./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix004.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-nonrel/mix004.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/mix004.opt.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/mix004.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 [2024-06-28 01:19:06,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 01:19:06,429 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 01:19:06,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 01:19:06,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 01:19:06,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 01:19:06,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 01:19:06,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 01:19:06,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 01:19:06,469 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 01:19:06,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 01:19:06,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 01:19:06,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 01:19:06,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 01:19:06,472 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 01:19:06,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 01:19:06,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 01:19:06,473 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 01:19:06,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 01:19:06,473 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 01:19:06,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 01:19:06,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 01:19:06,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 01:19:06,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 01:19:06,474 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 01:19:06,475 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 01:19:06,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 01:19:06,475 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 01:19:06,476 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 01:19:06,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 01:19:06,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 01:19:06,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 01:19:06,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:19:06,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 01:19:06,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 01:19:06,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 01:19:06,478 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 01:19:06,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 01:19:06,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 01:19:06,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 01:19:06,479 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 01:19:06,479 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 01:19:06,479 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 01:19:06,479 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 01:19:06,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 01:19:06,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 01:19:06,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 01:19:06,731 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 01:19:06,731 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 01:19:06,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix004.opt.i [2024-06-28 01:19:07,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 01:19:08,049 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 01:19:08,050 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix004.opt.i [2024-06-28 01:19:08,063 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/716488263/a404ff8fa6a5413db0b4cd3106c9fe78/FLAG9443a9929 [2024-06-28 01:19:08,088 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/716488263/a404ff8fa6a5413db0b4cd3106c9fe78 [2024-06-28 01:19:08,090 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 01:19:08,091 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 01:19:08,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/mix004.opt.yml/witness.yml [2024-06-28 01:19:08,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 01:19:08,304 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 01:19:08,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 01:19:08,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 01:19:08,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 01:19:08,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:19:08" (1/2) ... [2024-06-28 01:19:08,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d61a112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:08, skipping insertion in model container [2024-06-28 01:19:08,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:19:08" (1/2) ... [2024-06-28 01:19:08,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f74dbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:08, skipping insertion in model container [2024-06-28 01:19:08,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:19:08" (2/2) ... [2024-06-28 01:19:08,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d61a112 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08, skipping insertion in model container [2024-06-28 01:19:08,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:19:08" (2/2) ... [2024-06-28 01:19:08,313 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 01:19:08,423 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 01:19:08,425 INFO L97 edCorrectnessWitness]: Location invariant before [L878-L878] ((((((((((((((((((((((((! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || ((((((((((((((((((((((((0 <= __unbuffered_cnt && z$flush_delayed == (_Bool)0) && z$r_buff0_thd0 == (_Bool)0) && z$r_buff0_thd1 == (_Bool)0) && z$r_buff0_thd2 == (_Bool)0) && z$r_buff0_thd3 == (_Bool)0) && z$r_buff1_thd0 == (_Bool)0) && z$r_buff1_thd1 == (_Bool)0) && z$r_buff1_thd2 == (_Bool)0) && z$r_buff1_thd3 == (_Bool)0) && z$read_delayed == (_Bool)0) && z$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0) [2024-06-28 01:19:08,425 INFO L97 edCorrectnessWitness]: Location invariant before [L876-L876] ((((((((((((((((((((((((! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || ((((((((((((((((((((((((0 <= __unbuffered_cnt && z$flush_delayed == (_Bool)0) && z$r_buff0_thd0 == (_Bool)0) && z$r_buff0_thd1 == (_Bool)0) && z$r_buff0_thd2 == (_Bool)0) && z$r_buff0_thd3 == (_Bool)0) && z$r_buff1_thd0 == (_Bool)0) && z$r_buff1_thd1 == (_Bool)0) && z$r_buff1_thd2 == (_Bool)0) && z$r_buff1_thd3 == (_Bool)0) && z$read_delayed == (_Bool)0) && z$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0) [2024-06-28 01:19:08,425 INFO L97 edCorrectnessWitness]: Location invariant before [L879-L879] ((((((((((((((((((((((((! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || ((((((((((((((((((((((((0 <= __unbuffered_cnt && z$flush_delayed == (_Bool)0) && z$r_buff0_thd0 == (_Bool)0) && z$r_buff0_thd1 == (_Bool)0) && z$r_buff0_thd2 == (_Bool)0) && z$r_buff0_thd3 == (_Bool)0) && z$r_buff1_thd0 == (_Bool)0) && z$r_buff1_thd1 == (_Bool)0) && z$r_buff1_thd2 == (_Bool)0) && z$r_buff1_thd3 == (_Bool)0) && z$read_delayed == (_Bool)0) && z$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0) [2024-06-28 01:19:08,426 INFO L97 edCorrectnessWitness]: Location invariant before [L874-L874] ((((((((((((((((((((((((! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || ((((((((((((((((((((((((0 <= __unbuffered_cnt && z$flush_delayed == (_Bool)0) && z$r_buff0_thd0 == (_Bool)0) && z$r_buff0_thd1 == (_Bool)0) && z$r_buff0_thd2 == (_Bool)0) && z$r_buff0_thd3 == (_Bool)0) && z$r_buff1_thd0 == (_Bool)0) && z$r_buff1_thd1 == (_Bool)0) && z$r_buff1_thd2 == (_Bool)0) && z$r_buff1_thd3 == (_Bool)0) && z$read_delayed == (_Bool)0) && z$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0) [2024-06-28 01:19:08,426 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 01:19:08,427 INFO L106 edCorrectnessWitness]: ghost_update [L872-L872] multithreaded = 1; [2024-06-28 01:19:08,466 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 01:19:08,629 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/mix004.opt.i[944,957] [2024-06-28 01:19:08,759 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:19:08,774 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-28 01:19:08,815 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/mix004.opt.i[944,957] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:19:08,896 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:19:08,925 INFO L206 MainTranslator]: Completed translation [2024-06-28 01:19:08,926 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08 WrapperNode [2024-06-28 01:19:08,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 01:19:08,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 01:19:08,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 01:19:08,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 01:19:08,933 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 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:08,947 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 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:08,995 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 159 [2024-06-28 01:19:08,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 01:19:08,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 01:19:08,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 01:19:08,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 01:19:09,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:09,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:09,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:09,045 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]. [2024-06-28 01:19:09,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:09,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:09,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:09,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:09,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:09,079 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:09,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 01:19:09,087 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 01:19:09,087 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 01:19:09,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 01:19:09,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (1/1) ... [2024-06-28 01:19:09,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:19:09,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:19:09,114 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) [2024-06-28 01:19:09,124 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 [2024-06-28 01:19:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-28 01:19:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 01:19:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-28 01:19:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-28 01:19:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-28 01:19:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-28 01:19:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-28 01:19:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-28 01:19:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-28 01:19:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-28 01:19:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 01:19:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-28 01:19:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 01:19:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 01:19:09,153 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 01:19:09,264 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 01:19:09,266 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 01:19:09,667 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 01:19:09,668 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 01:19:09,820 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 01:19:09,821 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 01:19:09,821 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:19:09 BoogieIcfgContainer [2024-06-28 01:19:09,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 01:19:09,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 01:19:09,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 01:19:09,826 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 01:19:09,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 01:19:08" (1/4) ... [2024-06-28 01:19:09,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ed7712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:19:09, skipping insertion in model container [2024-06-28 01:19:09,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:19:08" (2/4) ... [2024-06-28 01:19:09,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ed7712 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:19:09, skipping insertion in model container [2024-06-28 01:19:09,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:08" (3/4) ... [2024-06-28 01:19:09,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ed7712 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:19:09, skipping insertion in model container [2024-06-28 01:19:09,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:19:09" (4/4) ... [2024-06-28 01:19:09,830 INFO L112 eAbstractionObserver]: Analyzing ICFG mix004.opt.i [2024-06-28 01:19:09,843 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 01:19:09,844 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-28 01:19:09,844 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 01:19:09,889 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-28 01:19:09,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 59 transitions, 134 flow [2024-06-28 01:19:09,954 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-06-28 01:19:09,955 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:19:09,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 106 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-06-28 01:19:09,958 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 59 transitions, 134 flow [2024-06-28 01:19:09,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 55 transitions, 122 flow [2024-06-28 01:19:09,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 01:19:10,012 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;@421938c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 01:19:10,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-28 01:19:10,017 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 01:19:10,017 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-28 01:19:10,018 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:19:10,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:10,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 01:19:10,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:10,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:10,025 INFO L85 PathProgramCache]: Analyzing trace with hash 395648284, now seen corresponding path program 1 times [2024-06-28 01:19:10,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:10,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685706060] [2024-06-28 01:19:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:10,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:11,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:11,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:11,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685706060] [2024-06-28 01:19:11,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685706060] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:11,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:11,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:19:11,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888152999] [2024-06-28 01:19:11,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:11,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:19:11,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:11,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:19:11,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:19:11,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-06-28 01:19:11,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-06-28 01:19:11,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:11,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-06-28 01:19:11,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:12,966 INFO L124 PetriNetUnfolderBase]: 12650/19244 cut-off events. [2024-06-28 01:19:12,967 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2024-06-28 01:19:13,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36419 conditions, 19244 events. 12650/19244 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 136851 event pairs, 10423 based on Foata normal form. 481/18383 useless extension candidates. Maximal degree in co-relation 36406. Up to 16952 conditions per place. [2024-06-28 01:19:13,085 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 49 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2024-06-28 01:19:13,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 277 flow [2024-06-28 01:19:13,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:19:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:19:13,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 127 transitions. [2024-06-28 01:19:13,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7175141242937854 [2024-06-28 01:19:13,096 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 122 flow. Second operand 3 states and 127 transitions. [2024-06-28 01:19:13,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 277 flow [2024-06-28 01:19:13,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 270 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-28 01:19:13,101 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 162 flow [2024-06-28 01:19:13,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2024-06-28 01:19:13,105 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-06-28 01:19:13,105 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 162 flow [2024-06-28 01:19:13,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-06-28 01:19:13,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:13,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:13,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 01:19:13,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:13,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:13,107 INFO L85 PathProgramCache]: Analyzing trace with hash -2034027013, now seen corresponding path program 1 times [2024-06-28 01:19:13,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:13,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735356555] [2024-06-28 01:19:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:13,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:13,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:13,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735356555] [2024-06-28 01:19:13,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735356555] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:13,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:13,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:19:13,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084120645] [2024-06-28 01:19:13,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:13,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:19:13,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:13,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:19:13,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:19:13,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 59 [2024-06-28 01:19:13,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-06-28 01:19:13,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:13,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 59 [2024-06-28 01:19:13,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:15,647 INFO L124 PetriNetUnfolderBase]: 14407/21743 cut-off events. [2024-06-28 01:19:15,648 INFO L125 PetriNetUnfolderBase]: For 3882/3882 co-relation queries the response was YES. [2024-06-28 01:19:15,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46508 conditions, 21743 events. 14407/21743 cut-off events. For 3882/3882 co-relation queries the response was YES. Maximal size of possible extension queue 927. Compared 154634 event pairs, 10359 based on Foata normal form. 4/20502 useless extension candidates. Maximal degree in co-relation 46496. Up to 19236 conditions per place. [2024-06-28 01:19:15,740 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 64 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2024-06-28 01:19:15,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 398 flow [2024-06-28 01:19:15,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:19:15,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:19:15,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 163 transitions. [2024-06-28 01:19:15,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.690677966101695 [2024-06-28 01:19:15,743 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 162 flow. Second operand 4 states and 163 transitions. [2024-06-28 01:19:15,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 398 flow [2024-06-28 01:19:15,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:19:15,745 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 220 flow [2024-06-28 01:19:15,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=220, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2024-06-28 01:19:15,746 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-06-28 01:19:15,746 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 220 flow [2024-06-28 01:19:15,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-06-28 01:19:15,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:15,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:15,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 01:19:15,747 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:15,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:15,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1996802144, now seen corresponding path program 1 times [2024-06-28 01:19:15,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:15,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535664738] [2024-06-28 01:19:15,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:15,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:16,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:16,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535664738] [2024-06-28 01:19:16,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535664738] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:16,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:16,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:19:16,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408443837] [2024-06-28 01:19:16,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:16,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:19:16,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:16,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:19:16,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:19:16,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 59 [2024-06-28 01:19:16,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:19:16,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:16,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 59 [2024-06-28 01:19:16,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:19,008 INFO L124 PetriNetUnfolderBase]: 18290/27433 cut-off events. [2024-06-28 01:19:19,009 INFO L125 PetriNetUnfolderBase]: For 12928/12928 co-relation queries the response was YES. [2024-06-28 01:19:19,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64571 conditions, 27433 events. 18290/27433 cut-off events. For 12928/12928 co-relation queries the response was YES. Maximal size of possible extension queue 1115. Compared 195971 event pairs, 10514 based on Foata normal form. 8/25889 useless extension candidates. Maximal degree in co-relation 64557. Up to 24240 conditions per place. [2024-06-28 01:19:19,153 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 90 selfloop transitions, 20 changer transitions 0/126 dead transitions. [2024-06-28 01:19:19,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 126 transitions, 618 flow [2024-06-28 01:19:19,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:19:19,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:19:19,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 234 transitions. [2024-06-28 01:19:19,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6610169491525424 [2024-06-28 01:19:19,156 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 220 flow. Second operand 6 states and 234 transitions. [2024-06-28 01:19:19,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 126 transitions, 618 flow [2024-06-28 01:19:19,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 126 transitions, 582 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-06-28 01:19:19,159 INFO L231 Difference]: Finished difference. Result has 73 places, 72 transitions, 299 flow [2024-06-28 01:19:19,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=299, PETRI_PLACES=73, PETRI_TRANSITIONS=72} [2024-06-28 01:19:19,160 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 6 predicate places. [2024-06-28 01:19:19,160 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 72 transitions, 299 flow [2024-06-28 01:19:19,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:19:19,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:19,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:19,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 01:19:19,161 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:19,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:19,161 INFO L85 PathProgramCache]: Analyzing trace with hash 621741946, now seen corresponding path program 1 times [2024-06-28 01:19:19,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:19,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207948319] [2024-06-28 01:19:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:19,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:20,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:20,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:20,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207948319] [2024-06-28 01:19:20,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207948319] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:20,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:20,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:19:20,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13955280] [2024-06-28 01:19:20,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:20,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:19:20,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:20,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:19:20,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:19:20,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-28 01:19:20,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 72 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 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) [2024-06-28 01:19:20,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:20,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-28 01:19:20,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:22,605 INFO L124 PetriNetUnfolderBase]: 18280/25558 cut-off events. [2024-06-28 01:19:22,606 INFO L125 PetriNetUnfolderBase]: For 21218/21218 co-relation queries the response was YES. [2024-06-28 01:19:22,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69136 conditions, 25558 events. 18280/25558 cut-off events. For 21218/21218 co-relation queries the response was YES. Maximal size of possible extension queue 984. Compared 162479 event pairs, 8075 based on Foata normal form. 3/24665 useless extension candidates. Maximal degree in co-relation 69119. Up to 24317 conditions per place. [2024-06-28 01:19:22,764 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 77 selfloop transitions, 12 changer transitions 0/104 dead transitions. [2024-06-28 01:19:22,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 104 transitions, 571 flow [2024-06-28 01:19:22,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:19:22,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:19:22,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-06-28 01:19:22,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5864406779661017 [2024-06-28 01:19:22,767 INFO L175 Difference]: Start difference. First operand has 73 places, 72 transitions, 299 flow. Second operand 5 states and 173 transitions. [2024-06-28 01:19:22,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 104 transitions, 571 flow [2024-06-28 01:19:22,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 104 transitions, 522 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-06-28 01:19:22,778 INFO L231 Difference]: Finished difference. Result has 75 places, 77 transitions, 326 flow [2024-06-28 01:19:22,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=326, PETRI_PLACES=75, PETRI_TRANSITIONS=77} [2024-06-28 01:19:22,780 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 8 predicate places. [2024-06-28 01:19:22,780 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 77 transitions, 326 flow [2024-06-28 01:19:22,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 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) [2024-06-28 01:19:22,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:22,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:22,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 01:19:22,781 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:22,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:22,782 INFO L85 PathProgramCache]: Analyzing trace with hash 487890969, now seen corresponding path program 1 times [2024-06-28 01:19:22,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:22,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352516661] [2024-06-28 01:19:22,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:22,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:23,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:23,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352516661] [2024-06-28 01:19:23,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352516661] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:23,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:23,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:19:23,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669081615] [2024-06-28 01:19:23,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:23,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-28 01:19:23,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:23,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-28 01:19:23,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-28 01:19:23,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-28 01:19:23,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 77 transitions, 326 flow. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2024-06-28 01:19:23,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:23,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-28 01:19:23,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:26,816 INFO L124 PetriNetUnfolderBase]: 20909/28421 cut-off events. [2024-06-28 01:19:26,817 INFO L125 PetriNetUnfolderBase]: For 37007/37029 co-relation queries the response was YES. [2024-06-28 01:19:26,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83975 conditions, 28421 events. 20909/28421 cut-off events. For 37007/37029 co-relation queries the response was YES. Maximal size of possible extension queue 1074. Compared 174030 event pairs, 8924 based on Foata normal form. 5/27601 useless extension candidates. Maximal degree in co-relation 83956. Up to 27675 conditions per place. [2024-06-28 01:19:27,056 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 92 selfloop transitions, 26 changer transitions 0/132 dead transitions. [2024-06-28 01:19:27,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 132 transitions, 768 flow [2024-06-28 01:19:27,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:19:27,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:19:27,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 212 transitions. [2024-06-28 01:19:27,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5988700564971752 [2024-06-28 01:19:27,058 INFO L175 Difference]: Start difference. First operand has 75 places, 77 transitions, 326 flow. Second operand 6 states and 212 transitions. [2024-06-28 01:19:27,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 132 transitions, 768 flow [2024-06-28 01:19:27,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 132 transitions, 730 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-06-28 01:19:27,075 INFO L231 Difference]: Finished difference. Result has 78 places, 87 transitions, 438 flow [2024-06-28 01:19:27,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=78, PETRI_TRANSITIONS=87} [2024-06-28 01:19:27,077 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 11 predicate places. [2024-06-28 01:19:27,078 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 87 transitions, 438 flow [2024-06-28 01:19:27,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2024-06-28 01:19:27,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:27,078 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:27,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 01:19:27,078 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:27,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:27,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1438277499, now seen corresponding path program 2 times [2024-06-28 01:19:27,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:27,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213203149] [2024-06-28 01:19:27,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:27,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:27,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:27,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213203149] [2024-06-28 01:19:27,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213203149] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:27,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:27,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:19:27,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993149161] [2024-06-28 01:19:27,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:27,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-28 01:19:27,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:27,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-28 01:19:27,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-28 01:19:28,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-28 01:19:28,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 87 transitions, 438 flow. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2024-06-28 01:19:28,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:28,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-28 01:19:28,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:31,147 INFO L124 PetriNetUnfolderBase]: 20899/28433 cut-off events. [2024-06-28 01:19:31,147 INFO L125 PetriNetUnfolderBase]: For 52942/52994 co-relation queries the response was YES. [2024-06-28 01:19:31,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90754 conditions, 28433 events. 20899/28433 cut-off events. For 52942/52994 co-relation queries the response was YES. Maximal size of possible extension queue 1074. Compared 174311 event pairs, 8927 based on Foata normal form. 35/27645 useless extension candidates. Maximal degree in co-relation 90734. Up to 27665 conditions per place. [2024-06-28 01:19:31,300 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 86 selfloop transitions, 26 changer transitions 0/126 dead transitions. [2024-06-28 01:19:31,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 126 transitions, 754 flow [2024-06-28 01:19:31,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:19:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:19:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-06-28 01:19:31,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5819209039548022 [2024-06-28 01:19:31,302 INFO L175 Difference]: Start difference. First operand has 78 places, 87 transitions, 438 flow. Second operand 6 states and 206 transitions. [2024-06-28 01:19:31,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 126 transitions, 754 flow [2024-06-28 01:19:31,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 126 transitions, 692 flow, removed 25 selfloop flow, removed 2 redundant places. [2024-06-28 01:19:31,333 INFO L231 Difference]: Finished difference. Result has 82 places, 87 transitions, 440 flow [2024-06-28 01:19:31,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=440, PETRI_PLACES=82, PETRI_TRANSITIONS=87} [2024-06-28 01:19:31,334 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 15 predicate places. [2024-06-28 01:19:31,334 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 87 transitions, 440 flow [2024-06-28 01:19:31,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2024-06-28 01:19:31,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:31,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:31,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 01:19:31,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:31,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:31,335 INFO L85 PathProgramCache]: Analyzing trace with hash -841604709, now seen corresponding path program 1 times [2024-06-28 01:19:31,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:31,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369720800] [2024-06-28 01:19:31,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:31,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:32,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:32,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369720800] [2024-06-28 01:19:32,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369720800] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:32,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:32,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-28 01:19:32,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838806509] [2024-06-28 01:19:32,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:32,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-28 01:19:32,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:32,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-28 01:19:32,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-28 01:19:32,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-28 01:19:32,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 87 transitions, 440 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-06-28 01:19:32,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:32,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-28 01:19:32,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:35,710 INFO L124 PetriNetUnfolderBase]: 21098/28735 cut-off events. [2024-06-28 01:19:35,710 INFO L125 PetriNetUnfolderBase]: For 55903/55951 co-relation queries the response was YES. [2024-06-28 01:19:35,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91465 conditions, 28735 events. 21098/28735 cut-off events. For 55903/55951 co-relation queries the response was YES. Maximal size of possible extension queue 1075. Compared 176144 event pairs, 8912 based on Foata normal form. 7/27892 useless extension candidates. Maximal degree in co-relation 91443. Up to 27885 conditions per place. [2024-06-28 01:19:35,903 INFO L140 encePairwiseOnDemand]: 42/59 looper letters, 121 selfloop transitions, 40 changer transitions 0/175 dead transitions. [2024-06-28 01:19:35,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 175 transitions, 1062 flow [2024-06-28 01:19:35,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-28 01:19:35,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-28 01:19:35,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 281 transitions. [2024-06-28 01:19:35,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5953389830508474 [2024-06-28 01:19:35,905 INFO L175 Difference]: Start difference. First operand has 82 places, 87 transitions, 440 flow. Second operand 8 states and 281 transitions. [2024-06-28 01:19:35,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 175 transitions, 1062 flow [2024-06-28 01:19:35,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 175 transitions, 970 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-06-28 01:19:35,930 INFO L231 Difference]: Finished difference. Result has 86 places, 111 transitions, 632 flow [2024-06-28 01:19:35,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=632, PETRI_PLACES=86, PETRI_TRANSITIONS=111} [2024-06-28 01:19:35,932 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 19 predicate places. [2024-06-28 01:19:35,932 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 111 transitions, 632 flow [2024-06-28 01:19:35,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-06-28 01:19:35,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:35,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:35,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-28 01:19:35,933 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:35,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:35,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2055252205, now seen corresponding path program 2 times [2024-06-28 01:19:35,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:35,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462335021] [2024-06-28 01:19:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:35,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:36,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:36,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462335021] [2024-06-28 01:19:36,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462335021] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:36,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:36,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-28 01:19:36,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262399967] [2024-06-28 01:19:36,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:36,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-28 01:19:36,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-28 01:19:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-28 01:19:37,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-28 01:19:37,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 111 transitions, 632 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-06-28 01:19:37,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:37,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-28 01:19:37,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:39,978 INFO L124 PetriNetUnfolderBase]: 21147/28708 cut-off events. [2024-06-28 01:19:39,980 INFO L125 PetriNetUnfolderBase]: For 78075/78159 co-relation queries the response was YES. [2024-06-28 01:19:40,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99533 conditions, 28708 events. 21147/28708 cut-off events. For 78075/78159 co-relation queries the response was YES. Maximal size of possible extension queue 1070. Compared 173531 event pairs, 8857 based on Foata normal form. 11/27864 useless extension candidates. Maximal degree in co-relation 99509. Up to 27909 conditions per place. [2024-06-28 01:19:40,183 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 119 selfloop transitions, 42 changer transitions 0/175 dead transitions. [2024-06-28 01:19:40,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 175 transitions, 1192 flow [2024-06-28 01:19:40,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-28 01:19:40,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-28 01:19:40,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 245 transitions. [2024-06-28 01:19:40,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5932203389830508 [2024-06-28 01:19:40,187 INFO L175 Difference]: Start difference. First operand has 86 places, 111 transitions, 632 flow. Second operand 7 states and 245 transitions. [2024-06-28 01:19:40,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 175 transitions, 1192 flow [2024-06-28 01:19:40,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 175 transitions, 1116 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-06-28 01:19:40,247 INFO L231 Difference]: Finished difference. Result has 90 places, 116 transitions, 725 flow [2024-06-28 01:19:40,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=725, PETRI_PLACES=90, PETRI_TRANSITIONS=116} [2024-06-28 01:19:40,249 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 23 predicate places. [2024-06-28 01:19:40,249 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 116 transitions, 725 flow [2024-06-28 01:19:40,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-06-28 01:19:40,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:40,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:40,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-28 01:19:40,250 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:40,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:40,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2055247555, now seen corresponding path program 3 times [2024-06-28 01:19:40,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:40,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317314780] [2024-06-28 01:19:40,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:40,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:41,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:41,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317314780] [2024-06-28 01:19:41,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317314780] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:41,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:41,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-28 01:19:41,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870094566] [2024-06-28 01:19:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:41,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-28 01:19:41,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:41,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-28 01:19:41,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-28 01:19:41,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-28 01:19:41,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 116 transitions, 725 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-06-28 01:19:41,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:41,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-28 01:19:41,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:44,892 INFO L124 PetriNetUnfolderBase]: 21196/28808 cut-off events. [2024-06-28 01:19:44,892 INFO L125 PetriNetUnfolderBase]: For 102027/102095 co-relation queries the response was YES. [2024-06-28 01:19:44,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106723 conditions, 28808 events. 21196/28808 cut-off events. For 102027/102095 co-relation queries the response was YES. Maximal size of possible extension queue 1070. Compared 175464 event pairs, 8559 based on Foata normal form. 31/27971 useless extension candidates. Maximal degree in co-relation 106698. Up to 27830 conditions per place. [2024-06-28 01:19:45,100 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 105 selfloop transitions, 63 changer transitions 0/182 dead transitions. [2024-06-28 01:19:45,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 182 transitions, 1399 flow [2024-06-28 01:19:45,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-28 01:19:45,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-28 01:19:45,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 249 transitions. [2024-06-28 01:19:45,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6029055690072639 [2024-06-28 01:19:45,102 INFO L175 Difference]: Start difference. First operand has 90 places, 116 transitions, 725 flow. Second operand 7 states and 249 transitions. [2024-06-28 01:19:45,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 182 transitions, 1399 flow [2024-06-28 01:19:45,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 182 transitions, 1250 flow, removed 39 selfloop flow, removed 5 redundant places. [2024-06-28 01:19:45,152 INFO L231 Difference]: Finished difference. Result has 92 places, 126 transitions, 862 flow [2024-06-28 01:19:45,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=862, PETRI_PLACES=92, PETRI_TRANSITIONS=126} [2024-06-28 01:19:45,153 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 25 predicate places. [2024-06-28 01:19:45,153 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 126 transitions, 862 flow [2024-06-28 01:19:45,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-06-28 01:19:45,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:45,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:45,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-28 01:19:45,154 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:45,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:45,154 INFO L85 PathProgramCache]: Analyzing trace with hash 76935121, now seen corresponding path program 4 times [2024-06-28 01:19:45,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:45,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309514535] [2024-06-28 01:19:45,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:45,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:46,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:46,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:46,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309514535] [2024-06-28 01:19:46,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309514535] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:46,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:46,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-28 01:19:46,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657493871] [2024-06-28 01:19:46,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:46,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-28 01:19:46,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:46,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-28 01:19:46,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-28 01:19:46,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-28 01:19:46,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 126 transitions, 862 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-06-28 01:19:46,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:46,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-28 01:19:46,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:49,483 INFO L124 PetriNetUnfolderBase]: 21186/28818 cut-off events. [2024-06-28 01:19:49,484 INFO L125 PetriNetUnfolderBase]: For 102800/102881 co-relation queries the response was YES. [2024-06-28 01:19:49,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106672 conditions, 28818 events. 21186/28818 cut-off events. For 102800/102881 co-relation queries the response was YES. Maximal size of possible extension queue 1070. Compared 176157 event pairs, 8569 based on Foata normal form. 29/27973 useless extension candidates. Maximal degree in co-relation 106646. Up to 27820 conditions per place. [2024-06-28 01:19:49,733 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 100 selfloop transitions, 63 changer transitions 0/177 dead transitions. [2024-06-28 01:19:49,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 177 transitions, 1334 flow [2024-06-28 01:19:49,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-28 01:19:49,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-28 01:19:49,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 243 transitions. [2024-06-28 01:19:49,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5883777239709443 [2024-06-28 01:19:49,735 INFO L175 Difference]: Start difference. First operand has 92 places, 126 transitions, 862 flow. Second operand 7 states and 243 transitions. [2024-06-28 01:19:49,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 177 transitions, 1334 flow [2024-06-28 01:19:49,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 177 transitions, 1226 flow, removed 38 selfloop flow, removed 3 redundant places. [2024-06-28 01:19:49,801 INFO L231 Difference]: Finished difference. Result has 96 places, 126 transitions, 892 flow [2024-06-28 01:19:49,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=892, PETRI_PLACES=96, PETRI_TRANSITIONS=126} [2024-06-28 01:19:49,803 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 29 predicate places. [2024-06-28 01:19:49,803 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 126 transitions, 892 flow [2024-06-28 01:19:49,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-06-28 01:19:49,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:49,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:49,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-28 01:19:49,804 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:49,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:49,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1877869771, now seen corresponding path program 1 times [2024-06-28 01:19:49,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:49,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126969454] [2024-06-28 01:19:49,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:49,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat