./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe016_power.oepc.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.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_power.oepc.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe016_power.oepc.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:30:14,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:30:14,881 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:30:14,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:30:14,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:30:14,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:30:14,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:30:14,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:30:14,901 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:30:14,902 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:30:14,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:30:14,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:30:14,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:30:14,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:30:14,903 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:30:14,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:30:14,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:30:14,904 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:30:14,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:30:14,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:30:14,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:30:14,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:30:14,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:30:14,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:30:14,906 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:30:14,906 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:30:14,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:30:14,907 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:30:14,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:30:14,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:30:14,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:30:14,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:30:14,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:30:14,908 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:30:14,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:30:14,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:30:14,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:30:14,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:30:14,910 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:30:14,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:30:14,910 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:30:14,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:30:14,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:30:14,911 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:30:15,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:30:15,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:30:15,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:30:15,165 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:30:15,166 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:30:15,167 INFO L431 ainManager$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.oepc.yml/witness.yml [2024-02-07 19:30:15,279 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:30:15,279 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:30:15,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_power.oepc.i [2024-02-07 19:30:16,327 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:30:16,563 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:30:16,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_power.oepc.i [2024-02-07 19:30:16,589 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464c2b144/ebfd58f9dfc04edca274dc289de4cb5e/FLAGfb9b6a97d [2024-02-07 19:30:16,600 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464c2b144/ebfd58f9dfc04edca274dc289de4cb5e [2024-02-07 19:30:16,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:30:16,602 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:30:16,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:30:16,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:30:16,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:30:16,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:30:15" (1/2) ... [2024-02-07 19:30:16,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea3d040 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:30:16, skipping insertion in model container [2024-02-07 19:30:16,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:30:15" (1/2) ... [2024-02-07 19:30:16,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4b115ede and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:30:16, skipping insertion in model container [2024-02-07 19:30:16,611 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:30:16" (2/2) ... [2024-02-07 19:30:16,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea3d040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:16, skipping insertion in model container [2024-02-07 19:30:16,612 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:30:16" (2/2) ... [2024-02-07 19:30:16,612 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:30:16,720 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:30:16,721 INFO L76 edCorrectnessWitness]: Location invariant before [L820-L820] 0 <= __unbuffered_cnt [2024-02-07 19:30:16,722 INFO L76 edCorrectnessWitness]: Location invariant before [L832-L832] y$w_buff1_used == (_Bool)0 [2024-02-07 19:30:16,722 INFO L76 edCorrectnessWitness]: Location invariant before [L837-L837] 0 <= __unbuffered_cnt [2024-02-07 19:30:16,722 INFO L76 edCorrectnessWitness]: Location invariant before [L862-L862] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:30:16,722 INFO L76 edCorrectnessWitness]: Location invariant before [L838-L838] 1 <= __unbuffered_cnt [2024-02-07 19:30:16,723 INFO L76 edCorrectnessWitness]: Location invariant before [L889-L889] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 19:30:16,723 INFO L76 edCorrectnessWitness]: Location invariant before [L875-L875] ((((0 <= y) && (y <= 2)) && (y <= 127)) && (y$flush_delayed == (_Bool)0 || y$flush_delayed == (_Bool)1)) && ((y == 0 || y == 1) || y == 2) [2024-02-07 19:30:16,723 INFO L76 edCorrectnessWitness]: Location invariant before [L873-L873] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 19:30:16,723 INFO L76 edCorrectnessWitness]: Location invariant before [L828-L828] y == 2 [2024-02-07 19:30:16,723 INFO L76 edCorrectnessWitness]: Location invariant before [L781-L781] y$flush_delayed == (_Bool)0 [2024-02-07 19:30:16,723 INFO L76 edCorrectnessWitness]: Location invariant before [L777-L777] __unbuffered_p0_EAX$read_delayed == (_Bool)1 [2024-02-07 19:30:16,724 INFO L76 edCorrectnessWitness]: Location invariant before [L796-L796] x == 2 [2024-02-07 19:30:16,724 INFO L76 edCorrectnessWitness]: Location invariant before [L887-L887] (((0 <= y) && (y <= 2)) && (y <= 127)) && ((y == 0 || y == 1) || y == 2) [2024-02-07 19:30:16,724 INFO L76 edCorrectnessWitness]: Location invariant before [L807-L807] (((0 <= x) && (x <= 2)) && (x <= 127)) && ((x == 0 || x == 1) || x == 2) [2024-02-07 19:30:16,724 INFO L76 edCorrectnessWitness]: Location invariant before [L789-L789] 1 <= __unbuffered_cnt [2024-02-07 19:30:16,724 INFO L76 edCorrectnessWitness]: Location invariant before [L870-L870] y$r_buff1_thd0 == (_Bool)0 [2024-02-07 19:30:16,724 INFO L76 edCorrectnessWitness]: Location invariant before [L19-L19] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 19:30:16,724 INFO L76 edCorrectnessWitness]: Location invariant before [L767-L767] ((((0 <= y) && (y <= 2)) && (y <= 127)) && (y$flush_delayed == (_Bool)0 || y$flush_delayed == (_Bool)1)) && ((y == 0 || y == 1) || y == 2) [2024-02-07 19:30:16,724 INFO L76 edCorrectnessWitness]: Location invariant before [L869-L869] y$w_buff1_used == (_Bool)0 [2024-02-07 19:30:16,725 INFO L76 edCorrectnessWitness]: Location invariant before [L811-L811] y == 1 [2024-02-07 19:30:16,725 INFO L76 edCorrectnessWitness]: Location invariant before [L853-L853] ((((0LL - (long long )y$w_buff0_used) + (long long )y$w_buff1_used >= 0LL) && ((long long )y$w_buff0_used + (long long )y$w_buff1_used >= 0LL)) && ((0LL - (long long )y$w_buff0_used) - (long long )y$w_buff1_used >= 0LL)) && ((long long )y$w_buff0_used - (long long )y$w_buff1_used >= 0LL) [2024-02-07 19:30:16,725 INFO L76 edCorrectnessWitness]: Location invariant before [L815-L815] y$w_buff1_used == (_Bool)0 [2024-02-07 19:30:16,726 INFO L76 edCorrectnessWitness]: Location invariant before [L778-L778] ((((((((0 <= y) && (0 <= *__unbuffered_p0_EAX$read_delayed_var)) && (y <= 2)) && (y <= 127)) && (*__unbuffered_p0_EAX$read_delayed_var <= 2)) && (*__unbuffered_p0_EAX$read_delayed_var <= 127)) && (__unbuffered_p0_EAX$read_delayed_var == & y)) && ((y == 0 || y == 1) || y == 2)) && ((*__unbuffered_p0_EAX$read_delayed_var == 0 || *__unbuffered_p0_EAX$read_delayed_var == 1) || *__unbuffered_p0_EAX$read_delayed_var == 2) [2024-02-07 19:30:16,726 INFO L76 edCorrectnessWitness]: Location invariant before [L874-L874] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 19:30:16,726 INFO L76 edCorrectnessWitness]: Location invariant before [L863-L863] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:30:16,726 INFO L76 edCorrectnessWitness]: Location invariant before [L768-L768] (((0 <= y$mem_tmp) && (y$mem_tmp <= 2)) && (y$mem_tmp <= 127)) && ((y$mem_tmp == 0 || y$mem_tmp == 1) || y$mem_tmp == 2) [2024-02-07 19:30:16,726 INFO L76 edCorrectnessWitness]: Location invariant before [L817-L817] y$w_buff1_used == (_Bool)0 [2024-02-07 19:30:16,726 INFO L76 edCorrectnessWitness]: Location invariant before [L765-L765] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 19:30:16,726 INFO L76 edCorrectnessWitness]: Location invariant before [L818-L818] y$r_buff1_thd3 == (_Bool)0 [2024-02-07 19:30:16,726 INFO L76 edCorrectnessWitness]: Location invariant before [L766-L766] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 19:30:16,727 INFO L76 edCorrectnessWitness]: Location invariant before [L883-L883] y$r_buff1_thd0 == (_Bool)0 [2024-02-07 19:30:16,727 INFO L76 edCorrectnessWitness]: Location invariant before [L784-L784] x == 1 [2024-02-07 19:30:16,727 INFO L76 edCorrectnessWitness]: Location invariant before [L867-L867] y$w_buff1_used == (_Bool)0 [2024-02-07 19:30:16,727 INFO L76 edCorrectnessWitness]: Location invariant before [L821-L821] 1 <= __unbuffered_cnt [2024-02-07 19:30:16,727 INFO L76 edCorrectnessWitness]: Location invariant before [L885-L885] (((((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 19:30:16,727 INFO L76 edCorrectnessWitness]: Location invariant before [L780-L780] (((0 <= y) && (y <= 2)) && (y <= 127)) && ((y == 0 || y == 1) || y == 2) [2024-02-07 19:30:16,728 INFO L76 edCorrectnessWitness]: Location invariant before [L834-L834] y$w_buff1_used == (_Bool)0 [2024-02-07 19:30:16,728 INFO L76 edCorrectnessWitness]: Location invariant before [L808-L808] (((0 <= __unbuffered_p2_EAX) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2) [2024-02-07 19:30:16,729 INFO L76 edCorrectnessWitness]: Location invariant before [L788-L788] 0 <= __unbuffered_cnt [2024-02-07 19:30:16,729 INFO L76 edCorrectnessWitness]: Location invariant before [L888-L888] y$flush_delayed == (_Bool)0 [2024-02-07 19:30:16,729 INFO L76 edCorrectnessWitness]: Location invariant before [L801-L801] 1 <= __unbuffered_cnt [2024-02-07 19:30:16,729 INFO L76 edCorrectnessWitness]: Location invariant before [L835-L835] y$r_buff1_thd4 == (_Bool)0 [2024-02-07 19:30:16,730 INFO L76 edCorrectnessWitness]: Location invariant before [L800-L800] 0 <= __unbuffered_cnt [2024-02-07 19:30:16,730 INFO L76 edCorrectnessWitness]: Location invariant before [L776-L776] y$r_buff1_thd1 == (_Bool)0 [2024-02-07 19:30:16,730 INFO L76 edCorrectnessWitness]: Location invariant before [L861-L861] 0 <= __unbuffered_cnt [2024-02-07 19:30:16,772 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:30:16,902 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.oepc.i[995,1008] [2024-02-07 19:30:17,050 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:30:17,059 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 19:30:17,096 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.oepc.i[995,1008] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:30:17,187 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:30:17,227 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:30:17,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17 WrapperNode [2024-02-07 19:30:17,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:30:17,228 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:30:17,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:30:17,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:30:17,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,283 INFO L138 Inliner]: procedures = 177, calls = 132, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 260 [2024-02-07 19:30:17,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:30:17,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:30:17,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:30:17,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:30:17,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,320 INFO L175 MemorySlicer]: Split 75 memory accesses to 6 slices as follows [2, 69, 1, 1, 1, 1]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0, 0, 0, 0]. The 13 writes are split as follows [0, 9, 1, 1, 1, 1]. [2024-02-07 19:30:17,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:30:17,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:30:17,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:30:17,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:30:17,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (1/1) ... [2024-02-07 19:30:17,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:30:17,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:30:17,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 19:30:17,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 19:30:17,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:30:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:30:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:30:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 19:30:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 19:30:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-07 19:30:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:30:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:30:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:30:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:30:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 19:30:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-07 19:30:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:30:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:30:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:30:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:30:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 19:30:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 19:30:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 19:30:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 19:30:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 19:30:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 19:30:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-02-07 19:30:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-02-07 19:30:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:30:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:30:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:30:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:30:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 19:30:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-07 19:30:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:30:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:30:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:30:17,442 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:30:17,675 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:30:17,677 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:30:18,196 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:30:18,197 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:30:18,730 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:30:18,731 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:30:18,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:30:18 BoogieIcfgContainer [2024-02-07 19:30:18,732 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:30:18,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:30:18,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:30:18,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:30:18,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:30:15" (1/4) ... [2024-02-07 19:30:18,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ae70d2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:30:18, skipping insertion in model container [2024-02-07 19:30:18,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:30:16" (2/4) ... [2024-02-07 19:30:18,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ae70d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:30:18, skipping insertion in model container [2024-02-07 19:30:18,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:30:17" (3/4) ... [2024-02-07 19:30:18,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ae70d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:30:18, skipping insertion in model container [2024-02-07 19:30:18,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:30:18" (4/4) ... [2024-02-07 19:30:18,742 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_power.oepc.i [2024-02-07 19:30:18,757 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:30:18,757 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2024-02-07 19:30:18,758 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:30:18,894 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 19:30:18,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 94 transitions, 204 flow [2024-02-07 19:30:18,980 INFO L124 PetriNetUnfolderBase]: 1/90 cut-off events. [2024-02-07 19:30:18,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:30:18,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 90 events. 1/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 329 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2024-02-07 19:30:18,985 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 94 transitions, 204 flow [2024-02-07 19:30:18,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 90 transitions, 192 flow [2024-02-07 19:30:19,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:30:19,008 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;@4a308e8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:30:19,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-02-07 19:30:19,010 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:30:19,010 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-07 19:30:19,010 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:30:19,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:30:19,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-07 19:30:19,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-07 19:30:19,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:30:19,016 INFO L85 PathProgramCache]: Analyzing trace with hash 39868, now seen corresponding path program 1 times [2024-02-07 19:30:19,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:30:19,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105600350] [2024-02-07 19:30:19,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:30:19,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:30:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:30:19,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:30:19,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:30:19,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105600350] [2024-02-07 19:30:19,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105600350] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:30:19,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:30:19,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:30:19,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043072756] [2024-02-07 19:30:19,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:30:19,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:30:19,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:30:19,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:30:19,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:30:19,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 94 [2024-02-07 19:30:19,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 90 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:30:19,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:30:19,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 94 [2024-02-07 19:30:19,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:30:44,539 INFO L124 PetriNetUnfolderBase]: 162194/227441 cut-off events. [2024-02-07 19:30:44,540 INFO L125 PetriNetUnfolderBase]: For 372/372 co-relation queries the response was YES. [2024-02-07 19:30:45,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438935 conditions, 227441 events. 162194/227441 cut-off events. For 372/372 co-relation queries the response was YES. Maximal size of possible extension queue 9610. Compared 1860837 event pairs, 162194 based on Foata normal form. 2700/138129 useless extension candidates. Maximal degree in co-relation 438921. Up to 210466 conditions per place. [2024-02-07 19:30:46,118 INFO L140 encePairwiseOnDemand]: 68/94 looper letters, 49 selfloop transitions, 1 changer transitions 0/65 dead transitions. [2024-02-07 19:30:46,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 65 transitions, 242 flow [2024-02-07 19:30:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:30:46,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:30:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 132 transitions. [2024-02-07 19:30:46,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46808510638297873 [2024-02-07 19:30:46,130 INFO L175 Difference]: Start difference. First operand has 102 places, 90 transitions, 192 flow. Second operand 3 states and 132 transitions. [2024-02-07 19:30:46,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 65 transitions, 242 flow [2024-02-07 19:30:46,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 65 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-07 19:30:46,172 INFO L231 Difference]: Finished difference. Result has 76 places, 65 transitions, 140 flow [2024-02-07 19:30:46,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2024-02-07 19:30:46,176 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -26 predicate places. [2024-02-07 19:30:46,176 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 140 flow [2024-02-07 19:30:46,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:30:46,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:30:46,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 19:30:46,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:30:46,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-07 19:30:46,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:30:46,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1189052182, now seen corresponding path program 1 times [2024-02-07 19:30:46,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:30:46,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984435961] [2024-02-07 19:30:46,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:30:46,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:30:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:30:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:30:46,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:30:46,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984435961] [2024-02-07 19:30:46,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984435961] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:30:46,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:30:46,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:30:46,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529697165] [2024-02-07 19:30:46,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:30:46,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:30:46,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:30:46,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:30:46,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:30:46,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 94 [2024-02-07 19:30:46,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:30:46,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:30:46,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 94 [2024-02-07 19:30:46,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand