./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i ./goblint.2024-06-19_11-23-25.files/protection/mix051_power.oepc_power.opt_pso.oepc_rmo.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-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 18:36:51,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:36:51,200 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:36:51,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:36:51,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:36:51,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:36:51,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:36:51,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:36:51,244 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:36:51,248 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:36:51,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:36:51,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:36:51,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:36:51,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:36:51,251 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:36:51,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:36:51,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:36:51,252 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:36:51,252 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:36:51,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:36:51,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:36:51,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:36:51,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:36:51,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:36:51,254 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:36:51,254 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:36:51,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:36:51,255 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:36:51,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:36:51,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:36:51,257 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:36:51,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:36:51,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:36:51,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:36:51,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:36:51,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:36:51,258 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:36:51,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:36:51,259 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:36:51,259 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:36:51,259 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:36:51,259 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:36:51,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:36:51,260 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:36:51,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:36:51,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:36:51,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:36:51,545 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:36:51,545 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:36:51,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2024-06-27 18:36:52,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:36:52,974 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:36:52,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2024-06-27 18:36:52,999 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ef99726f/b303cd61f07d4dfa9c6b40475aaed563/FLAG4a058ec6f [2024-06-27 18:36:53,012 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ef99726f/b303cd61f07d4dfa9c6b40475aaed563 [2024-06-27 18:36:53,015 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:36:53,015 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:36:53,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.yml/witness.yml [2024-06-27 18:36:53,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:36:53,231 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:36:53,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:36:53,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:36:53,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:36:53,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:36:53" (1/2) ... [2024-06-27 18:36:53,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9073fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:36:53, skipping insertion in model container [2024-06-27 18:36:53,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:36:53" (1/2) ... [2024-06-27 18:36:53,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6cd37245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:36:53, skipping insertion in model container [2024-06-27 18:36:53,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:36:53" (2/2) ... [2024-06-27 18:36:53,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9073fd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53, skipping insertion in model container [2024-06-27 18:36:53,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:36:53" (2/2) ... [2024-06-27 18:36:53,244 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:36:53,379 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:36:53,381 INFO L97 edCorrectnessWitness]: Location invariant before [L869-L869] (((((((((((((((((((((! multithreaded || (y == 0 || y == 1)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0) [2024-06-27 18:36:53,381 INFO L97 edCorrectnessWitness]: Location invariant before [L866-L866] (((((((((((((((((((((! multithreaded || (y == 0 || y == 1)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0) [2024-06-27 18:36:53,381 INFO L97 edCorrectnessWitness]: Location invariant before [L864-L864] (((((((((((((((((((((! multithreaded || (y == 0 || y == 1)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0) [2024-06-27 18:36:53,381 INFO L97 edCorrectnessWitness]: Location invariant before [L868-L868] (((((((((((((((((((((! multithreaded || (y == 0 || y == 1)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0) [2024-06-27 18:36:53,382 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:36:53,382 INFO L106 edCorrectnessWitness]: ghost_update [L862-L862] multithreaded = 1; [2024-06-27 18:36:53,445 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:36:53,613 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2024-06-27 18:36:53,797 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:36:53,806 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 18:36:53,853 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:36:53,943 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:36:53,990 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:36:53,990 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53 WrapperNode [2024-06-27 18:36:53,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:36:53,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:36:53,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:36:53,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:36:53,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,072 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 134 [2024-06-27 18:36:54,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:36:54,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:36:54,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:36:54,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:36:54,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,107 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-27 18:36:54,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,108 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,120 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:36:54,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:36:54,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:36:54,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:36:54,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (1/1) ... [2024-06-27 18:36:54,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:36:54,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:36:54,157 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) [2024-06-27 18:36:54,186 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 [2024-06-27 18:36:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 18:36:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:36:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 18:36:54,199 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 18:36:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 18:36:54,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 18:36:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 18:36:54,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 18:36:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 18:36:54,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 18:36:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:36:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 18:36:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:36:54,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:36:54,202 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 18:36:54,362 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:36:54,365 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:36:54,796 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:36:54,797 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:36:54,994 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:36:54,994 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:36:54,995 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:36:54 BoogieIcfgContainer [2024-06-27 18:36:54,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:36:54,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:36:54,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:36:55,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:36:55,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:36:53" (1/4) ... [2024-06-27 18:36:55,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf7a6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:36:55, skipping insertion in model container [2024-06-27 18:36:55,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:36:53" (2/4) ... [2024-06-27 18:36:55,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf7a6bd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:36:55, skipping insertion in model container [2024-06-27 18:36:55,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:36:53" (3/4) ... [2024-06-27 18:36:55,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf7a6bd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:36:55, skipping insertion in model container [2024-06-27 18:36:55,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:36:54" (4/4) ... [2024-06-27 18:36:55,004 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2024-06-27 18:36:55,021 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:36:55,021 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 18:36:55,021 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:36:55,079 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 18:36:55,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 57 transitions, 130 flow [2024-06-27 18:36:55,178 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-06-27 18:36:55,179 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:36:55,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 53 events. 1/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2024-06-27 18:36:55,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 57 transitions, 130 flow [2024-06-27 18:36:55,187 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 53 transitions, 118 flow [2024-06-27 18:36:55,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:36:55,210 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;@51f4ebef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:36:55,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 18:36:55,215 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:36:55,215 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 18:36:55,215 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:36:55,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:36:55,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:36:55,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:36:55,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:36:55,225 INFO L85 PathProgramCache]: Analyzing trace with hash 377541598, now seen corresponding path program 1 times [2024-06-27 18:36:55,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:36:55,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148102289] [2024-06-27 18:36:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:36:55,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:36:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:36:56,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:36:56,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:36:56,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148102289] [2024-06-27 18:36:56,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148102289] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:36:56,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:36:56,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:36:56,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47180294] [2024-06-27 18:36:56,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:36:56,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:36:56,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:36:56,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:36:56,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:36:56,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:36:56,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-06-27 18:36:56,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:36:56,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:36:56,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:01,031 INFO L124 PetriNetUnfolderBase]: 25098/37738 cut-off events. [2024-06-27 18:37:01,031 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-06-27 18:37:01,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71493 conditions, 37738 events. 25098/37738 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 1388. Compared 273294 event pairs, 20823 based on Foata normal form. 1051/36348 useless extension candidates. Maximal degree in co-relation 71480. Up to 33298 conditions per place. [2024-06-27 18:37:01,301 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 52 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2024-06-27 18:37:01,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 71 transitions, 279 flow [2024-06-27 18:37:01,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:37:01,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:37:01,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-06-27 18:37:01,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.672514619883041 [2024-06-27 18:37:01,314 INFO L175 Difference]: Start difference. First operand has 65 places, 53 transitions, 118 flow. Second operand 3 states and 115 transitions. [2024-06-27 18:37:01,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 71 transitions, 279 flow [2024-06-27 18:37:01,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 71 transitions, 272 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 18:37:01,320 INFO L231 Difference]: Finished difference. Result has 64 places, 57 transitions, 158 flow [2024-06-27 18:37:01,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=64, PETRI_TRANSITIONS=57} [2024-06-27 18:37:01,326 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -1 predicate places. [2024-06-27 18:37:01,326 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 57 transitions, 158 flow [2024-06-27 18:37:01,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-06-27 18:37:01,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:01,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:37:01,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:37:01,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:01,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:01,328 INFO L85 PathProgramCache]: Analyzing trace with hash 377542420, now seen corresponding path program 1 times [2024-06-27 18:37:01,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:01,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072941538] [2024-06-27 18:37:01,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:01,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:01,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:37:01,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:01,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072941538] [2024-06-27 18:37:01,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072941538] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:01,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:01,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:37:01,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001527768] [2024-06-27 18:37:01,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:01,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:37:01,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:01,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:37:01,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:37:01,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 57 [2024-06-27 18:37:01,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-06-27 18:37:01,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:01,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 57 [2024-06-27 18:37:01,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:02,412 INFO L124 PetriNetUnfolderBase]: 5065/8428 cut-off events. [2024-06-27 18:37:02,413 INFO L125 PetriNetUnfolderBase]: For 694/694 co-relation queries the response was YES. [2024-06-27 18:37:02,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16528 conditions, 8428 events. 5065/8428 cut-off events. For 694/694 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 63155 event pairs, 2637 based on Foata normal form. 0/7870 useless extension candidates. Maximal degree in co-relation 16516. Up to 5845 conditions per place. [2024-06-27 18:37:02,474 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 45 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2024-06-27 18:37:02,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 76 transitions, 293 flow [2024-06-27 18:37:02,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:37:02,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:37:02,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2024-06-27 18:37:02,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7894736842105263 [2024-06-27 18:37:02,477 INFO L175 Difference]: Start difference. First operand has 64 places, 57 transitions, 158 flow. Second operand 3 states and 135 transitions. [2024-06-27 18:37:02,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 76 transitions, 293 flow [2024-06-27 18:37:02,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 76 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:37:02,480 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 150 flow [2024-06-27 18:37:02,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-06-27 18:37:02,481 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -1 predicate places. [2024-06-27 18:37:02,481 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 150 flow [2024-06-27 18:37:02,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-06-27 18:37:02,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:02,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:02,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:37:02,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:02,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:02,483 INFO L85 PathProgramCache]: Analyzing trace with hash 2040249884, now seen corresponding path program 1 times [2024-06-27 18:37:02,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:02,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152990017] [2024-06-27 18:37:02,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:02,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:03,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:37:03,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:03,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152990017] [2024-06-27 18:37:03,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152990017] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:03,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:03,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:37:03,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68508207] [2024-06-27 18:37:03,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:03,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:37:03,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:03,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:37:03,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:37:03,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:03,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-06-27 18:37:03,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:03,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:03,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:06,784 INFO L124 PetriNetUnfolderBase]: 21348/32164 cut-off events. [2024-06-27 18:37:06,789 INFO L125 PetriNetUnfolderBase]: For 7278/7278 co-relation queries the response was YES. [2024-06-27 18:37:06,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68181 conditions, 32164 events. 21348/32164 cut-off events. For 7278/7278 co-relation queries the response was YES. Maximal size of possible extension queue 1180. Compared 226148 event pairs, 17041 based on Foata normal form. 4/31263 useless extension candidates. Maximal degree in co-relation 68168. Up to 28350 conditions per place. [2024-06-27 18:37:06,960 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 64 selfloop transitions, 10 changer transitions 2/89 dead transitions. [2024-06-27 18:37:06,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 89 transitions, 398 flow [2024-06-27 18:37:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 18:37:06,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 18:37:06,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 144 transitions. [2024-06-27 18:37:06,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.631578947368421 [2024-06-27 18:37:06,967 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 150 flow. Second operand 4 states and 144 transitions. [2024-06-27 18:37:06,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 89 transitions, 398 flow [2024-06-27 18:37:06,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 89 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:37:06,974 INFO L231 Difference]: Finished difference. Result has 67 places, 63 transitions, 231 flow [2024-06-27 18:37:06,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2024-06-27 18:37:06,975 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 2 predicate places. [2024-06-27 18:37:06,976 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 231 flow [2024-06-27 18:37:06,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-06-27 18:37:06,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:06,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:06,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:37:06,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:06,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1176762099, now seen corresponding path program 1 times [2024-06-27 18:37:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:06,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523548803] [2024-06-27 18:37:06,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:06,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:07,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:37:07,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:07,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523548803] [2024-06-27 18:37:07,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523548803] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:07,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:07,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:37:07,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509696885] [2024-06-27 18:37:07,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:07,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 18:37:07,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:07,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 18:37:07,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 18:37:08,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:08,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 231 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-06-27 18:37:08,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:08,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:08,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:10,647 INFO L124 PetriNetUnfolderBase]: 18581/28588 cut-off events. [2024-06-27 18:37:10,648 INFO L125 PetriNetUnfolderBase]: For 13168/13168 co-relation queries the response was YES. [2024-06-27 18:37:10,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65749 conditions, 28588 events. 18581/28588 cut-off events. For 13168/13168 co-relation queries the response was YES. Maximal size of possible extension queue 1095. Compared 204612 event pairs, 12192 based on Foata normal form. 10/27684 useless extension candidates. Maximal degree in co-relation 65734. Up to 24518 conditions per place. [2024-06-27 18:37:10,847 INFO L140 encePairwiseOnDemand]: 43/57 looper letters, 87 selfloop transitions, 23 changer transitions 0/123 dead transitions. [2024-06-27 18:37:10,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 123 transitions, 651 flow [2024-06-27 18:37:10,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:37:10,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:37:10,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 188 transitions. [2024-06-27 18:37:10,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6596491228070176 [2024-06-27 18:37:10,850 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 231 flow. Second operand 5 states and 188 transitions. [2024-06-27 18:37:10,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 123 transitions, 651 flow [2024-06-27 18:37:10,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 123 transitions, 636 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-06-27 18:37:10,970 INFO L231 Difference]: Finished difference. Result has 72 places, 78 transitions, 380 flow [2024-06-27 18:37:10,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=380, PETRI_PLACES=72, PETRI_TRANSITIONS=78} [2024-06-27 18:37:10,973 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2024-06-27 18:37:10,973 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 78 transitions, 380 flow [2024-06-27 18:37:10,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-06-27 18:37:10,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:10,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:10,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:37:10,974 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:10,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:10,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2119885733, now seen corresponding path program 1 times [2024-06-27 18:37:10,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:10,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67330843] [2024-06-27 18:37:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:10,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:12,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:37:12,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:12,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67330843] [2024-06-27 18:37:12,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67330843] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:12,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:12,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:37:12,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366447514] [2024-06-27 18:37:12,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:12,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:37:12,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:12,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:37:12,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:37:12,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:12,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 78 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-06-27 18:37:12,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:12,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:12,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:15,287 INFO L124 PetriNetUnfolderBase]: 18658/27975 cut-off events. [2024-06-27 18:37:15,288 INFO L125 PetriNetUnfolderBase]: For 32317/32317 co-relation queries the response was YES. [2024-06-27 18:37:15,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76610 conditions, 27975 events. 18658/27975 cut-off events. For 32317/32317 co-relation queries the response was YES. Maximal size of possible extension queue 1054. Compared 192536 event pairs, 9445 based on Foata normal form. 10/27068 useless extension candidates. Maximal degree in co-relation 76591. Up to 24532 conditions per place. [2024-06-27 18:37:15,486 INFO L140 encePairwiseOnDemand]: 42/57 looper letters, 101 selfloop transitions, 28 changer transitions 0/142 dead transitions. [2024-06-27 18:37:15,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 142 transitions, 864 flow [2024-06-27 18:37:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:37:15,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:37:15,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 224 transitions. [2024-06-27 18:37:15,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6549707602339181 [2024-06-27 18:37:15,490 INFO L175 Difference]: Start difference. First operand has 72 places, 78 transitions, 380 flow. Second operand 6 states and 224 transitions. [2024-06-27 18:37:15,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 142 transitions, 864 flow [2024-06-27 18:37:15,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 142 transitions, 852 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 18:37:15,511 INFO L231 Difference]: Finished difference. Result has 78 places, 83 transitions, 478 flow [2024-06-27 18:37:15,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=478, PETRI_PLACES=78, PETRI_TRANSITIONS=83} [2024-06-27 18:37:15,514 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 13 predicate places. [2024-06-27 18:37:15,514 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 83 transitions, 478 flow [2024-06-27 18:37:15,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-06-27 18:37:15,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:15,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:15,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 18:37:15,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:15,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:15,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1291947284, now seen corresponding path program 1 times [2024-06-27 18:37:15,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:15,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185305240] [2024-06-27 18:37:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:15,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:16,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:37:16,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:16,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185305240] [2024-06-27 18:37:16,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185305240] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:16,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:16,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:37:16,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726340397] [2024-06-27 18:37:16,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:16,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:37:16,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:16,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:37:16,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:37:17,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:17,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 83 transitions, 478 flow. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 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) [2024-06-27 18:37:17,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:17,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:17,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:20,107 INFO L124 PetriNetUnfolderBase]: 19005/26327 cut-off events. [2024-06-27 18:37:20,107 INFO L125 PetriNetUnfolderBase]: For 49449/49453 co-relation queries the response was YES. [2024-06-27 18:37:20,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83322 conditions, 26327 events. 19005/26327 cut-off events. For 49449/49453 co-relation queries the response was YES. Maximal size of possible extension queue 986. Compared 159854 event pairs, 6720 based on Foata normal form. 41/26201 useless extension candidates. Maximal degree in co-relation 83300. Up to 24478 conditions per place. [2024-06-27 18:37:20,305 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 122 selfloop transitions, 50 changer transitions 0/185 dead transitions. [2024-06-27 18:37:20,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 185 transitions, 1296 flow [2024-06-27 18:37:20,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:37:20,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:37:20,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 266 transitions. [2024-06-27 18:37:20,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-06-27 18:37:20,308 INFO L175 Difference]: Start difference. First operand has 78 places, 83 transitions, 478 flow. Second operand 7 states and 266 transitions. [2024-06-27 18:37:20,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 185 transitions, 1296 flow [2024-06-27 18:37:20,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 185 transitions, 1226 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-27 18:37:20,342 INFO L231 Difference]: Finished difference. Result has 83 places, 106 transitions, 776 flow [2024-06-27 18:37:20,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=776, PETRI_PLACES=83, PETRI_TRANSITIONS=106} [2024-06-27 18:37:20,346 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 18 predicate places. [2024-06-27 18:37:20,346 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 106 transitions, 776 flow [2024-06-27 18:37:20,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 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) [2024-06-27 18:37:20,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:20,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:20,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 18:37:20,347 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:20,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:20,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1664927783, now seen corresponding path program 1 times [2024-06-27 18:37:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:20,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300764601] [2024-06-27 18:37:20,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:20,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:21,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:37:21,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:21,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300764601] [2024-06-27 18:37:21,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300764601] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:21,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:21,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:37:21,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609954040] [2024-06-27 18:37:21,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:21,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:37:21,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:21,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:37:21,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:37:21,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 57 [2024-06-27 18:37:21,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 106 transitions, 776 flow. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2024-06-27 18:37:21,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:21,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 57 [2024-06-27 18:37:21,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:24,810 INFO L124 PetriNetUnfolderBase]: 21988/33251 cut-off events. [2024-06-27 18:37:24,810 INFO L125 PetriNetUnfolderBase]: For 96549/96549 co-relation queries the response was YES. [2024-06-27 18:37:24,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110439 conditions, 33251 events. 21988/33251 cut-off events. For 96549/96549 co-relation queries the response was YES. Maximal size of possible extension queue 1176. Compared 235661 event pairs, 10920 based on Foata normal form. 6/32334 useless extension candidates. Maximal degree in co-relation 110412. Up to 29213 conditions per place. [2024-06-27 18:37:25,093 INFO L140 encePairwiseOnDemand]: 47/57 looper letters, 103 selfloop transitions, 17 changer transitions 0/131 dead transitions. [2024-06-27 18:37:25,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 131 transitions, 1082 flow [2024-06-27 18:37:25,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:37:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:37:25,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 150 transitions. [2024-06-27 18:37:25,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2024-06-27 18:37:25,095 INFO L175 Difference]: Start difference. First operand has 83 places, 106 transitions, 776 flow. Second operand 5 states and 150 transitions. [2024-06-27 18:37:25,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 131 transitions, 1082 flow [2024-06-27 18:37:25,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 131 transitions, 1018 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-06-27 18:37:25,181 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 761 flow [2024-06-27 18:37:25,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=761, PETRI_PLACES=88, PETRI_TRANSITIONS=106} [2024-06-27 18:37:25,182 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 23 predicate places. [2024-06-27 18:37:25,182 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 761 flow [2024-06-27 18:37:25,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2024-06-27 18:37:25,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:25,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:25,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 18:37:25,183 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:25,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:25,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1047350325, now seen corresponding path program 1 times [2024-06-27 18:37:25,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:25,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289387471] [2024-06-27 18:37:25,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:25,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:26,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:37:26,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:26,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289387471] [2024-06-27 18:37:26,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289387471] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:26,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:26,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:37:26,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560567608] [2024-06-27 18:37:26,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:26,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:37:26,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:26,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:37:26,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:37:26,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 57 [2024-06-27 18:37:26,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 761 flow. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 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) [2024-06-27 18:37:26,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:26,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 57 [2024-06-27 18:37:26,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:29,890 INFO L124 PetriNetUnfolderBase]: 22046/32576 cut-off events. [2024-06-27 18:37:29,890 INFO L125 PetriNetUnfolderBase]: For 83742/83742 co-relation queries the response was YES. [2024-06-27 18:37:30,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104620 conditions, 32576 events. 22046/32576 cut-off events. For 83742/83742 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 220307 event pairs, 9648 based on Foata normal form. 12/31668 useless extension candidates. Maximal degree in co-relation 104589. Up to 29026 conditions per place. [2024-06-27 18:37:30,158 INFO L140 encePairwiseOnDemand]: 43/57 looper letters, 114 selfloop transitions, 27 changer transitions 0/152 dead transitions. [2024-06-27 18:37:30,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 152 transitions, 1240 flow [2024-06-27 18:37:30,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:37:30,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:37:30,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 190 transitions. [2024-06-27 18:37:30,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-06-27 18:37:30,160 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 761 flow. Second operand 6 states and 190 transitions. [2024-06-27 18:37:30,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 152 transitions, 1240 flow [2024-06-27 18:37:30,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 152 transitions, 1189 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-27 18:37:30,226 INFO L231 Difference]: Finished difference. Result has 90 places, 110 transitions, 822 flow [2024-06-27 18:37:30,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=822, PETRI_PLACES=90, PETRI_TRANSITIONS=110} [2024-06-27 18:37:30,227 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 25 predicate places. [2024-06-27 18:37:30,228 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 110 transitions, 822 flow [2024-06-27 18:37:30,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 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) [2024-06-27 18:37:30,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:30,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:30,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 18:37:30,229 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:30,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:30,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1384553783, now seen corresponding path program 2 times [2024-06-27 18:37:30,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:30,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860593048] [2024-06-27 18:37:30,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:30,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:31,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:37:31,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:31,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860593048] [2024-06-27 18:37:31,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860593048] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:31,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:31,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:37:31,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004797567] [2024-06-27 18:37:31,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:31,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:37:31,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:31,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:37:31,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:37:31,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 57 [2024-06-27 18:37:31,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 110 transitions, 822 flow. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 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) [2024-06-27 18:37:31,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:31,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 57 [2024-06-27 18:37:31,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:34,859 INFO L124 PetriNetUnfolderBase]: 21995/33247 cut-off events. [2024-06-27 18:37:34,860 INFO L125 PetriNetUnfolderBase]: For 92495/92495 co-relation queries the response was YES. [2024-06-27 18:37:34,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106389 conditions, 33247 events. 21995/33247 cut-off events. For 92495/92495 co-relation queries the response was YES. Maximal size of possible extension queue 1176. Compared 235290 event pairs, 10900 based on Foata normal form. 6/32331 useless extension candidates. Maximal degree in co-relation 106358. Up to 29199 conditions per place. [2024-06-27 18:37:35,104 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 116 selfloop transitions, 16 changer transitions 0/143 dead transitions. [2024-06-27 18:37:35,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 143 transitions, 1172 flow [2024-06-27 18:37:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:37:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:37:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 178 transitions. [2024-06-27 18:37:35,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.52046783625731 [2024-06-27 18:37:35,106 INFO L175 Difference]: Start difference. First operand has 90 places, 110 transitions, 822 flow. Second operand 6 states and 178 transitions. [2024-06-27 18:37:35,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 143 transitions, 1172 flow [2024-06-27 18:37:35,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 143 transitions, 1125 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-06-27 18:37:35,184 INFO L231 Difference]: Finished difference. Result has 93 places, 110 transitions, 818 flow [2024-06-27 18:37:35,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=818, PETRI_PLACES=93, PETRI_TRANSITIONS=110} [2024-06-27 18:37:35,185 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 28 predicate places. [2024-06-27 18:37:35,185 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 110 transitions, 818 flow [2024-06-27 18:37:35,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 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) [2024-06-27 18:37:35,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:35,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:35,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 18:37:35,186 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:35,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:35,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1746060753, now seen corresponding path program 1 times [2024-06-27 18:37:35,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:35,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458023879] [2024-06-27 18:37:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:35,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:36,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:37:36,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:36,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458023879] [2024-06-27 18:37:36,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458023879] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:36,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:36,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 18:37:36,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237042146] [2024-06-27 18:37:36,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:36,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 18:37:36,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:36,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 18:37:36,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-27 18:37:36,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 57 [2024-06-27 18:37:36,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 110 transitions, 818 flow. Second operand has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 9 states have internal predecessors, (138), 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) [2024-06-27 18:37:36,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:36,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 57 [2024-06-27 18:37:36,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand