./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix051_pso.opt_rmo.opt_tso.opt.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_pso.opt_rmo.opt_tso.opt.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix051_pso.opt_rmo.opt_tso.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 22:27:21,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 22:27:21,403 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 22:27:21,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 22:27:21,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 22:27:21,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 22:27:21,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 22:27:21,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 22:27:21,464 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 22:27:21,464 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 22:27:21,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 22:27:21,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 22:27:21,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 22:27:21,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 22:27:21,466 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 22:27:21,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 22:27:21,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 22:27:21,467 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 22:27:21,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 22:27:21,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 22:27:21,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 22:27:21,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 22:27:21,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 22:27:21,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 22:27:21,472 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 22:27:21,473 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 22:27:21,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 22:27:21,473 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 22:27:21,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 22:27:21,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 22:27:21,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 22:27:21,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 22:27:21,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:27:21,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 22:27:21,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 22:27:21,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 22:27:21,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 22:27:21,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 22:27:21,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 22:27:21,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 22:27:21,479 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 22:27:21,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 22:27:21,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 22:27:21,480 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 22:27:21,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 22:27:21,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 22:27:21,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 22:27:21,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 22:27:21,701 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 22:27:21,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2024-06-27 22:27:22,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 22:27:22,968 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 22:27:22,969 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2024-06-27 22:27:22,983 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b40b442f/587f0ac511254247893f79535827f4e7/FLAGcf7dec50e [2024-06-27 22:27:23,003 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b40b442f/587f0ac511254247893f79535827f4e7 [2024-06-27 22:27:23,005 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 22:27:23,005 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 22:27:23,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix051_pso.opt_rmo.opt_tso.opt.yml/witness.yml [2024-06-27 22:27:23,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 22:27:23,091 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 22:27:23,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 22:27:23,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 22:27:23,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 22:27:23,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:27:23" (1/2) ... [2024-06-27 22:27:23,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520039d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:27:23, skipping insertion in model container [2024-06-27 22:27:23,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:27:23" (1/2) ... [2024-06-27 22:27:23,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@67902f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:27:23, skipping insertion in model container [2024-06-27 22:27:23,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:27:23" (2/2) ... [2024-06-27 22:27:23,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520039d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:27:23, skipping insertion in model container [2024-06-27 22:27:23,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:27:23" (2/2) ... [2024-06-27 22:27:23,100 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 22:27:23,129 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 22:27:23,130 INFO L97 edCorrectnessWitness]: Location invariant before [L851-L851] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$mem_tmp >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EAX) - (long long )a >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$mem_tmp >= 0LL) && (long long )z - (long long )z$mem_tmp >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$r_buff1_thd4 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff0_used >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff1_used >= 0LL) && (long long )z$r_buff1_thd4 - (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd4 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff0_used - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:27:23,130 INFO L97 edCorrectnessWitness]: Location invariant before [L854-L854] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$mem_tmp >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EAX) - (long long )a >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$mem_tmp >= 0LL) && (long long )z - (long long )z$mem_tmp >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$r_buff1_thd4 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff0_used >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff1_used >= 0LL) && (long long )z$r_buff1_thd4 - (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd4 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff0_used - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:27:23,130 INFO L97 edCorrectnessWitness]: Location invariant before [L853-L853] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$mem_tmp >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EAX) - (long long )a >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$mem_tmp >= 0LL) && (long long )z - (long long )z$mem_tmp >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$r_buff1_thd4 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff0_used >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff1_used >= 0LL) && (long long )z$r_buff1_thd4 - (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd4 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff0_used - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:27:23,131 INFO L97 edCorrectnessWitness]: Location invariant before [L849-L849] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$mem_tmp >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$r_buff0_thd4 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EAX >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EAX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EAX) - (long long )a >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$mem_tmp >= 0LL) && (long long )z - (long long )z$mem_tmp >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$r_buff1_thd4 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff0_used >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd4 - (long long )z$w_buff1_used >= 0LL) && (long long )z$r_buff1_thd4 - (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd4 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff0_used - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:27:23,131 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 22:27:23,131 INFO L106 edCorrectnessWitness]: ghost_update [L847-L847] multithreaded = 1; [2024-06-27 22:27:23,159 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 22:27:23,378 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_pso.opt_rmo.opt_tso.opt.i[964,977] [2024-06-27 22:27:23,526 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:27:23,541 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 22:27:23,569 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_pso.opt_rmo.opt_tso.opt.i[964,977] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 22:27:23,725 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:27:23,752 INFO L206 MainTranslator]: Completed translation [2024-06-27 22:27:23,753 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:27:23 WrapperNode [2024-06-27 22:27:23,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 22:27:23,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 22:27:23,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 22:27:23,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 22:27:23,759 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,783 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,828 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 134 [2024-06-27 22:27:23,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 22:27:23,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 22:27:23,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 22:27:23,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 22:27:23,839 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,839 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,843 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,864 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 22:27:23,864 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,865 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,874 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,887 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,891 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,893 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 22:27:23,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 22:27:23,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 22:27:23,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 22:27:23,904 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 10:27:23" (1/1) ... [2024-06-27 22:27:23,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:27:23,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 22:27:23,927 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 22:27:23,929 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 22:27:23,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 22:27:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 22:27:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 22:27:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 22:27:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 22:27:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 22:27:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 22:27:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 22:27:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 22:27:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 22:27:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 22:27:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 22:27:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 22:27:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 22:27:23,959 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 22:27:24,055 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 22:27:24,057 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 22:27:24,575 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 22:27:24,575 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 22:27:24,708 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 22:27:24,708 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 22:27:24,709 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:27:24 BoogieIcfgContainer [2024-06-27 22:27:24,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 22:27:24,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 22:27:24,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 22:27:24,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 22:27:24,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 10:27:23" (1/4) ... [2024-06-27 22:27:24,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208f05f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 10:27:24, skipping insertion in model container [2024-06-27 22:27:24,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:27:23" (2/4) ... [2024-06-27 22:27:24,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208f05f4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:27:24, skipping insertion in model container [2024-06-27 22:27:24,718 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 10:27:23" (3/4) ... [2024-06-27 22:27:24,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208f05f4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:27:24, skipping insertion in model container [2024-06-27 22:27:24,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:27:24" (4/4) ... [2024-06-27 22:27:24,720 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_pso.opt_rmo.opt_tso.opt.i [2024-06-27 22:27:24,733 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 22:27:24,733 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 22:27:24,734 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 22:27:24,784 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 22:27:24,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 57 transitions, 130 flow [2024-06-27 22:27:24,845 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-06-27 22:27:24,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:27:24,848 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 5. Compared 96 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 22:27:24,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 57 transitions, 130 flow [2024-06-27 22:27:24,852 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 53 transitions, 118 flow [2024-06-27 22:27:24,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 22:27:24,873 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;@6829c49b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 22:27:24,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 22:27:24,877 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 22:27:24,878 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 22:27:24,878 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:27:24,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:27:24,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 22:27:24,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:27:24,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:27:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash 352227912, now seen corresponding path program 1 times [2024-06-27 22:27:24,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:27:24,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156069656] [2024-06-27 22:27:24,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:27:24,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:27:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:27:26,018 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 22:27:26,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:27:26,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156069656] [2024-06-27 22:27:26,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156069656] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:27:26,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:27:26,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 22:27:26,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545209898] [2024-06-27 22:27:26,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:27:26,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 22:27:26,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:27:26,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 22:27:26,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 22:27:26,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 57 [2024-06-27 22:27:26,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:27:26,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:27:26,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 57 [2024-06-27 22:27:26,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:27:28,164 INFO L124 PetriNetUnfolderBase]: 13814/21338 cut-off events. [2024-06-27 22:27:28,165 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2024-06-27 22:27:28,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40100 conditions, 21338 events. 13814/21338 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 894. Compared 155031 event pairs, 11680 based on Foata normal form. 600/20471 useless extension candidates. Maximal degree in co-relation 40087. Up to 18489 conditions per place. [2024-06-27 22:27:28,308 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 49 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2024-06-27 22:27:28,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 269 flow [2024-06-27 22:27:28,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 22:27:28,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 22:27:28,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-06-27 22:27:28,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7076023391812866 [2024-06-27 22:27:28,319 INFO L175 Difference]: Start difference. First operand has 65 places, 53 transitions, 118 flow. Second operand 3 states and 121 transitions. [2024-06-27 22:27:28,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 269 flow [2024-06-27 22:27:28,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 70 transitions, 262 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 22:27:28,323 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 153 flow [2024-06-27 22:27:28,325 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=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2024-06-27 22:27:28,327 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -1 predicate places. [2024-06-27 22:27:28,327 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 153 flow [2024-06-27 22:27:28,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:27:28,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:27:28,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:27:28,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 22:27:28,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:27:28,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:27:28,329 INFO L85 PathProgramCache]: Analyzing trace with hash -811345531, now seen corresponding path program 1 times [2024-06-27 22:27:28,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:27:28,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107485568] [2024-06-27 22:27:28,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:27:28,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:27:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:27:29,297 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 22:27:29,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:27:29,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107485568] [2024-06-27 22:27:29,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107485568] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:27:29,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:27:29,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 22:27:29,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998402008] [2024-06-27 22:27:29,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:27:29,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 22:27:29,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:27:29,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 22:27:29,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 22:27:29,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 57 [2024-06-27 22:27:29,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 22:27:29,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:27:29,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 57 [2024-06-27 22:27:29,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:27:31,269 INFO L124 PetriNetUnfolderBase]: 16022/21727 cut-off events. [2024-06-27 22:27:31,270 INFO L125 PetriNetUnfolderBase]: For 3424/3424 co-relation queries the response was YES. [2024-06-27 22:27:31,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49062 conditions, 21727 events. 16022/21727 cut-off events. For 3424/3424 co-relation queries the response was YES. Maximal size of possible extension queue 871. Compared 129351 event pairs, 9499 based on Foata normal form. 4/21006 useless extension candidates. Maximal degree in co-relation 49050. Up to 21357 conditions per place. [2024-06-27 22:27:31,349 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 64 selfloop transitions, 9 changer transitions 0/88 dead transitions. [2024-06-27 22:27:31,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 88 transitions, 381 flow [2024-06-27 22:27:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 22:27:31,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 22:27:31,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 154 transitions. [2024-06-27 22:27:31,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6754385964912281 [2024-06-27 22:27:31,352 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 153 flow. Second operand 4 states and 154 transitions. [2024-06-27 22:27:31,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 88 transitions, 381 flow [2024-06-27 22:27:31,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 88 transitions, 376 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 22:27:31,354 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 203 flow [2024-06-27 22:27:31,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-06-27 22:27:31,355 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 2 predicate places. [2024-06-27 22:27:31,355 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 203 flow [2024-06-27 22:27:31,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 22:27:31,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:27:31,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:27:31,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 22:27:31,356 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:27:31,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:27:31,356 INFO L85 PathProgramCache]: Analyzing trace with hash 618092957, now seen corresponding path program 1 times [2024-06-27 22:27:31,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:27:31,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818129202] [2024-06-27 22:27:31,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:27:31,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:27:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:27:32,316 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 22:27:32,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:27:32,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818129202] [2024-06-27 22:27:32,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818129202] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:27:32,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:27:32,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:27:32,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478418479] [2024-06-27 22:27:32,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:27:32,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:27:32,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:27:32,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:27:32,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:27:32,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 57 [2024-06-27 22:27:32,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 22:27:32,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:27:32,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 57 [2024-06-27 22:27:32,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:27:34,274 INFO L124 PetriNetUnfolderBase]: 15948/21655 cut-off events. [2024-06-27 22:27:34,275 INFO L125 PetriNetUnfolderBase]: For 9605/9605 co-relation queries the response was YES. [2024-06-27 22:27:34,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54423 conditions, 21655 events. 15948/21655 cut-off events. For 9605/9605 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 128950 event pairs, 7118 based on Foata normal form. 7/20978 useless extension candidates. Maximal degree in co-relation 54409. Up to 21118 conditions per place. [2024-06-27 22:27:34,375 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 86 selfloop transitions, 21 changer transitions 0/122 dead transitions. [2024-06-27 22:27:34,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 122 transitions, 615 flow [2024-06-27 22:27:34,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:27:34,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:27:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 203 transitions. [2024-06-27 22:27:34,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.712280701754386 [2024-06-27 22:27:34,379 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 203 flow. Second operand 5 states and 203 transitions. [2024-06-27 22:27:34,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 122 transitions, 615 flow [2024-06-27 22:27:34,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 122 transitions, 596 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-27 22:27:34,385 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 340 flow [2024-06-27 22:27:34,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=340, PETRI_PLACES=72, PETRI_TRANSITIONS=74} [2024-06-27 22:27:34,386 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2024-06-27 22:27:34,386 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 340 flow [2024-06-27 22:27:34,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 22:27:34,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:27:34,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:27:34,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 22:27:34,387 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:27:34,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:27:34,388 INFO L85 PathProgramCache]: Analyzing trace with hash 422991866, now seen corresponding path program 1 times [2024-06-27 22:27:34,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:27:34,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617250078] [2024-06-27 22:27:34,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:27:34,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:27:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:27:35,398 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 22:27:35,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:27:35,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617250078] [2024-06-27 22:27:35,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617250078] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:27:35,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:27:35,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:27:35,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971677581] [2024-06-27 22:27:35,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:27:35,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:27:35,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:27:35,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:27:35,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:27:35,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 57 [2024-06-27 22:27:35,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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 22:27:35,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:27:35,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 57 [2024-06-27 22:27:35,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:27:37,393 INFO L124 PetriNetUnfolderBase]: 16147/21950 cut-off events. [2024-06-27 22:27:37,393 INFO L125 PetriNetUnfolderBase]: For 32249/32276 co-relation queries the response was YES. [2024-06-27 22:27:37,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65859 conditions, 21950 events. 16147/21950 cut-off events. For 32249/32276 co-relation queries the response was YES. Maximal size of possible extension queue 879. Compared 131128 event pairs, 5477 based on Foata normal form. 124/22046 useless extension candidates. Maximal degree in co-relation 65842. Up to 21089 conditions per place. [2024-06-27 22:27:37,540 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 100 selfloop transitions, 24 changer transitions 0/139 dead transitions. [2024-06-27 22:27:37,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 139 transitions, 792 flow [2024-06-27 22:27:37,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:27:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:27:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 237 transitions. [2024-06-27 22:27:37,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6929824561403509 [2024-06-27 22:27:37,542 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 340 flow. Second operand 6 states and 237 transitions. [2024-06-27 22:27:37,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 139 transitions, 792 flow [2024-06-27 22:27:37,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 139 transitions, 780 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 22:27:37,553 INFO L231 Difference]: Finished difference. Result has 77 places, 76 transitions, 411 flow [2024-06-27 22:27:37,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=411, PETRI_PLACES=77, PETRI_TRANSITIONS=76} [2024-06-27 22:27:37,554 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 12 predicate places. [2024-06-27 22:27:37,554 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 76 transitions, 411 flow [2024-06-27 22:27:37,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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 22:27:37,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:27:37,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:27:37,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 22:27:37,555 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:27:37,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:27:37,556 INFO L85 PathProgramCache]: Analyzing trace with hash 274427274, now seen corresponding path program 1 times [2024-06-27 22:27:37,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:27:37,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774412588] [2024-06-27 22:27:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:27:37,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:27:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:27:38,651 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 22:27:38,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:27:38,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774412588] [2024-06-27 22:27:38,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774412588] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:27:38,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:27:38,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:27:38,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531799714] [2024-06-27 22:27:38,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:27:38,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:27:38,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:27:38,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:27:38,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:27:38,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57 [2024-06-27 22:27:38,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 76 transitions, 411 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 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 22:27:38,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:27:38,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57 [2024-06-27 22:27:38,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:27:41,293 INFO L124 PetriNetUnfolderBase]: 15802/23824 cut-off events. [2024-06-27 22:27:41,294 INFO L125 PetriNetUnfolderBase]: For 54038/54058 co-relation queries the response was YES. [2024-06-27 22:27:41,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72378 conditions, 23824 events. 15802/23824 cut-off events. For 54038/54058 co-relation queries the response was YES. Maximal size of possible extension queue 957. Compared 169791 event pairs, 9695 based on Foata normal form. 3/23247 useless extension candidates. Maximal degree in co-relation 72357. Up to 21119 conditions per place. [2024-06-27 22:27:41,429 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 78 selfloop transitions, 12 changer transitions 0/104 dead transitions. [2024-06-27 22:27:41,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 104 transitions, 667 flow [2024-06-27 22:27:41,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:27:41,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:27:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2024-06-27 22:27:41,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5824561403508772 [2024-06-27 22:27:41,433 INFO L175 Difference]: Start difference. First operand has 77 places, 76 transitions, 411 flow. Second operand 5 states and 166 transitions. [2024-06-27 22:27:41,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 104 transitions, 667 flow [2024-06-27 22:27:41,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 104 transitions, 604 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-06-27 22:27:41,455 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 404 flow [2024-06-27 22:27:41,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=404, PETRI_PLACES=79, PETRI_TRANSITIONS=78} [2024-06-27 22:27:41,457 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2024-06-27 22:27:41,457 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 404 flow [2024-06-27 22:27:41,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 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 22:27:41,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:27:41,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:27:41,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 22:27:41,458 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:27:41,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:27:41,458 INFO L85 PathProgramCache]: Analyzing trace with hash -989715347, now seen corresponding path program 1 times [2024-06-27 22:27:41,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:27:41,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106804369] [2024-06-27 22:27:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:27:41,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:27:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:27:42,443 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 22:27:42,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:27:42,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106804369] [2024-06-27 22:27:42,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106804369] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:27:42,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:27:42,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:27:42,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664680154] [2024-06-27 22:27:42,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:27:42,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:27:42,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:27:42,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:27:42,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:27:42,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 22:27:42,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 78 transitions, 404 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:27:42,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:27:42,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 22:27:42,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:27:45,466 INFO L124 PetriNetUnfolderBase]: 18689/27553 cut-off events. [2024-06-27 22:27:45,467 INFO L125 PetriNetUnfolderBase]: For 58644/58691 co-relation queries the response was YES. [2024-06-27 22:27:45,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83621 conditions, 27553 events. 18689/27553 cut-off events. For 58644/58691 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 188899 event pairs, 9649 based on Foata normal form. 11/26974 useless extension candidates. Maximal degree in co-relation 83596. Up to 24590 conditions per place. [2024-06-27 22:27:45,678 INFO L140 encePairwiseOnDemand]: 41/57 looper letters, 102 selfloop transitions, 41 changer transitions 0/156 dead transitions. [2024-06-27 22:27:45,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 156 transitions, 1010 flow [2024-06-27 22:27:45,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 22:27:45,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 22:27:45,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 242 transitions. [2024-06-27 22:27:45,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.606516290726817 [2024-06-27 22:27:45,680 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 404 flow. Second operand 7 states and 242 transitions. [2024-06-27 22:27:45,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 156 transitions, 1010 flow [2024-06-27 22:27:45,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 156 transitions, 986 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 22:27:45,705 INFO L231 Difference]: Finished difference. Result has 85 places, 99 transitions, 645 flow [2024-06-27 22:27:45,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=645, PETRI_PLACES=85, PETRI_TRANSITIONS=99} [2024-06-27 22:27:45,706 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 20 predicate places. [2024-06-27 22:27:45,706 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 99 transitions, 645 flow [2024-06-27 22:27:45,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:27:45,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:27:45,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:27:45,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 22:27:45,707 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:27:45,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:27:45,707 INFO L85 PathProgramCache]: Analyzing trace with hash -2031925051, now seen corresponding path program 2 times [2024-06-27 22:27:45,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:27:45,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47738819] [2024-06-27 22:27:45,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:27:45,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:27:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:27:47,013 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 22:27:47,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:27:47,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47738819] [2024-06-27 22:27:47,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47738819] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:27:47,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:27:47,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:27:47,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708997210] [2024-06-27 22:27:47,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:27:47,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:27:47,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:27:47,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:27:47,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:27:47,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 22:27:47,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 99 transitions, 645 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:27:47,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:27:47,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 22:27:47,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:27:49,888 INFO L124 PetriNetUnfolderBase]: 18943/25770 cut-off events. [2024-06-27 22:27:49,888 INFO L125 PetriNetUnfolderBase]: For 61933/62012 co-relation queries the response was YES. [2024-06-27 22:27:50,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86082 conditions, 25770 events. 18943/25770 cut-off events. For 61933/62012 co-relation queries the response was YES. Maximal size of possible extension queue 973. Compared 153718 event pairs, 7506 based on Foata normal form. 50/25780 useless extension candidates. Maximal degree in co-relation 86054. Up to 24783 conditions per place. [2024-06-27 22:27:50,154 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 94 selfloop transitions, 58 changer transitions 0/165 dead transitions. [2024-06-27 22:27:50,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 165 transitions, 1339 flow [2024-06-27 22:27:50,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:27:50,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:27:50,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2024-06-27 22:27:50,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6052631578947368 [2024-06-27 22:27:50,156 INFO L175 Difference]: Start difference. First operand has 85 places, 99 transitions, 645 flow. Second operand 6 states and 207 transitions. [2024-06-27 22:27:50,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 165 transitions, 1339 flow [2024-06-27 22:27:50,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 165 transitions, 1268 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-06-27 22:27:50,198 INFO L231 Difference]: Finished difference. Result has 90 places, 120 transitions, 960 flow [2024-06-27 22:27:50,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=960, PETRI_PLACES=90, PETRI_TRANSITIONS=120} [2024-06-27 22:27:50,199 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 25 predicate places. [2024-06-27 22:27:50,199 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 120 transitions, 960 flow [2024-06-27 22:27:50,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:27:50,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:27:50,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:27:50,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 22:27:50,200 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:27:50,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:27:50,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1731659369, now seen corresponding path program 3 times [2024-06-27 22:27:50,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:27:50,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790424128] [2024-06-27 22:27:50,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:27:50,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:27:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:27:51,436 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 22:27:51,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:27:51,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790424128] [2024-06-27 22:27:51,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790424128] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:27:51,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:27:51,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:27:51,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915639104] [2024-06-27 22:27:51,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:27:51,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:27:51,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:27:51,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:27:51,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:27:51,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 22:27:51,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 120 transitions, 960 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:27:51,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:27:51,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 22:27:51,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:27:54,316 INFO L124 PetriNetUnfolderBase]: 18886/25726 cut-off events. [2024-06-27 22:27:54,316 INFO L125 PetriNetUnfolderBase]: For 69180/69249 co-relation queries the response was YES. [2024-06-27 22:27:54,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87036 conditions, 25726 events. 18886/25726 cut-off events. For 69180/69249 co-relation queries the response was YES. Maximal size of possible extension queue 974. Compared 153714 event pairs, 7493 based on Foata normal form. 59/25747 useless extension candidates. Maximal degree in co-relation 87004. Up to 24702 conditions per place. [2024-06-27 22:27:54,576 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 89 selfloop transitions, 62 changer transitions 0/164 dead transitions. [2024-06-27 22:27:54,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 164 transitions, 1410 flow [2024-06-27 22:27:54,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:27:54,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:27:54,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2024-06-27 22:27:54,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5906432748538012 [2024-06-27 22:27:54,578 INFO L175 Difference]: Start difference. First operand has 90 places, 120 transitions, 960 flow. Second operand 6 states and 202 transitions. [2024-06-27 22:27:54,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 164 transitions, 1410 flow [2024-06-27 22:27:54,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 164 transitions, 1337 flow, removed 13 selfloop flow, removed 1 redundant places. [2024-06-27 22:27:54,651 INFO L231 Difference]: Finished difference. Result has 95 places, 120 transitions, 1027 flow [2024-06-27 22:27:54,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=887, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1027, PETRI_PLACES=95, PETRI_TRANSITIONS=120} [2024-06-27 22:27:54,652 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 30 predicate places. [2024-06-27 22:27:54,652 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 120 transitions, 1027 flow [2024-06-27 22:27:54,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:27:54,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:27:54,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:27:54,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 22:27:54,652 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:27:54,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:27:54,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1983679383, now seen corresponding path program 1 times [2024-06-27 22:27:54,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:27:54,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786211080] [2024-06-27 22:27:54,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:27:54,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:27:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:27:56,159 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 22:27:56,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:27:56,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786211080] [2024-06-27 22:27:56,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786211080] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:27:56,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:27:56,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 22:27:56,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650958184] [2024-06-27 22:27:56,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:27:56,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 22:27:56,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:27:56,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 22:27:56,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-27 22:27:56,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 57 [2024-06-27 22:27:56,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 120 transitions, 1027 flow. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:27:56,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:27:56,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 57 [2024-06-27 22:27:56,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:27:59,847 INFO L124 PetriNetUnfolderBase]: 24866/36897 cut-off events. [2024-06-27 22:27:59,848 INFO L125 PetriNetUnfolderBase]: For 108305/108307 co-relation queries the response was YES. [2024-06-27 22:28:00,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115776 conditions, 36897 events. 24866/36897 cut-off events. For 108305/108307 co-relation queries the response was YES. Maximal size of possible extension queue 1303. Compared 260117 event pairs, 14517 based on Foata normal form. 56/36208 useless extension candidates. Maximal degree in co-relation 115740. Up to 31966 conditions per place. [2024-06-27 22:28:00,239 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 162 selfloop transitions, 20 changer transitions 0/194 dead transitions. [2024-06-27 22:28:00,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 194 transitions, 1669 flow [2024-06-27 22:28:00,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 22:28:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 22:28:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 271 transitions. [2024-06-27 22:28:00,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5282651072124757 [2024-06-27 22:28:00,241 INFO L175 Difference]: Start difference. First operand has 95 places, 120 transitions, 1027 flow. Second operand 9 states and 271 transitions. [2024-06-27 22:28:00,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 194 transitions, 1669 flow [2024-06-27 22:28:00,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 194 transitions, 1592 flow, removed 12 selfloop flow, removed 2 redundant places. [2024-06-27 22:28:00,425 INFO L231 Difference]: Finished difference. Result has 104 places, 128 transitions, 1103 flow [2024-06-27 22:28:00,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1103, PETRI_PLACES=104, PETRI_TRANSITIONS=128} [2024-06-27 22:28:00,426 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 39 predicate places. [2024-06-27 22:28:00,426 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 128 transitions, 1103 flow [2024-06-27 22:28:00,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:28:00,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:28:00,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:28:00,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 22:28:00,427 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:28:00,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:28:00,427 INFO L85 PathProgramCache]: Analyzing trace with hash 931624533, now seen corresponding path program 1 times [2024-06-27 22:28:00,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:28:00,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129670391] [2024-06-27 22:28:00,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:28:00,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:28:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:28:01,436 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 22:28:01,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:28:01,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129670391] [2024-06-27 22:28:01,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129670391] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:28:01,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:28:01,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:28:01,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135521148] [2024-06-27 22:28:01,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:28:01,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:28:01,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:28:01,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:28:01,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:28:01,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 22:28:01,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 128 transitions, 1103 flow. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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 22:28:01,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:28:01,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 22:28:01,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:28:04,737 INFO L124 PetriNetUnfolderBase]: 21575/32498 cut-off events. [2024-06-27 22:28:04,737 INFO L125 PetriNetUnfolderBase]: For 125919/125921 co-relation queries the response was YES. [2024-06-27 22:28:04,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109370 conditions, 32498 events. 21575/32498 cut-off events. For 125919/125921 co-relation queries the response was YES. Maximal size of possible extension queue 1154. Compared 230935 event pairs, 12823 based on Foata normal form. 4/31832 useless extension candidates. Maximal degree in co-relation 109330. Up to 28782 conditions per place. [2024-06-27 22:28:05,112 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 131 selfloop transitions, 13 changer transitions 0/157 dead transitions. [2024-06-27 22:28:05,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 157 transitions, 1505 flow [2024-06-27 22:28:05,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:28:05,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:28:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-06-27 22:28:05,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5614035087719298 [2024-06-27 22:28:05,114 INFO L175 Difference]: Start difference. First operand has 104 places, 128 transitions, 1103 flow. Second operand 5 states and 160 transitions. [2024-06-27 22:28:05,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 157 transitions, 1505 flow [2024-06-27 22:28:05,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 157 transitions, 1427 flow, removed 16 selfloop flow, removed 6 redundant places. [2024-06-27 22:28:05,353 INFO L231 Difference]: Finished difference. Result has 103 places, 133 transitions, 1121 flow [2024-06-27 22:28:05,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=1025, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1121, PETRI_PLACES=103, PETRI_TRANSITIONS=133} [2024-06-27 22:28:05,354 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 38 predicate places. [2024-06-27 22:28:05,354 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 133 transitions, 1121 flow [2024-06-27 22:28:05,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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 22:28:05,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:28:05,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:28:05,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 22:28:05,355 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:28:05,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:28:05,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1028370374, now seen corresponding path program 1 times [2024-06-27 22:28:05,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:28:05,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459625917] [2024-06-27 22:28:05,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:28:05,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:28:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:28:07,059 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 22:28:07,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:28:07,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459625917] [2024-06-27 22:28:07,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459625917] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:28:07,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:28:07,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 22:28:07,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542927987] [2024-06-27 22:28:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:28:07,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 22:28:07,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:28:07,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 22:28:07,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 22:28:07,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 22:28:07,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 133 transitions, 1121 flow. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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 22:28:07,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:28:07,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 22:28:07,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:28:11,415 INFO L124 PetriNetUnfolderBase]: 25619/37283 cut-off events. [2024-06-27 22:28:11,415 INFO L125 PetriNetUnfolderBase]: For 169445/169537 co-relation queries the response was YES. [2024-06-27 22:28:11,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133077 conditions, 37283 events. 25619/37283 cut-off events. For 169445/169537 co-relation queries the response was YES. Maximal size of possible extension queue 1409. Compared 258946 event pairs, 11356 based on Foata normal form. 98/36803 useless extension candidates. Maximal degree in co-relation 133037. Up to 31635 conditions per place. [2024-06-27 22:28:11,710 INFO L140 encePairwiseOnDemand]: 41/57 looper letters, 153 selfloop transitions, 67 changer transitions 0/234 dead transitions. [2024-06-27 22:28:11,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 234 transitions, 2020 flow [2024-06-27 22:28:11,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 22:28:11,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 22:28:11,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 313 transitions. [2024-06-27 22:28:11,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6101364522417154 [2024-06-27 22:28:11,712 INFO L175 Difference]: Start difference. First operand has 103 places, 133 transitions, 1121 flow. Second operand 9 states and 313 transitions. [2024-06-27 22:28:11,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 234 transitions, 2020 flow [2024-06-27 22:28:11,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 234 transitions, 1978 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-06-27 22:28:11,853 INFO L231 Difference]: Finished difference. Result has 111 places, 142 transitions, 1362 flow [2024-06-27 22:28:11,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=1079, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1362, PETRI_PLACES=111, PETRI_TRANSITIONS=142} [2024-06-27 22:28:11,853 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 46 predicate places. [2024-06-27 22:28:11,854 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 142 transitions, 1362 flow [2024-06-27 22:28:11,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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 22:28:11,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:28:11,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:28:11,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 22:28:11,854 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:28:11,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:28:11,855 INFO L85 PathProgramCache]: Analyzing trace with hash -603696876, now seen corresponding path program 2 times [2024-06-27 22:28:11,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:28:11,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231031475] [2024-06-27 22:28:11,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:28:11,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:28:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:28:13,238 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 22:28:13,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:28:13,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231031475] [2024-06-27 22:28:13,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231031475] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:28:13,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:28:13,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 22:28:13,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845022027] [2024-06-27 22:28:13,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:28:13,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 22:28:13,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:28:13,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 22:28:13,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 22:28:13,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 22:28:13,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 142 transitions, 1362 flow. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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 22:28:13,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:28:13,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 22:28:13,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:28:18,189 INFO L124 PetriNetUnfolderBase]: 26685/38452 cut-off events. [2024-06-27 22:28:18,190 INFO L125 PetriNetUnfolderBase]: For 227133/227239 co-relation queries the response was YES. [2024-06-27 22:28:18,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146906 conditions, 38452 events. 26685/38452 cut-off events. For 227133/227239 co-relation queries the response was YES. Maximal size of possible extension queue 1495. Compared 265952 event pairs, 12137 based on Foata normal form. 86/38097 useless extension candidates. Maximal degree in co-relation 146862. Up to 33993 conditions per place. [2024-06-27 22:28:18,451 INFO L140 encePairwiseOnDemand]: 40/57 looper letters, 148 selfloop transitions, 68 changer transitions 0/230 dead transitions. [2024-06-27 22:28:18,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 230 transitions, 2129 flow [2024-06-27 22:28:18,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 22:28:18,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 22:28:18,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 306 transitions. [2024-06-27 22:28:18,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2024-06-27 22:28:18,468 INFO L175 Difference]: Start difference. First operand has 111 places, 142 transitions, 1362 flow. Second operand 9 states and 306 transitions. [2024-06-27 22:28:18,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 230 transitions, 2129 flow [2024-06-27 22:28:18,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 230 transitions, 2024 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-06-27 22:28:18,731 INFO L231 Difference]: Finished difference. Result has 116 places, 146 transitions, 1475 flow [2024-06-27 22:28:18,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=1259, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1475, PETRI_PLACES=116, PETRI_TRANSITIONS=146} [2024-06-27 22:28:18,732 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 51 predicate places. [2024-06-27 22:28:18,732 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 146 transitions, 1475 flow [2024-06-27 22:28:18,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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 22:28:18,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:28:18,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:28:18,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-27 22:28:18,733 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:28:18,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:28:18,734 INFO L85 PathProgramCache]: Analyzing trace with hash -473802314, now seen corresponding path program 3 times [2024-06-27 22:28:18,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:28:18,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920626092] [2024-06-27 22:28:18,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:28:18,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:28:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:28:19,755 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 22:28:19,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:28:19,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920626092] [2024-06-27 22:28:19,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920626092] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:28:19,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:28:19,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:28:19,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383074557] [2024-06-27 22:28:19,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:28:19,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:28:19,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:28:19,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:28:19,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:28:19,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 57 [2024-06-27 22:28:19,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 146 transitions, 1475 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 22:28:19,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:28:19,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 57 [2024-06-27 22:28:19,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:28:24,143 INFO L124 PetriNetUnfolderBase]: 19708/31753 cut-off events. [2024-06-27 22:28:24,143 INFO L125 PetriNetUnfolderBase]: For 232290/234463 co-relation queries the response was YES. [2024-06-27 22:28:24,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129029 conditions, 31753 events. 19708/31753 cut-off events. For 232290/234463 co-relation queries the response was YES. Maximal size of possible extension queue 1341. Compared 253942 event pairs, 5865 based on Foata normal form. 417/30859 useless extension candidates. Maximal degree in co-relation 128983. Up to 23616 conditions per place. [2024-06-27 22:28:24,470 INFO L140 encePairwiseOnDemand]: 42/57 looper letters, 121 selfloop transitions, 85 changer transitions 0/243 dead transitions. [2024-06-27 22:28:24,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 243 transitions, 2506 flow [2024-06-27 22:28:24,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 22:28:24,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 22:28:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 327 transitions. [2024-06-27 22:28:24,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6374269005847953 [2024-06-27 22:28:24,472 INFO L175 Difference]: Start difference. First operand has 116 places, 146 transitions, 1475 flow. Second operand 9 states and 327 transitions. [2024-06-27 22:28:24,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 243 transitions, 2506 flow [2024-06-27 22:28:24,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 243 transitions, 2343 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-06-27 22:28:24,861 INFO L231 Difference]: Finished difference. Result has 123 places, 165 transitions, 1866 flow [2024-06-27 22:28:24,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=1312, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1866, PETRI_PLACES=123, PETRI_TRANSITIONS=165} [2024-06-27 22:28:24,862 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 58 predicate places. [2024-06-27 22:28:24,863 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 165 transitions, 1866 flow [2024-06-27 22:28:24,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 22:28:24,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:28:24,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:28:24,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-27 22:28:24,863 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:28:24,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:28:24,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1500986868, now seen corresponding path program 1 times [2024-06-27 22:28:24,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:28:24,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067447927] [2024-06-27 22:28:24,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:28:24,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:28:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat