariant before [L894-L894] (((((0 <= __unbuffered_p2_EAX) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x == 2)) && ((y == 2 && (__unbuffered_p0_EAX == 2 || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 2) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)))) || ((((((0 <= __unbuffered_p0_EAX && 0 <= y) && __unbuffered_p0_EAX <= 2) && y <= 2) && y <= 127) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((y == 0 || y == 1) || y == 2)))) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2) [2024-02-07 14:52:07,125 INFO L76 edCorrectnessWitness]: Location invariant before [L826-L826] x$w_buff1_used == (_Bool)0 [2024-02-07 14:52:07,125 INFO L76 edCorrectnessWitness]: Location invariant before [L878-L878] x$w_buff1_used == (_Bool)0 [2024-02-07 14:52:07,125 INFO L76 edCorrectnessWitness]: Location invariant before [L892-L892] x$r_buff1_thd0 == (_Bool)0 [2024-02-07 14:52:07,125 INFO L76 edCorrectnessWitness]: Location invariant before [L876-L876] x$w_buff1_used == (_Bool)0 [2024-02-07 14:52:07,125 INFO L76 edCorrectnessWitness]: Location invariant before [L803-L803] ((((0 <= x) && (x <= 2)) && (x <= 127)) && (x$flush_delayed == (_Bool)0 || x$flush_delayed == (_Bool)1)) && ((x == 0 || x == 1) || x == 2) [2024-02-07 14:52:07,126 INFO L76 edCorrectnessWitness]: Location invariant before [L820-L820] y == 1 [2024-02-07 14:52:07,126 INFO L76 edCorrectnessWitness]: Location invariant before [L872-L872] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 14:52:07,126 INFO L76 edCorrectnessWitness]: Location invariant before [L804-L804] (((0 <= x$mem_tmp) && (x$mem_tmp <= 2)) && (x$mem_tmp <= 127)) && ((x$mem_tmp == 0 || x$mem_tmp == 1) || x$mem_tmp == 2) [2024-02-07 14:52:07,126 INFO L76 edCorrectnessWitness]: Location invariant before [L897-L897] x$flush_delayed == (_Bool)0 [2024-02-07 14:52:07,127 INFO L76 edCorrectnessWitness]: Location invariant before [L814-L814] ((((((((0 <= x) && (0 <= *__unbuffered_p2_EAX$read_delayed_var)) && (x <= 2)) && (x <= 127)) && (*__unbuffered_p2_EAX$read_delayed_var <= 2)) && (*__unbuffered_p2_EAX$read_delayed_var <= 127)) && (__unbuffered_p2_EAX$read_delayed_var == & x)) && ((x == 0 || x == 1) || x == 2)) && ((*__unbuffered_p2_EAX$read_delayed_var == 0 || *__unbuffered_p2_EAX$read_delayed_var == 1) || *__unbuffered_p2_EAX$read_delayed_var == 2) [2024-02-07 14:52:07,127 INFO L76 edCorrectnessWitness]: Location invariant before [L776-L776] 0 <= __unbuffered_cnt [2024-02-07 14:52:07,127 INFO L76 edCorrectnessWitness]: Location invariant before [L841-L841] x$w_buff1_used == (_Bool)0 [2024-02-07 14:52:07,127 INFO L76 edCorrectnessWitness]: Location invariant before [L816-L816] (((0 <= x) && (x <= 2)) && (x <= 127)) && ((x == 0 || x == 1) || x == 2) [2024-02-07 14:52:07,127 INFO L76 edCorrectnessWitness]: Location invariant before [L764-L764] (((0 <= __unbuffered_p0_EAX) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p0_EAX <= 127)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2) [2024-02-07 14:52:07,127 INFO L76 edCorrectnessWitness]: Location invariant before [L784-L784] x == 2 [2024-02-07 14:52:07,127 INFO L76 edCorrectnessWitness]: Location invariant before [L879-L879] x$r_buff1_thd0 == (_Bool)0 [2024-02-07 14:52:07,128 INFO L76 edCorrectnessWitness]: Location invariant before [L794-L794] 1 <= __unbuffered_cnt [2024-02-07 14:52:07,128 INFO L76 edCorrectnessWitness]: Location invariant before [L802-L802] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 14:52:07,128 INFO L76 edCorrectnessWitness]: Location invariant before [L824-L824] x$w_buff1_used == (_Bool)0 [2024-02-07 14:52:07,128 INFO L76 edCorrectnessWitness]: Location invariant before [L844-L844] x$r_buff1_thd4 == (_Bool)0 [2024-02-07 14:52:07,128 INFO L76 edCorrectnessWitness]: Location invariant before [L829-L829] 0 <= __unbuffered_cnt [2024-02-07 14:52:07,128 INFO L76 edCorrectnessWitness]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 14:52:07,129 INFO L76 edCorrectnessWitness]: Location invariant before [L896-L896] (((0 <= x) && (x <= 2)) && (x <= 127)) && ((x == 0 || x == 1) || x == 2) [2024-02-07 14:52:07,129 INFO L76 edCorrectnessWitness]: Location invariant before [L790-L790] x$w_buff1_used == (_Bool)0 [2024-02-07 14:52:07,130 INFO L76 edCorrectnessWitness]: Location invariant before [L871-L871] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 14:52:07,130 INFO L76 edCorrectnessWitness]: Location invariant before [L882-L882] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 14:52:07,130 INFO L76 edCorrectnessWitness]: Location invariant before [L847-L847] 1 <= __unbuffered_cnt [2024-02-07 14:52:07,130 INFO L76 edCorrectnessWitness]: Location invariant before [L788-L788] x$w_buff1_used == (_Bool)0 [2024-02-07 14:52:07,130 INFO L76 edCorrectnessWitness]: Location invariant before [L774-L774] x$r_buff1_thd1 == (_Bool)0 [2024-02-07 14:52:07,131 INFO L76 edCorrectnessWitness]: Location invariant before [L771-L771] x$w_buff1_used == (_Bool)0 [2024-02-07 14:52:07,131 INFO L76 edCorrectnessWitness]: Location invariant before [L846-L846] 0 <= __unbuffered_cnt [2024-02-07 14:52:07,131 INFO L76 edCorrectnessWitness]: Location invariant before [L830-L830] 1 <= __unbuffered_cnt [2024-02-07 14:52:07,131 INFO L76 edCorrectnessWitness]: Location invariant before [L793-L793] 0 <= __unbuffered_cnt [2024-02-07 14:52:07,131 INFO L76 edCorrectnessWitness]: Location invariant before [L898-L898] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 14:52:07,131 INFO L76 edCorrectnessWitness]: Location invariant before [L813-L813] __unbuffered_p2_EAX$read_delayed == (_Bool)1 [2024-02-07 14:52:07,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:52:07,317 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/safe016_power.opt.i[951,964] [2024-02-07 14:52:07,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:52:07,533 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 14:52:07,566 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/safe016_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 [2024-02-07 14:52:07,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:52:07,669 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:52:07,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07 WrapperNode [2024-02-07 14:52:07,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:52:07,670 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:52:07,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:52:07,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:52:07,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,724 INFO L138 Inliner]: procedures = 177, calls = 130, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 238 [2024-02-07 14:52:07,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:52:07,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:52:07,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:52:07,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:52:07,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,739 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,768 INFO L175 MemorySlicer]: Split 73 memory accesses to 6 slices as follows [67, 2, 1, 1, 1, 1]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [1, 2, 0, 0, 0, 0]. The 15 writes are split as follows [11, 0, 1, 1, 1, 1]. [2024-02-07 14:52:07,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:52:07,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:52:07,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:52:07,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:52:07,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (1/1) ... [2024-02-07 14:52:07,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:52:07,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:52:07,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 14:52:07,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 14:52:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 14:52:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 14:52:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 14:52:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 14:52:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 14:52:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-07 14:52:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:52:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:52:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:52:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:52:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 14:52:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-07 14:52:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 14:52:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:52:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:52:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:52:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 14:52:07,878 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 14:52:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 14:52:07,878 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 14:52:07,879 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 14:52:07,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 14:52:07,879 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-02-07 14:52:07,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-02-07 14:52:07,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:52:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:52:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:52:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:52:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 14:52:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-07 14:52:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 14:52:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:52:07,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:52:07,883 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:52:08,049 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:52:08,051 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:52:08,710 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:52:08,710 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:52:09,241 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:52:09,242 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:52:09,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:52:09 BoogieIcfgContainer [2024-02-07 14:52:09,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:52:09,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:52:09,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:52:09,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:52:09,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:52:05" (1/4) ... [2024-02-07 14:52:09,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab541f3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:52:09, skipping insertion in model container [2024-02-07 14:52:09,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:52:06" (2/4) ... [2024-02-07 14:52:09,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab541f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:52:09, skipping insertion in model container [2024-02-07 14:52:09,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:07" (3/4) ... [2024-02-07 14:52:09,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab541f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:52:09, skipping insertion in model container [2024-02-07 14:52:09,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:52:09" (4/4) ... [2024-02-07 14:52:09,252 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_power.opt.i [2024-02-07 14:52:09,268 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:52:09,268 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2024-02-07 14:52:09,268 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:52:09,436 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:52:09,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 100 transitions, 216 flow [2024-02-07 14:52:09,526 INFO L124 PetriNetUnfolderBase]: 1/96 cut-off events. [2024-02-07 14:52:09,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:52:09,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 96 events. 1/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 378 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2024-02-07 14:52:09,532 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 100 transitions, 216 flow [2024-02-07 14:52:09,536 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 96 transitions, 204 flow [2024-02-07 14:52:09,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:52:09,548 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;@1383c68d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:52:09,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-02-07 14:52:09,553 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:52:09,554 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-07 14:52:09,554 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:52:09,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:52:09,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-07 14:52:09,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 88 more)] === [2024-02-07 14:52:09,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:52:09,559 INFO L85 PathProgramCache]: Analyzing trace with hash 40856, now seen corresponding path program 1 times [2024-02-07 14:52:09,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:52:09,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826213769] [2024-02-07 14:52:09,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:52:09,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:52:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:52:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:52:09,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:52:09,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826213769] [2024-02-07 14:52:09,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826213769] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:52:09,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:52:09,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:52:09,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658534968] [2024-02-07 14:52:09,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:52:09,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:52:09,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:52:09,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:52:09,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:52:09,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 100 [2024-02-07 14:52:09,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 96 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:52:09,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:52:09,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 100 [2024-02-07 14:52:09,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand