./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix053.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/mix053.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/mix053.opt.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix053.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 22:28:58,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 22:28:58,581 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 22:28:58,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 22:28:58,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 22:28:58,609 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 22:28:58,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 22:28:58,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 22:28:58,612 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 22:28:58,614 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 22:28:58,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 22:28:58,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 22:28:58,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 22:28:58,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 22:28:58,618 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 22:28:58,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 22:28:58,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 22:28:58,618 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 22:28:58,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 22:28:58,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 22:28:58,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 22:28:58,619 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 22:28:58,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 22:28:58,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 22:28:58,620 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 22:28:58,620 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 22:28:58,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 22:28:58,620 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 22:28:58,621 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 22:28:58,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 22:28:58,622 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 22:28:58,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 22:28:58,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:28:58,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 22:28:58,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 22:28:58,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 22:28:58,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 22:28:58,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 22:28:58,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 22:28:58,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 22:28:58,624 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 22:28:58,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 22:28:58,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 22:28:58,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 22:28:58,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 22:28:58,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 22:28:58,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 22:28:58,879 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 22:28:58,879 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 22:28:58,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix053.opt.i [2024-06-27 22:28:59,877 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 22:29:00,094 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 22:29:00,094 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix053.opt.i [2024-06-27 22:29:00,105 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8633e99f3/ec7a0602e9af48468feff81083ced96e/FLAG6b944e653 [2024-06-27 22:29:00,460 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8633e99f3/ec7a0602e9af48468feff81083ced96e [2024-06-27 22:29:00,462 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 22:29:00,462 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 22:29:00,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix053.opt.yml/witness.yml [2024-06-27 22:29:00,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 22:29:00,528 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 22:29:00,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 22:29:00,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 22:29:00,534 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 22:29:00,535 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:29:00" (1/2) ... [2024-06-27 22:29:00,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbcb682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:29:00, skipping insertion in model container [2024-06-27 22:29:00,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:29:00" (1/2) ... [2024-06-27 22:29:00,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1cf2ad9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:29:00, skipping insertion in model container [2024-06-27 22:29:00,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:29:00" (2/2) ... [2024-06-27 22:29:00,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbcb682 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:29:00, skipping insertion in model container [2024-06-27 22:29:00,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:29:00" (2/2) ... [2024-06-27 22:29:00,539 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 22:29:00,563 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 22:29:00,564 INFO L97 edCorrectnessWitness]: Location invariant before [L847-L847] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((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_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 22:29:00,564 INFO L97 edCorrectnessWitness]: Location invariant before [L849-L849] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((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_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 22:29:00,564 INFO L97 edCorrectnessWitness]: Location invariant before [L852-L852] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((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_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 22:29:00,565 INFO L97 edCorrectnessWitness]: Location invariant before [L851-L851] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((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_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 22:29:00,565 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 22:29:00,565 INFO L106 edCorrectnessWitness]: ghost_update [L845-L845] multithreaded = 1; [2024-06-27 22:29:00,605 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 22:29:00,725 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/mix053.opt.i[944,957] [2024-06-27 22:29:00,898 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:29:00,914 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 22:29:00,950 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/mix053.opt.i[944,957] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 22:29:01,062 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:29:01,091 INFO L206 MainTranslator]: Completed translation [2024-06-27 22:29:01,091 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:29:01 WrapperNode [2024-06-27 22:29:01,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 22:29:01,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 22:29:01,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 22:29:01,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 22:29:01,098 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,139 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,176 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 133 [2024-06-27 22:29:01,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 22:29:01,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 22:29:01,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 22:29:01,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 22:29:01,185 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,185 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,189 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,213 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 22:29:01,219 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,219 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,231 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,240 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,243 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,250 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 22:29:01,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 22:29:01,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 22:29:01,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 22:29:01,262 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 10:29:01" (1/1) ... [2024-06-27 22:29:01,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:29:01,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 22:29:01,287 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 22:29:01,301 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 22:29:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 22:29:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 22:29:01,320 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 22:29:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 22:29:01,320 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 22:29:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 22:29:01,320 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 22:29:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 22:29:01,320 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 22:29:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 22:29:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 22:29:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 22:29:01,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 22:29:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 22:29:01,323 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 22:29:01,469 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 22:29:01,471 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 22:29:01,893 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 22:29:01,893 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 22:29:02,062 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 22:29:02,062 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 22:29:02,063 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:29:02 BoogieIcfgContainer [2024-06-27 22:29:02,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 22:29:02,065 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 22:29:02,065 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 22:29:02,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 22:29:02,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 10:29:00" (1/4) ... [2024-06-27 22:29:02,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b2ed27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 10:29:02, skipping insertion in model container [2024-06-27 22:29:02,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:29:00" (2/4) ... [2024-06-27 22:29:02,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b2ed27 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:29:02, skipping insertion in model container [2024-06-27 22:29:02,071 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 10:29:01" (3/4) ... [2024-06-27 22:29:02,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b2ed27 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:29:02, skipping insertion in model container [2024-06-27 22:29:02,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:29:02" (4/4) ... [2024-06-27 22:29:02,073 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053.opt.i [2024-06-27 22:29:02,086 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 22:29:02,086 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 22:29:02,087 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 22:29:02,143 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 22:29:02,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 57 transitions, 130 flow [2024-06-27 22:29:02,207 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-06-27 22:29:02,207 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:29:02,210 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 22:29:02,210 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 57 transitions, 130 flow [2024-06-27 22:29:02,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 53 transitions, 118 flow [2024-06-27 22:29:02,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 22:29:02,233 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;@20c8882c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 22:29:02,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 22:29:02,238 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 22:29:02,238 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 22:29:02,239 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:29:02,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:02,240 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 22:29:02,240 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 22:29:02,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:02,245 INFO L85 PathProgramCache]: Analyzing trace with hash 350496509, now seen corresponding path program 1 times [2024-06-27 22:29:02,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:02,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498455884] [2024-06-27 22:29:02,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:02,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:03,432 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 22:29:03,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:03,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498455884] [2024-06-27 22:29:03,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498455884] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:03,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:03,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 22:29:03,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275001867] [2024-06-27 22:29:03,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:03,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 22:29:03,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:03,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 22:29:03,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 22:29:03,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 57 [2024-06-27 22:29:03,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 22:29:03,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:03,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 57 [2024-06-27 22:29:03,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:05,825 INFO L124 PetriNetUnfolderBase]: 17565/26925 cut-off events. [2024-06-27 22:29:05,825 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-06-27 22:29:05,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50668 conditions, 26925 events. 17565/26925 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 1052. Compared 195524 event pairs, 14957 based on Foata normal form. 750/25861 useless extension candidates. Maximal degree in co-relation 50655. Up to 23410 conditions per place. [2024-06-27 22:29:05,987 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 50 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2024-06-27 22:29:05,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 271 flow [2024-06-27 22:29:05,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 22:29:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 22:29:05,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-06-27 22:29:05,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.695906432748538 [2024-06-27 22:29:05,997 INFO L175 Difference]: Start difference. First operand has 65 places, 53 transitions, 118 flow. Second operand 3 states and 119 transitions. [2024-06-27 22:29:05,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 271 flow [2024-06-27 22:29:05,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 70 transitions, 264 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 22:29:06,017 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 153 flow [2024-06-27 22:29:06,018 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 22:29:06,021 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -1 predicate places. [2024-06-27 22:29:06,021 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 153 flow [2024-06-27 22:29:06,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 22:29:06,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:06,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:06,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 22:29:06,022 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 22:29:06,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:06,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1819733788, now seen corresponding path program 1 times [2024-06-27 22:29:06,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:06,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296652432] [2024-06-27 22:29:06,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:06,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:06,796 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 22:29:06,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:06,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296652432] [2024-06-27 22:29:06,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296652432] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:06,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:06,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 22:29:06,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447180434] [2024-06-27 22:29:06,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:06,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 22:29:06,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:06,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 22:29:06,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 22:29:06,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57 [2024-06-27 22:29:06,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 22:29:06,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:06,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57 [2024-06-27 22:29:06,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:08,837 INFO L124 PetriNetUnfolderBase]: 20378/27413 cut-off events. [2024-06-27 22:29:08,838 INFO L125 PetriNetUnfolderBase]: For 4066/4066 co-relation queries the response was YES. [2024-06-27 22:29:08,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61598 conditions, 27413 events. 20378/27413 cut-off events. For 4066/4066 co-relation queries the response was YES. Maximal size of possible extension queue 1003. Compared 161355 event pairs, 12352 based on Foata normal form. 4/26520 useless extension candidates. Maximal degree in co-relation 61586. Up to 27058 conditions per place. [2024-06-27 22:29:09,223 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 65 selfloop transitions, 9 changer transitions 0/88 dead transitions. [2024-06-27 22:29:09,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 88 transitions, 383 flow [2024-06-27 22:29:09,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 22:29:09,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 22:29:09,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 151 transitions. [2024-06-27 22:29:09,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6622807017543859 [2024-06-27 22:29:09,230 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 153 flow. Second operand 4 states and 151 transitions. [2024-06-27 22:29:09,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 88 transitions, 383 flow [2024-06-27 22:29:09,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 88 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 22:29:09,233 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 203 flow [2024-06-27 22:29:09,233 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 22:29:09,234 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 2 predicate places. [2024-06-27 22:29:09,236 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 203 flow [2024-06-27 22:29:09,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 22:29:09,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:09,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:09,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 22:29:09,243 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 22:29:09,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:09,243 INFO L85 PathProgramCache]: Analyzing trace with hash 577173820, now seen corresponding path program 1 times [2024-06-27 22:29:09,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:09,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311647460] [2024-06-27 22:29:09,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:09,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:10,205 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 22:29:10,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:10,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311647460] [2024-06-27 22:29:10,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311647460] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:10,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:10,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:29:10,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567942806] [2024-06-27 22:29:10,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:10,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:29:10,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:10,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:29:10,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:29:10,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57 [2024-06-27 22:29:10,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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 22:29:10,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:10,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57 [2024-06-27 22:29:10,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:12,554 INFO L124 PetriNetUnfolderBase]: 20304/27378 cut-off events. [2024-06-27 22:29:12,555 INFO L125 PetriNetUnfolderBase]: For 11549/11549 co-relation queries the response was YES. [2024-06-27 22:29:12,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68085 conditions, 27378 events. 20304/27378 cut-off events. For 11549/11549 co-relation queries the response was YES. Maximal size of possible extension queue 1004. Compared 161727 event pairs, 9677 based on Foata normal form. 7/26527 useless extension candidates. Maximal degree in co-relation 68071. Up to 26819 conditions per place. [2024-06-27 22:29:12,922 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 87 selfloop transitions, 21 changer transitions 0/122 dead transitions. [2024-06-27 22:29:12,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 122 transitions, 617 flow [2024-06-27 22:29:12,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:29:12,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:29:12,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 199 transitions. [2024-06-27 22:29:12,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6982456140350877 [2024-06-27 22:29:12,925 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 203 flow. Second operand 5 states and 199 transitions. [2024-06-27 22:29:12,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 122 transitions, 617 flow [2024-06-27 22:29:12,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 122 transitions, 598 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-27 22:29:12,932 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 340 flow [2024-06-27 22:29:12,932 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 22:29:12,933 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2024-06-27 22:29:12,933 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 340 flow [2024-06-27 22:29:12,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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 22:29:12,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:12,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:12,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 22:29:12,934 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 22:29:12,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:12,934 INFO L85 PathProgramCache]: Analyzing trace with hash 607354079, now seen corresponding path program 1 times [2024-06-27 22:29:12,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:12,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369257745] [2024-06-27 22:29:12,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:12,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:13,744 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 22:29:13,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:13,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369257745] [2024-06-27 22:29:13,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369257745] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:13,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:13,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:29:13,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385584901] [2024-06-27 22:29:13,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:13,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:29:13,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:13,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:29:13,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:29:13,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57 [2024-06-27 22:29:13,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:29:13,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:13,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57 [2024-06-27 22:29:13,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:15,890 INFO L124 PetriNetUnfolderBase]: 20314/27415 cut-off events. [2024-06-27 22:29:15,890 INFO L125 PetriNetUnfolderBase]: For 38282/38290 co-relation queries the response was YES. [2024-06-27 22:29:15,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80583 conditions, 27415 events. 20314/27415 cut-off events. For 38282/38290 co-relation queries the response was YES. Maximal size of possible extension queue 1006. Compared 162242 event pairs, 7758 based on Foata normal form. 45/27435 useless extension candidates. Maximal degree in co-relation 80566. Up to 26727 conditions per place. [2024-06-27 22:29:16,101 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 98 selfloop transitions, 25 changer transitions 0/137 dead transitions. [2024-06-27 22:29:16,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 137 transitions, 784 flow [2024-06-27 22:29:16,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:29:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:29:16,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 230 transitions. [2024-06-27 22:29:16,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.672514619883041 [2024-06-27 22:29:16,103 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 340 flow. Second operand 6 states and 230 transitions. [2024-06-27 22:29:16,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 137 transitions, 784 flow [2024-06-27 22:29:16,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 137 transitions, 772 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 22:29:16,119 INFO L231 Difference]: Finished difference. Result has 77 places, 77 transitions, 419 flow [2024-06-27 22:29:16,119 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=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=419, PETRI_PLACES=77, PETRI_TRANSITIONS=77} [2024-06-27 22:29:16,120 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 12 predicate places. [2024-06-27 22:29:16,120 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 419 flow [2024-06-27 22:29:16,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:29:16,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:16,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:16,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 22:29:16,120 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 22:29:16,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:16,121 INFO L85 PathProgramCache]: Analyzing trace with hash -107846491, now seen corresponding path program 1 times [2024-06-27 22:29:16,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:16,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256625226] [2024-06-27 22:29:16,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:16,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:17,238 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 22:29:17,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:17,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256625226] [2024-06-27 22:29:17,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256625226] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:17,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:17,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:29:17,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5854489] [2024-06-27 22:29:17,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:17,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:29:17,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:17,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:29:17,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:29:17,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 22:29:17,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 419 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 22:29:17,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:17,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 22:29:17,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:20,295 INFO L124 PetriNetUnfolderBase]: 19860/27489 cut-off events. [2024-06-27 22:29:20,296 INFO L125 PetriNetUnfolderBase]: For 55070/55070 co-relation queries the response was YES. [2024-06-27 22:29:20,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87121 conditions, 27489 events. 19860/27489 cut-off events. For 55070/55070 co-relation queries the response was YES. Maximal size of possible extension queue 974. Compared 168380 event pairs, 8793 based on Foata normal form. 3/27471 useless extension candidates. Maximal degree in co-relation 87100. Up to 26401 conditions per place. [2024-06-27 22:29:20,537 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 80 selfloop transitions, 12 changer transitions 0/105 dead transitions. [2024-06-27 22:29:20,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 105 transitions, 679 flow [2024-06-27 22:29:20,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:29:20,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:29:20,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions. [2024-06-27 22:29:20,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2024-06-27 22:29:20,538 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 419 flow. Second operand 5 states and 162 transitions. [2024-06-27 22:29:20,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 105 transitions, 679 flow [2024-06-27 22:29:20,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 105 transitions, 608 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-06-27 22:29:20,564 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 404 flow [2024-06-27 22:29:20,564 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=404, PETRI_PLACES=79, PETRI_TRANSITIONS=79} [2024-06-27 22:29:20,565 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2024-06-27 22:29:20,565 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 404 flow [2024-06-27 22:29:20,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 22:29:20,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:20,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:20,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 22:29:20,566 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 22:29:20,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash 951496321, now seen corresponding path program 1 times [2024-06-27 22:29:20,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:20,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996626498] [2024-06-27 22:29:20,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:20,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:21,923 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 22:29:21,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:21,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996626498] [2024-06-27 22:29:21,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996626498] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:21,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:21,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:29:21,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022698593] [2024-06-27 22:29:21,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:21,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:29:21,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:21,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:29:21,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:29:22,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 22:29:22,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 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 22:29:22,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:22,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 22:29:22,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:24,699 INFO L124 PetriNetUnfolderBase]: 19985/27986 cut-off events. [2024-06-27 22:29:24,700 INFO L125 PetriNetUnfolderBase]: For 57176/57176 co-relation queries the response was YES. [2024-06-27 22:29:24,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88211 conditions, 27986 events. 19985/27986 cut-off events. For 57176/57176 co-relation queries the response was YES. Maximal size of possible extension queue 996. Compared 172800 event pairs, 8322 based on Foata normal form. 14/27974 useless extension candidates. Maximal degree in co-relation 88186. Up to 26129 conditions per place. [2024-06-27 22:29:24,909 INFO L140 encePairwiseOnDemand]: 43/57 looper letters, 117 selfloop transitions, 35 changer transitions 0/165 dead transitions. [2024-06-27 22:29:24,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 165 transitions, 1064 flow [2024-06-27 22:29:24,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 22:29:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 22:29:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 268 transitions. [2024-06-27 22:29:24,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5877192982456141 [2024-06-27 22:29:24,911 INFO L175 Difference]: Start difference. First operand has 79 places, 79 transitions, 404 flow. Second operand 8 states and 268 transitions. [2024-06-27 22:29:24,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 165 transitions, 1064 flow [2024-06-27 22:29:24,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 165 transitions, 1040 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 22:29:24,933 INFO L231 Difference]: Finished difference. Result has 88 places, 104 transitions, 688 flow [2024-06-27 22:29:24,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=688, PETRI_PLACES=88, PETRI_TRANSITIONS=104} [2024-06-27 22:29:24,934 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 23 predicate places. [2024-06-27 22:29:24,934 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 104 transitions, 688 flow [2024-06-27 22:29:24,934 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 22:29:24,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:24,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:24,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 22:29:24,935 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 22:29:24,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:24,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2042281916, now seen corresponding path program 1 times [2024-06-27 22:29:24,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:24,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122034010] [2024-06-27 22:29:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:24,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:26,128 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 22:29:26,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:26,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122034010] [2024-06-27 22:29:26,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122034010] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:26,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:26,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:29:26,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331342889] [2024-06-27 22:29:26,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:26,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:29:26,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:26,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:29:26,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:29:26,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 57 [2024-06-27 22:29:26,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 104 transitions, 688 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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 22:29:26,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:26,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 57 [2024-06-27 22:29:26,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:29,332 INFO L124 PetriNetUnfolderBase]: 23529/31676 cut-off events. [2024-06-27 22:29:29,332 INFO L125 PetriNetUnfolderBase]: For 108400/108414 co-relation queries the response was YES. [2024-06-27 22:29:29,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114949 conditions, 31676 events. 23529/31676 cut-off events. For 108400/108414 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 184419 event pairs, 10247 based on Foata normal form. 15/31661 useless extension candidates. Maximal degree in co-relation 114918. Up to 30887 conditions per place. [2024-06-27 22:29:29,619 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 120 selfloop transitions, 38 changer transitions 0/170 dead transitions. [2024-06-27 22:29:29,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 170 transitions, 1330 flow [2024-06-27 22:29:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:29:29,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:29:29,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 205 transitions. [2024-06-27 22:29:29,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5994152046783626 [2024-06-27 22:29:29,621 INFO L175 Difference]: Start difference. First operand has 88 places, 104 transitions, 688 flow. Second operand 6 states and 205 transitions. [2024-06-27 22:29:29,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 170 transitions, 1330 flow [2024-06-27 22:29:29,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 170 transitions, 1287 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-06-27 22:29:29,915 INFO L231 Difference]: Finished difference. Result has 95 places, 122 transitions, 878 flow [2024-06-27 22:29:29,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=95, PETRI_TRANSITIONS=122} [2024-06-27 22:29:29,916 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 30 predicate places. [2024-06-27 22:29:29,916 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 122 transitions, 878 flow [2024-06-27 22:29:29,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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 22:29:29,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:29,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:29,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 22:29:29,917 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 22:29:29,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:29,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2048918396, now seen corresponding path program 2 times [2024-06-27 22:29:29,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:29,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798332461] [2024-06-27 22:29:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:29,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:31,022 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 22:29:31,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:31,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798332461] [2024-06-27 22:29:31,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798332461] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:31,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:31,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:29:31,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140635988] [2024-06-27 22:29:31,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:31,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:29:31,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:31,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:29:31,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:29:31,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 57 [2024-06-27 22:29:31,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 122 transitions, 878 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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 22:29:31,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:31,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 57 [2024-06-27 22:29:31,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:34,516 INFO L124 PetriNetUnfolderBase]: 23514/31628 cut-off events. [2024-06-27 22:29:34,516 INFO L125 PetriNetUnfolderBase]: For 108025/108027 co-relation queries the response was YES. [2024-06-27 22:29:34,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114095 conditions, 31628 events. 23514/31628 cut-off events. For 108025/108027 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 183901 event pairs, 10249 based on Foata normal form. 5/31601 useless extension candidates. Maximal degree in co-relation 114058. Up to 30872 conditions per place. [2024-06-27 22:29:34,847 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 111 selfloop transitions, 42 changer transitions 0/165 dead transitions. [2024-06-27 22:29:34,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 165 transitions, 1344 flow [2024-06-27 22:29:34,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:29:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:29:34,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2024-06-27 22:29:34,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5847953216374269 [2024-06-27 22:29:34,849 INFO L175 Difference]: Start difference. First operand has 95 places, 122 transitions, 878 flow. Second operand 6 states and 200 transitions. [2024-06-27 22:29:34,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 165 transitions, 1344 flow [2024-06-27 22:29:35,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 165 transitions, 1302 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-06-27 22:29:35,130 INFO L231 Difference]: Finished difference. Result has 100 places, 123 transitions, 943 flow [2024-06-27 22:29:35,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=943, PETRI_PLACES=100, PETRI_TRANSITIONS=123} [2024-06-27 22:29:35,131 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 35 predicate places. [2024-06-27 22:29:35,131 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 123 transitions, 943 flow [2024-06-27 22:29:35,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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 22:29:35,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:35,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:35,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 22:29:35,132 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 22:29:35,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:35,132 INFO L85 PathProgramCache]: Analyzing trace with hash -557796446, now seen corresponding path program 3 times [2024-06-27 22:29:35,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:35,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522401897] [2024-06-27 22:29:35,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:35,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:35,996 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 22:29:35,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:35,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522401897] [2024-06-27 22:29:35,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522401897] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:35,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:35,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:29:35,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323272934] [2024-06-27 22:29:35,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:35,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:29:35,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:35,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:29:35,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:29:36,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 57 [2024-06-27 22:29:36,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 123 transitions, 943 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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 22:29:36,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:36,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 57 [2024-06-27 22:29:36,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:39,886 INFO L124 PetriNetUnfolderBase]: 23785/32004 cut-off events. [2024-06-27 22:29:39,887 INFO L125 PetriNetUnfolderBase]: For 119525/119541 co-relation queries the response was YES. [2024-06-27 22:29:40,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117218 conditions, 32004 events. 23785/32004 cut-off events. For 119525/119541 co-relation queries the response was YES. Maximal size of possible extension queue 1072. Compared 185914 event pairs, 10205 based on Foata normal form. 17/31996 useless extension candidates. Maximal degree in co-relation 117177. Up to 31079 conditions per place. [2024-06-27 22:29:40,150 INFO L140 encePairwiseOnDemand]: 41/57 looper letters, 126 selfloop transitions, 61 changer transitions 0/199 dead transitions. [2024-06-27 22:29:40,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 199 transitions, 1686 flow [2024-06-27 22:29:40,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 22:29:40,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 22:29:40,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2024-06-27 22:29:40,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2024-06-27 22:29:40,152 INFO L175 Difference]: Start difference. First operand has 100 places, 123 transitions, 943 flow. Second operand 7 states and 231 transitions. [2024-06-27 22:29:40,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 199 transitions, 1686 flow [2024-06-27 22:29:40,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 199 transitions, 1595 flow, removed 20 selfloop flow, removed 2 redundant places. [2024-06-27 22:29:40,512 INFO L231 Difference]: Finished difference. Result has 107 places, 146 transitions, 1272 flow [2024-06-27 22:29:40,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1272, PETRI_PLACES=107, PETRI_TRANSITIONS=146} [2024-06-27 22:29:40,513 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 42 predicate places. [2024-06-27 22:29:40,513 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 146 transitions, 1272 flow [2024-06-27 22:29:40,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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 22:29:40,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:40,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:40,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 22:29:40,514 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:29:40,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:40,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1960395092, now seen corresponding path program 1 times [2024-06-27 22:29:40,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:40,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63826318] [2024-06-27 22:29:40,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:40,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:41,935 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 22:29:41,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:41,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63826318] [2024-06-27 22:29:41,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63826318] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:41,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:41,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 22:29:41,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321851512] [2024-06-27 22:29:41,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:41,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 22:29:41,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:41,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 22:29:41,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-06-27 22:29:42,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 57 [2024-06-27 22:29:42,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 146 transitions, 1272 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 22:29:42,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:42,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 57 [2024-06-27 22:29:42,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:46,179 INFO L124 PetriNetUnfolderBase]: 25532/34557 cut-off events. [2024-06-27 22:29:46,179 INFO L125 PetriNetUnfolderBase]: For 147154/147156 co-relation queries the response was YES. [2024-06-27 22:29:46,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129755 conditions, 34557 events. 25532/34557 cut-off events. For 147154/147156 co-relation queries the response was YES. Maximal size of possible extension queue 1130. Compared 203442 event pairs, 8017 based on Foata normal form. 30/34487 useless extension candidates. Maximal degree in co-relation 129710. Up to 30245 conditions per place. [2024-06-27 22:29:46,435 INFO L140 encePairwiseOnDemand]: 41/57 looper letters, 177 selfloop transitions, 100 changer transitions 0/289 dead transitions. [2024-06-27 22:29:46,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 289 transitions, 2677 flow [2024-06-27 22:29:46,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-27 22:29:46,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-27 22:29:46,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 348 transitions. [2024-06-27 22:29:46,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6105263157894737 [2024-06-27 22:29:46,437 INFO L175 Difference]: Start difference. First operand has 107 places, 146 transitions, 1272 flow. Second operand 10 states and 348 transitions. [2024-06-27 22:29:46,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 289 transitions, 2677 flow [2024-06-27 22:29:46,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 289 transitions, 2623 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-06-27 22:29:46,704 INFO L231 Difference]: Finished difference. Result has 120 places, 192 transitions, 1949 flow [2024-06-27 22:29:46,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=1218, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1949, PETRI_PLACES=120, PETRI_TRANSITIONS=192} [2024-06-27 22:29:46,705 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 55 predicate places. [2024-06-27 22:29:46,705 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 192 transitions, 1949 flow [2024-06-27 22:29:46,705 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 22:29:46,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:46,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:46,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 22:29:46,706 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 22:29:46,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:46,706 INFO L85 PathProgramCache]: Analyzing trace with hash -218404080, now seen corresponding path program 2 times [2024-06-27 22:29:46,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:46,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418781570] [2024-06-27 22:29:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:46,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:48,239 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 22:29:48,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:48,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418781570] [2024-06-27 22:29:48,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418781570] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:48,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:48,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 22:29:48,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922044954] [2024-06-27 22:29:48,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:48,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 22:29:48,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:48,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 22:29:48,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-06-27 22:29:48,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 57 [2024-06-27 22:29:48,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 192 transitions, 1949 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 22:29:48,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:48,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 57 [2024-06-27 22:29:48,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:29:52,985 INFO L124 PetriNetUnfolderBase]: 26292/35619 cut-off events. [2024-06-27 22:29:52,985 INFO L125 PetriNetUnfolderBase]: For 264430/264432 co-relation queries the response was YES. [2024-06-27 22:29:53,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159789 conditions, 35619 events. 26292/35619 cut-off events. For 264430/264432 co-relation queries the response was YES. Maximal size of possible extension queue 1151. Compared 210193 event pairs, 7964 based on Foata normal form. 9/35520 useless extension candidates. Maximal degree in co-relation 159736. Up to 30705 conditions per place. [2024-06-27 22:29:53,492 INFO L140 encePairwiseOnDemand]: 41/57 looper letters, 172 selfloop transitions, 142 changer transitions 0/326 dead transitions. [2024-06-27 22:29:53,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 326 transitions, 3477 flow [2024-06-27 22:29:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-27 22:29:53,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-27 22:29:53,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 370 transitions. [2024-06-27 22:29:53,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5901116427432217 [2024-06-27 22:29:53,494 INFO L175 Difference]: Start difference. First operand has 120 places, 192 transitions, 1949 flow. Second operand 11 states and 370 transitions. [2024-06-27 22:29:53,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 326 transitions, 3477 flow [2024-06-27 22:29:54,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 326 transitions, 3393 flow, removed 40 selfloop flow, removed 1 redundant places. [2024-06-27 22:29:54,044 INFO L231 Difference]: Finished difference. Result has 133 places, 226 transitions, 2692 flow [2024-06-27 22:29:54,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=1865, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2692, PETRI_PLACES=133, PETRI_TRANSITIONS=226} [2024-06-27 22:29:54,045 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 68 predicate places. [2024-06-27 22:29:54,045 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 226 transitions, 2692 flow [2024-06-27 22:29:54,045 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 22:29:54,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:29:54,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:29:54,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 22:29:54,046 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 22:29:54,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:29:54,046 INFO L85 PathProgramCache]: Analyzing trace with hash -440286270, now seen corresponding path program 3 times [2024-06-27 22:29:54,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:29:54,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818019162] [2024-06-27 22:29:54,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:29:54,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:29:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:29:55,633 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 22:29:55,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:29:55,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818019162] [2024-06-27 22:29:55,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818019162] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:29:55,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:29:55,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 22:29:55,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496986490] [2024-06-27 22:29:55,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:29:55,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 22:29:55,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:29:55,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 22:29:55,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-06-27 22:29:55,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 57 [2024-06-27 22:29:55,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 226 transitions, 2692 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 22:29:55,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:29:55,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 57 [2024-06-27 22:29:55,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand