./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix026_power.opt_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/mix026_power.opt_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix026_power.opt_tso.opt.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/mix026_power.opt_tso.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 01:29:41,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 01:29:41,074 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 01:29:41,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 01:29:41,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 01:29:41,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 01:29:41,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 01:29:41,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 01:29:41,103 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 01:29:41,106 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 01:29:41,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 01:29:41,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 01:29:41,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 01:29:41,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 01:29:41,109 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 01:29:41,109 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 01:29:41,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 01:29:41,109 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 01:29:41,110 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 01:29:41,110 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 01:29:41,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 01:29:41,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 01:29:41,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 01:29:41,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 01:29:41,111 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 01:29:41,111 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 01:29:41,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 01:29:41,112 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 01:29:41,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 01:29:41,113 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 01:29:41,113 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 01:29:41,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 01:29:41,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:29:41,114 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 01:29:41,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 01:29:41,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 01:29:41,114 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 01:29:41,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 01:29:41,115 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 01:29:41,115 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 01:29:41,115 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 01:29:41,115 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 01:29:41,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 01:29:41,116 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 01:29:41,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 01:29:41,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 01:29:41,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 01:29:41,366 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 01:29:41,366 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 01:29:41,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix026_power.opt_tso.opt.i [2024-06-28 01:29:42,451 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 01:29:42,649 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 01:29:42,649 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026_power.opt_tso.opt.i [2024-06-28 01:29:42,677 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/456ce5284/800b942878a74e3493e6195da2172424/FLAG858f7dda5 [2024-06-28 01:29:42,689 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/456ce5284/800b942878a74e3493e6195da2172424 [2024-06-28 01:29:42,691 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 01:29:42,691 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 01:29:42,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/mix026_power.opt_tso.opt.yml/witness.yml [2024-06-28 01:29:42,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 01:29:42,875 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 01:29:42,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 01:29:42,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 01:29:42,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 01:29:42,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:29:42" (1/2) ... [2024-06-28 01:29:42,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@573ac35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:29:42, skipping insertion in model container [2024-06-28 01:29:42,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:29:42" (1/2) ... [2024-06-28 01:29:42,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d96a284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:29:42, skipping insertion in model container [2024-06-28 01:29:42,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:29:42" (2/2) ... [2024-06-28 01:29:42,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@573ac35f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:29:42, skipping insertion in model container [2024-06-28 01:29:42,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:29:42" (2/2) ... [2024-06-28 01:29:42,888 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 01:29:42,987 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 01:29:42,988 INFO L97 edCorrectnessWitness]: Location invariant before [L870-L870] ((((((((((((((((((((((! multithreaded || (x$mem_tmp == 0 || x$mem_tmp == 1)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || x$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || ((((((((((((((((((((((0 <= __unbuffered_cnt && x$flush_delayed == (_Bool)0) && x$r_buff0_thd0 == (_Bool)0) && x$r_buff0_thd1 == (_Bool)0) && x$r_buff0_thd3 == (_Bool)0) && x$r_buff0_thd4 == (_Bool)0) && x$r_buff1_thd0 == (_Bool)0) && x$r_buff1_thd1 == (_Bool)0) && x$r_buff1_thd3 == (_Bool)0) && x$r_buff1_thd4 == (_Bool)0) && x$read_delayed == (_Bool)0) && x$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (x$mem_tmp == 0 || x$mem_tmp == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 1)) && (x$w_buff1 == 0 || x$w_buff1 == 1)) && (y == 0 || y == 1)) && ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2)) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (x$w_buff0 == 0 || x$w_buff0 == 1))) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (x$w_buff1 == 0 || x$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((z == 0 || z == 1) || z == 2)) [2024-06-28 01:29:42,988 INFO L97 edCorrectnessWitness]: Location invariant before [L867-L867] ((((((((((((((((((((((! multithreaded || (x$mem_tmp == 0 || x$mem_tmp == 1)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || x$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || ((((((((((((((((((((((0 <= __unbuffered_cnt && x$flush_delayed == (_Bool)0) && x$r_buff0_thd0 == (_Bool)0) && x$r_buff0_thd1 == (_Bool)0) && x$r_buff0_thd3 == (_Bool)0) && x$r_buff0_thd4 == (_Bool)0) && x$r_buff1_thd0 == (_Bool)0) && x$r_buff1_thd1 == (_Bool)0) && x$r_buff1_thd3 == (_Bool)0) && x$r_buff1_thd4 == (_Bool)0) && x$read_delayed == (_Bool)0) && x$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (x$mem_tmp == 0 || x$mem_tmp == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 1)) && (x$w_buff1 == 0 || x$w_buff1 == 1)) && (y == 0 || y == 1)) && ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2)) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (x$w_buff0 == 0 || x$w_buff0 == 1))) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (x$w_buff1 == 0 || x$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((z == 0 || z == 1) || z == 2)) [2024-06-28 01:29:42,988 INFO L97 edCorrectnessWitness]: Location invariant before [L865-L865] ((((((((((((((((((((((! multithreaded || (x$mem_tmp == 0 || x$mem_tmp == 1)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || x$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || ((((((((((((((((((((((0 <= __unbuffered_cnt && x$flush_delayed == (_Bool)0) && x$r_buff0_thd0 == (_Bool)0) && x$r_buff0_thd1 == (_Bool)0) && x$r_buff0_thd3 == (_Bool)0) && x$r_buff0_thd4 == (_Bool)0) && x$r_buff1_thd0 == (_Bool)0) && x$r_buff1_thd1 == (_Bool)0) && x$r_buff1_thd3 == (_Bool)0) && x$r_buff1_thd4 == (_Bool)0) && x$read_delayed == (_Bool)0) && x$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (x$mem_tmp == 0 || x$mem_tmp == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 1)) && (x$w_buff1 == 0 || x$w_buff1 == 1)) && (y == 0 || y == 1)) && ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2)) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (x$w_buff0 == 0 || x$w_buff0 == 1))) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (x$w_buff1 == 0 || x$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((z == 0 || z == 1) || z == 2)) [2024-06-28 01:29:42,989 INFO L97 edCorrectnessWitness]: Location invariant before [L869-L869] ((((((((((((((((((((((! multithreaded || (x$mem_tmp == 0 || x$mem_tmp == 1)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || x$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || ((((((((((((((((((((((0 <= __unbuffered_cnt && x$flush_delayed == (_Bool)0) && x$r_buff0_thd0 == (_Bool)0) && x$r_buff0_thd1 == (_Bool)0) && x$r_buff0_thd3 == (_Bool)0) && x$r_buff0_thd4 == (_Bool)0) && x$r_buff1_thd0 == (_Bool)0) && x$r_buff1_thd1 == (_Bool)0) && x$r_buff1_thd3 == (_Bool)0) && x$r_buff1_thd4 == (_Bool)0) && x$read_delayed == (_Bool)0) && x$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (x$mem_tmp == 0 || x$mem_tmp == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 1)) && (x$w_buff1 == 0 || x$w_buff1 == 1)) && (y == 0 || y == 1)) && ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2)) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (x$w_buff0 == 0 || x$w_buff0 == 1))) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (x$w_buff1 == 0 || x$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || ((z == 0 || z == 1) || z == 2)) [2024-06-28 01:29:42,989 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 01:29:42,990 INFO L106 edCorrectnessWitness]: ghost_update [L863-L863] multithreaded = 1; [2024-06-28 01:29:43,023 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 01:29:43,144 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/mix026_power.opt_tso.opt.i[1001,1014] [2024-06-28 01:29:43,250 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:29:43,258 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-28 01:29:43,289 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/mix026_power.opt_tso.opt.i[1001,1014] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:29:43,413 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:29:43,464 INFO L206 MainTranslator]: Completed translation [2024-06-28 01:29:43,464 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:29:43 WrapperNode [2024-06-28 01:29:43,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 01:29:43,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 01:29:43,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 01:29:43,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 01:29:43,472 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,499 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,541 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2024-06-28 01:29:43,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 01:29:43,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 01:29:43,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 01:29:43,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 01:29:43,551 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,551 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,562 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,585 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 01:29:43,585 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,585 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,606 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,615 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,617 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,624 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 01:29:43,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 01:29:43,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 01:29:43,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 01:29:43,665 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 01:29:43" (1/1) ... [2024-06-28 01:29:43,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:29:43,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:29:43,731 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 01:29:43,749 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 01:29:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-28 01:29:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 01:29:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-28 01:29:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-28 01:29:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-28 01:29:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-28 01:29:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-28 01:29:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-28 01:29:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-28 01:29:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-28 01:29:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 01:29:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-28 01:29:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 01:29:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 01:29:43,764 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 01:29:43,862 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 01:29:43,864 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 01:29:44,216 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 01:29:44,216 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 01:29:44,340 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 01:29:44,340 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 01:29:44,341 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:29:44 BoogieIcfgContainer [2024-06-28 01:29:44,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 01:29:44,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 01:29:44,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 01:29:44,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 01:29:44,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 01:29:42" (1/4) ... [2024-06-28 01:29:44,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd961f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:29:44, skipping insertion in model container [2024-06-28 01:29:44,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:29:42" (2/4) ... [2024-06-28 01:29:44,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd961f7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:29:44, skipping insertion in model container [2024-06-28 01:29:44,347 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 01:29:43" (3/4) ... [2024-06-28 01:29:44,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd961f7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:29:44, skipping insertion in model container [2024-06-28 01:29:44,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:29:44" (4/4) ... [2024-06-28 01:29:44,349 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026_power.opt_tso.opt.i [2024-06-28 01:29:44,362 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 01:29:44,362 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-28 01:29:44,362 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 01:29:44,417 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-28 01:29:44,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 58 transitions, 132 flow [2024-06-28 01:29:44,478 INFO L124 PetriNetUnfolderBase]: 1/54 cut-off events. [2024-06-28 01:29:44,479 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:29:44,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 54 events. 1/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-06-28 01:29:44,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 58 transitions, 132 flow [2024-06-28 01:29:44,486 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 54 transitions, 120 flow [2024-06-28 01:29:44,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 01:29:44,504 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;@792d4de9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 01:29:44,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-28 01:29:44,507 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 01:29:44,507 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-28 01:29:44,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:29:44,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:29:44,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 01:29:44,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:29:44,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:29:44,529 INFO L85 PathProgramCache]: Analyzing trace with hash 372978290, now seen corresponding path program 1 times [2024-06-28 01:29:44,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:29:44,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319448601] [2024-06-28 01:29:44,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:29:44,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:29:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:29:45,480 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 01:29:45,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:29:45,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319448601] [2024-06-28 01:29:45,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319448601] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:29:45,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:29:45,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:29:45,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706017999] [2024-06-28 01:29:45,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:29:45,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:29:45,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:29:45,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:29:45,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:29:45,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-06-28 01:29:45,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:29:45,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:29:45,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-06-28 01:29:45,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:29:48,443 INFO L124 PetriNetUnfolderBase]: 21656/30687 cut-off events. [2024-06-28 01:29:48,443 INFO L125 PetriNetUnfolderBase]: For 213/213 co-relation queries the response was YES. [2024-06-28 01:29:48,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59938 conditions, 30687 events. 21656/30687 cut-off events. For 213/213 co-relation queries the response was YES. Maximal size of possible extension queue 1121. Compared 200339 event pairs, 14638 based on Foata normal form. 901/29850 useless extension candidates. Maximal degree in co-relation 59925. Up to 28798 conditions per place. [2024-06-28 01:29:48,754 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 51 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2024-06-28 01:29:48,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 72 transitions, 279 flow [2024-06-28 01:29:48,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:29:48,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:29:48,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-06-28 01:29:48,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6896551724137931 [2024-06-28 01:29:48,765 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 120 flow. Second operand 3 states and 120 transitions. [2024-06-28 01:29:48,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 72 transitions, 279 flow [2024-06-28 01:29:48,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 72 transitions, 272 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-28 01:29:48,769 INFO L231 Difference]: Finished difference. Result has 65 places, 58 transitions, 160 flow [2024-06-28 01:29:48,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=65, PETRI_TRANSITIONS=58} [2024-06-28 01:29:48,773 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2024-06-28 01:29:48,773 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 58 transitions, 160 flow [2024-06-28 01:29:48,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:29:48,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:29:48,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:29:48,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 01:29:48,774 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:29:48,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:29:48,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1949888593, now seen corresponding path program 1 times [2024-06-28 01:29:48,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:29:48,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238031636] [2024-06-28 01:29:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:29:48,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:29:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:29:49,354 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 01:29:49,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:29:49,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238031636] [2024-06-28 01:29:49,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238031636] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:29:49,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:29:49,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:29:49,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805575796] [2024-06-28 01:29:49,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:29:49,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:29:49,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:29:49,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:29:49,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:29:49,414 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 58 [2024-06-28 01:29:49,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:29:49,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:29:49,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 58 [2024-06-28 01:29:49,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:29:52,592 INFO L124 PetriNetUnfolderBase]: 25818/38202 cut-off events. [2024-06-28 01:29:52,592 INFO L125 PetriNetUnfolderBase]: For 5845/5845 co-relation queries the response was YES. [2024-06-28 01:29:52,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81296 conditions, 38202 events. 25818/38202 cut-off events. For 5845/5845 co-relation queries the response was YES. Maximal size of possible extension queue 1421. Compared 271269 event pairs, 17357 based on Foata normal form. 8/35733 useless extension candidates. Maximal degree in co-relation 81284. Up to 34154 conditions per place. [2024-06-28 01:29:52,983 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 67 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2024-06-28 01:29:52,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 92 transitions, 404 flow [2024-06-28 01:29:52,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:29:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:29:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 154 transitions. [2024-06-28 01:29:52,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6637931034482759 [2024-06-28 01:29:52,989 INFO L175 Difference]: Start difference. First operand has 65 places, 58 transitions, 160 flow. Second operand 4 states and 154 transitions. [2024-06-28 01:29:52,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 92 transitions, 404 flow [2024-06-28 01:29:52,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 92 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:29:52,993 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 218 flow [2024-06-28 01:29:52,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2024-06-28 01:29:52,994 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 2 predicate places. [2024-06-28 01:29:52,996 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 218 flow [2024-06-28 01:29:52,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:29:52,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:29:52,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:29:53,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 01:29:53,001 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:29:53,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:29:53,003 INFO L85 PathProgramCache]: Analyzing trace with hash 316289683, now seen corresponding path program 1 times [2024-06-28 01:29:53,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:29:53,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540500914] [2024-06-28 01:29:53,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:29:53,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:29:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:29:53,074 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 01:29:53,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:29:53,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540500914] [2024-06-28 01:29:53,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540500914] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:29:53,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:29:53,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:29:53,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673367327] [2024-06-28 01:29:53,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:29:53,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:29:53,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:29:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:29:53,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:29:53,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 58 [2024-06-28 01:29:53,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:29:53,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:29:53,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 58 [2024-06-28 01:29:53,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:29:53,929 INFO L124 PetriNetUnfolderBase]: 4718/8279 cut-off events. [2024-06-28 01:29:53,929 INFO L125 PetriNetUnfolderBase]: For 1862/2390 co-relation queries the response was YES. [2024-06-28 01:29:53,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17080 conditions, 8279 events. 4718/8279 cut-off events. For 1862/2390 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 65692 event pairs, 2169 based on Foata normal form. 9/7577 useless extension candidates. Maximal degree in co-relation 17066. Up to 5412 conditions per place. [2024-06-28 01:29:53,988 INFO L140 encePairwiseOnDemand]: 55/58 looper letters, 40 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-06-28 01:29:53,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 77 transitions, 325 flow [2024-06-28 01:29:53,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:29:53,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:29:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-06-28 01:29:53,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7816091954022989 [2024-06-28 01:29:53,990 INFO L175 Difference]: Start difference. First operand has 68 places, 63 transitions, 218 flow. Second operand 3 states and 136 transitions. [2024-06-28 01:29:53,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 77 transitions, 325 flow [2024-06-28 01:29:53,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 77 transitions, 306 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-28 01:29:53,993 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 188 flow [2024-06-28 01:29:53,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-06-28 01:29:53,994 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 1 predicate places. [2024-06-28 01:29:53,994 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 188 flow [2024-06-28 01:29:53,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:29:53,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:29:53,995 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:29:53,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 01:29:53,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:29:53,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:29:53,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1792899956, now seen corresponding path program 1 times [2024-06-28 01:29:53,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:29:53,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599751570] [2024-06-28 01:29:53,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:29:53,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:29:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:29:55,178 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 01:29:55,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:29:55,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599751570] [2024-06-28 01:29:55,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599751570] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:29:55,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:29:55,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:29:55,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922284759] [2024-06-28 01:29:55,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:29:55,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:29:55,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:29:55,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:29:55,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:29:55,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 58 [2024-06-28 01:29:55,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:29:55,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:29:55,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 58 [2024-06-28 01:29:55,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:29:57,779 INFO L124 PetriNetUnfolderBase]: 21271/31557 cut-off events. [2024-06-28 01:29:57,779 INFO L125 PetriNetUnfolderBase]: For 17907/17907 co-relation queries the response was YES. [2024-06-28 01:29:57,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73577 conditions, 31557 events. 21271/31557 cut-off events. For 17907/17907 co-relation queries the response was YES. Maximal size of possible extension queue 1169. Compared 218490 event pairs, 12725 based on Foata normal form. 8/30663 useless extension candidates. Maximal degree in co-relation 73563. Up to 28141 conditions per place. [2024-06-28 01:29:57,951 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 85 selfloop transitions, 16 changer transitions 5/120 dead transitions. [2024-06-28 01:29:57,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 120 transitions, 560 flow [2024-06-28 01:29:57,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:29:57,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:29:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 218 transitions. [2024-06-28 01:29:57,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6264367816091954 [2024-06-28 01:29:57,953 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 188 flow. Second operand 6 states and 218 transitions. [2024-06-28 01:29:57,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 120 transitions, 560 flow [2024-06-28 01:29:57,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 120 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 01:29:57,956 INFO L231 Difference]: Finished difference. Result has 71 places, 65 transitions, 259 flow [2024-06-28 01:29:57,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=259, PETRI_PLACES=71, PETRI_TRANSITIONS=65} [2024-06-28 01:29:57,957 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 5 predicate places. [2024-06-28 01:29:57,957 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 259 flow [2024-06-28 01:29:57,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:29:57,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:29:57,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:29:57,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 01:29:57,958 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:29:57,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:29:57,959 INFO L85 PathProgramCache]: Analyzing trace with hash -988608603, now seen corresponding path program 1 times [2024-06-28 01:29:57,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:29:57,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873278834] [2024-06-28 01:29:57,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:29:57,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:29:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:29:58,906 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 01:29:58,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:29:58,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873278834] [2024-06-28 01:29:58,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873278834] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:29:58,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:29:58,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:29:58,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520240054] [2024-06-28 01:29:58,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:29:58,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:29:58,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:29:58,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:29:58,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:29:58,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-06-28 01:29:58,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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 01:29:58,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:29:58,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-06-28 01:29:58,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:30:01,467 INFO L124 PetriNetUnfolderBase]: 17814/27171 cut-off events. [2024-06-28 01:30:01,467 INFO L125 PetriNetUnfolderBase]: For 22364/22364 co-relation queries the response was YES. [2024-06-28 01:30:01,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67215 conditions, 27171 events. 17814/27171 cut-off events. For 22364/22364 co-relation queries the response was YES. Maximal size of possible extension queue 1017. Compared 192715 event pairs, 9974 based on Foata normal form. 3/26237 useless extension candidates. Maximal degree in co-relation 67198. Up to 23730 conditions per place. [2024-06-28 01:30:01,628 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 73 selfloop transitions, 11 changer transitions 0/97 dead transitions. [2024-06-28 01:30:01,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 97 transitions, 534 flow [2024-06-28 01:30:01,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:30:01,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:30:01,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2024-06-28 01:30:01,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5413793103448276 [2024-06-28 01:30:01,629 INFO L175 Difference]: Start difference. First operand has 71 places, 65 transitions, 259 flow. Second operand 5 states and 157 transitions. [2024-06-28 01:30:01,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 97 transitions, 534 flow [2024-06-28 01:30:01,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 97 transitions, 488 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-06-28 01:30:01,636 INFO L231 Difference]: Finished difference. Result has 73 places, 74 transitions, 321 flow [2024-06-28 01:30:01,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=321, PETRI_PLACES=73, PETRI_TRANSITIONS=74} [2024-06-28 01:30:01,637 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 7 predicate places. [2024-06-28 01:30:01,637 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 74 transitions, 321 flow [2024-06-28 01:30:01,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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 01:30:01,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:30:01,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:30:01,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 01:30:01,638 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:30:01,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:30:01,638 INFO L85 PathProgramCache]: Analyzing trace with hash 104429140, now seen corresponding path program 1 times [2024-06-28 01:30:01,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:30:01,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000023528] [2024-06-28 01:30:01,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:30:01,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:30:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:30:02,555 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 01:30:02,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:30:02,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000023528] [2024-06-28 01:30:02,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000023528] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:30:02,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:30:02,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:30:02,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767688967] [2024-06-28 01:30:02,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:30:02,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-28 01:30:02,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:30:02,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-28 01:30:02,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-28 01:30:02,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-06-28 01:30:02,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 74 transitions, 321 flow. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 01:30:02,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:30:02,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-06-28 01:30:02,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:30:05,764 INFO L124 PetriNetUnfolderBase]: 21377/31983 cut-off events. [2024-06-28 01:30:05,765 INFO L125 PetriNetUnfolderBase]: For 40898/40904 co-relation queries the response was YES. [2024-06-28 01:30:05,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85871 conditions, 31983 events. 21377/31983 cut-off events. For 40898/40904 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 223371 event pairs, 12070 based on Foata normal form. 10/31236 useless extension candidates. Maximal degree in co-relation 85851. Up to 28320 conditions per place. [2024-06-28 01:30:05,997 INFO L140 encePairwiseOnDemand]: 44/58 looper letters, 89 selfloop transitions, 23 changer transitions 0/124 dead transitions. [2024-06-28 01:30:05,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 124 transitions, 724 flow [2024-06-28 01:30:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-28 01:30:05,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-28 01:30:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 204 transitions. [2024-06-28 01:30:05,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5024630541871922 [2024-06-28 01:30:05,999 INFO L175 Difference]: Start difference. First operand has 73 places, 74 transitions, 321 flow. Second operand 7 states and 204 transitions. [2024-06-28 01:30:05,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 124 transitions, 724 flow [2024-06-28 01:30:06,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 124 transitions, 698 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-06-28 01:30:06,007 INFO L231 Difference]: Finished difference. Result has 81 places, 91 transitions, 489 flow [2024-06-28 01:30:06,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=489, PETRI_PLACES=81, PETRI_TRANSITIONS=91} [2024-06-28 01:30:06,008 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 15 predicate places. [2024-06-28 01:30:06,008 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 91 transitions, 489 flow [2024-06-28 01:30:06,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 01:30:06,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:30:06,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:30:06,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 01:30:06,009 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:30:06,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:30:06,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1723561596, now seen corresponding path program 2 times [2024-06-28 01:30:06,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:30:06,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650738674] [2024-06-28 01:30:06,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:30:06,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:30:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:30:06,776 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 01:30:06,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:30:06,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650738674] [2024-06-28 01:30:06,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650738674] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:30:06,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:30:06,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:30:06,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513210373] [2024-06-28 01:30:06,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:30:06,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-28 01:30:06,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:30:06,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-28 01:30:06,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-28 01:30:06,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-06-28 01:30:06,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 91 transitions, 489 flow. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 01:30:06,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:30:06,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-06-28 01:30:06,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:30:10,370 INFO L124 PetriNetUnfolderBase]: 21548/32237 cut-off events. [2024-06-28 01:30:10,370 INFO L125 PetriNetUnfolderBase]: For 64478/64478 co-relation queries the response was YES. [2024-06-28 01:30:10,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94965 conditions, 32237 events. 21548/32237 cut-off events. For 64478/64478 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 224876 event pairs, 11874 based on Foata normal form. 6/31485 useless extension candidates. Maximal degree in co-relation 94940. Up to 28500 conditions per place. [2024-06-28 01:30:10,578 INFO L140 encePairwiseOnDemand]: 41/58 looper letters, 101 selfloop transitions, 36 changer transitions 0/149 dead transitions. [2024-06-28 01:30:10,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 149 transitions, 1003 flow [2024-06-28 01:30:10,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-28 01:30:10,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-28 01:30:10,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 218 transitions. [2024-06-28 01:30:10,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5369458128078818 [2024-06-28 01:30:10,581 INFO L175 Difference]: Start difference. First operand has 81 places, 91 transitions, 489 flow. Second operand 7 states and 218 transitions. [2024-06-28 01:30:10,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 149 transitions, 1003 flow [2024-06-28 01:30:10,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 149 transitions, 957 flow, removed 22 selfloop flow, removed 1 redundant places. [2024-06-28 01:30:10,603 INFO L231 Difference]: Finished difference. Result has 88 places, 108 transitions, 695 flow [2024-06-28 01:30:10,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=695, PETRI_PLACES=88, PETRI_TRANSITIONS=108} [2024-06-28 01:30:10,604 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 22 predicate places. [2024-06-28 01:30:10,605 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 108 transitions, 695 flow [2024-06-28 01:30:10,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 01:30:10,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:30:10,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:30:10,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-28 01:30:10,605 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:30:10,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:30:10,606 INFO L85 PathProgramCache]: Analyzing trace with hash -560305266, now seen corresponding path program 3 times [2024-06-28 01:30:10,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:30:10,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077296319] [2024-06-28 01:30:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:30:10,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:30:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:30:11,429 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 01:30:11,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:30:11,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077296319] [2024-06-28 01:30:11,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077296319] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:30:11,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:30:11,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:30:11,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594385051] [2024-06-28 01:30:11,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:30:11,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-28 01:30:11,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:30:11,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-28 01:30:11,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-28 01:30:11,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-06-28 01:30:11,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 108 transitions, 695 flow. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 01:30:11,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:30:11,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-06-28 01:30:11,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:30:14,760 INFO L124 PetriNetUnfolderBase]: 21584/32113 cut-off events. [2024-06-28 01:30:14,760 INFO L125 PetriNetUnfolderBase]: For 87811/87823 co-relation queries the response was YES. [2024-06-28 01:30:14,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102251 conditions, 32113 events. 21584/32113 cut-off events. For 87811/87823 co-relation queries the response was YES. Maximal size of possible extension queue 1120. Compared 221023 event pairs, 11484 based on Foata normal form. 14/31363 useless extension candidates. Maximal degree in co-relation 102222. Up to 28436 conditions per place. [2024-06-28 01:30:15,180 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 93 selfloop transitions, 42 changer transitions 0/147 dead transitions. [2024-06-28 01:30:15,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 147 transitions, 1127 flow [2024-06-28 01:30:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:30:15,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:30:15,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 188 transitions. [2024-06-28 01:30:15,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5402298850574713 [2024-06-28 01:30:15,182 INFO L175 Difference]: Start difference. First operand has 88 places, 108 transitions, 695 flow. Second operand 6 states and 188 transitions. [2024-06-28 01:30:15,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 147 transitions, 1127 flow [2024-06-28 01:30:15,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 147 transitions, 1069 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-06-28 01:30:15,198 INFO L231 Difference]: Finished difference. Result has 91 places, 112 transitions, 784 flow [2024-06-28 01:30:15,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=784, PETRI_PLACES=91, PETRI_TRANSITIONS=112} [2024-06-28 01:30:15,199 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 25 predicate places. [2024-06-28 01:30:15,199 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 112 transitions, 784 flow [2024-06-28 01:30:15,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 01:30:15,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:30:15,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:30:15,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-28 01:30:15,200 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:30:15,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:30:15,200 INFO L85 PathProgramCache]: Analyzing trace with hash -865058268, now seen corresponding path program 1 times [2024-06-28 01:30:15,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:30:15,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119032111] [2024-06-28 01:30:15,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:30:15,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:30:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:30:16,277 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 01:30:16,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:30:16,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119032111] [2024-06-28 01:30:16,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119032111] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:30:16,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:30:16,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-28 01:30:16,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132809373] [2024-06-28 01:30:16,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:30:16,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-28 01:30:16,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:30:16,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-28 01:30:16,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-28 01:30:16,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-06-28 01:30:16,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 112 transitions, 784 flow. Second operand has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 states have internal predecessors, (139), 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 01:30:16,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:30:16,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-06-28 01:30:16,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:30:19,739 INFO L124 PetriNetUnfolderBase]: 22188/33596 cut-off events. [2024-06-28 01:30:19,739 INFO L125 PetriNetUnfolderBase]: For 116639/116639 co-relation queries the response was YES. [2024-06-28 01:30:19,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111864 conditions, 33596 events. 22188/33596 cut-off events. For 116639/116639 co-relation queries the response was YES. Maximal size of possible extension queue 1191. Compared 238251 event pairs, 11659 based on Foata normal form. 3/32480 useless extension candidates. Maximal degree in co-relation 111834. Up to 29423 conditions per place. [2024-06-28 01:30:20,016 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 132 selfloop transitions, 20 changer transitions 0/164 dead transitions. [2024-06-28 01:30:20,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 164 transitions, 1297 flow [2024-06-28 01:30:20,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-28 01:30:20,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-28 01:30:20,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 215 transitions. [2024-06-28 01:30:20,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5295566502463054 [2024-06-28 01:30:20,221 INFO L175 Difference]: Start difference. First operand has 91 places, 112 transitions, 784 flow. Second operand 7 states and 215 transitions. [2024-06-28 01:30:20,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 164 transitions, 1297 flow [2024-06-28 01:30:20,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 164 transitions, 1177 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-06-28 01:30:20,260 INFO L231 Difference]: Finished difference. Result has 95 places, 120 transitions, 791 flow [2024-06-28 01:30:20,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=791, PETRI_PLACES=95, PETRI_TRANSITIONS=120} [2024-06-28 01:30:20,260 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 29 predicate places. [2024-06-28 01:30:20,261 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 120 transitions, 791 flow [2024-06-28 01:30:20,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 states have internal predecessors, (139), 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 01:30:20,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:30:20,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:30:20,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-28 01:30:20,261 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:30:20,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:30:20,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1225453348, now seen corresponding path program 1 times [2024-06-28 01:30:20,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:30:20,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421166979] [2024-06-28 01:30:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:30:20,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:30:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:30:21,336 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 01:30:21,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:30:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421166979] [2024-06-28 01:30:21,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421166979] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:30:21,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:30:21,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-28 01:30:21,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158206957] [2024-06-28 01:30:21,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:30:21,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-28 01:30:21,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:30:21,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-28 01:30:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-28 01:30:21,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-06-28 01:30:21,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 120 transitions, 791 flow. Second operand has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 states have internal predecessors, (139), 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 01:30:21,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:30:21,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-06-28 01:30:21,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:30:25,968 INFO L124 PetriNetUnfolderBase]: 25747/38340 cut-off events. [2024-06-28 01:30:25,969 INFO L125 PetriNetUnfolderBase]: For 168897/168897 co-relation queries the response was YES. [2024-06-28 01:30:26,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137140 conditions, 38340 events. 25747/38340 cut-off events. For 168897/168897 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 271609 event pairs, 13043 based on Foata normal form. 3/37466 useless extension candidates. Maximal degree in co-relation 137108. Up to 34055 conditions per place. [2024-06-28 01:30:26,330 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 128 selfloop transitions, 33 changer transitions 0/174 dead transitions. [2024-06-28 01:30:26,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 174 transitions, 1339 flow [2024-06-28 01:30:26,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-28 01:30:26,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-28 01:30:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 219 transitions. [2024-06-28 01:30:26,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5394088669950738 [2024-06-28 01:30:26,334 INFO L175 Difference]: Start difference. First operand has 95 places, 120 transitions, 791 flow. Second operand 7 states and 219 transitions. [2024-06-28 01:30:26,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 174 transitions, 1339 flow [2024-06-28 01:30:26,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 174 transitions, 1274 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-06-28 01:30:26,402 INFO L231 Difference]: Finished difference. Result has 99 places, 129 transitions, 912 flow [2024-06-28 01:30:26,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=912, PETRI_PLACES=99, PETRI_TRANSITIONS=129} [2024-06-28 01:30:26,405 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 33 predicate places. [2024-06-28 01:30:26,405 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 129 transitions, 912 flow [2024-06-28 01:30:26,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 states have internal predecessors, (139), 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 01:30:26,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:30:26,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:30:26,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-28 01:30:26,406 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:30:26,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:30:26,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1047001321, now seen corresponding path program 1 times [2024-06-28 01:30:26,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:30:26,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50474653] [2024-06-28 01:30:26,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:30:26,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:30:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:30:27,875 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 01:30:27,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:30:27,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50474653] [2024-06-28 01:30:27,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50474653] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:30:27,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:30:27,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-28 01:30:27,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241760884] [2024-06-28 01:30:27,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:30:27,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-28 01:30:27,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:30:27,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-28 01:30:27,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-28 01:30:28,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-06-28 01:30:28,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 129 transitions, 912 flow. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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 01:30:28,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:30:28,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-06-28 01:30:28,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:30:31,655 INFO L124 PetriNetUnfolderBase]: 22169/32780 cut-off events. [2024-06-28 01:30:31,656 INFO L125 PetriNetUnfolderBase]: For 179766/179766 co-relation queries the response was YES. [2024-06-28 01:30:31,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124002 conditions, 32780 events. 22169/32780 cut-off events. For 179766/179766 co-relation queries the response was YES. Maximal size of possible extension queue 1163. Compared 224222 event pairs, 10955 based on Foata normal form. 6/31895 useless extension candidates. Maximal degree in co-relation 123968. Up to 29337 conditions per place. [2024-06-28 01:30:31,887 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 151 selfloop transitions, 38 changer transitions 0/201 dead transitions. [2024-06-28 01:30:31,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 201 transitions, 1700 flow [2024-06-28 01:30:31,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-28 01:30:31,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-28 01:30:31,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 247 transitions. [2024-06-28 01:30:31,889 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5323275862068966 [2024-06-28 01:30:31,889 INFO L175 Difference]: Start difference. First operand has 99 places, 129 transitions, 912 flow. Second operand 8 states and 247 transitions. [2024-06-28 01:30:31,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 201 transitions, 1700 flow [2024-06-28 01:30:31,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 201 transitions, 1594 flow, removed 27 selfloop flow, removed 4 redundant places. [2024-06-28 01:30:31,945 INFO L231 Difference]: Finished difference. Result has 106 places, 144 transitions, 1147 flow [2024-06-28 01:30:31,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1147, PETRI_PLACES=106, PETRI_TRANSITIONS=144} [2024-06-28 01:30:31,945 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 40 predicate places. [2024-06-28 01:30:31,946 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 144 transitions, 1147 flow [2024-06-28 01:30:31,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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 01:30:31,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:30:31,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:30:31,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-28 01:30:31,946 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:30:31,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:30:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1628740649, now seen corresponding path program 1 times [2024-06-28 01:30:31,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:30:31,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226333528] [2024-06-28 01:30:31,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:30:31,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:30:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:30:32,681 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 01:30:32,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:30:32,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226333528] [2024-06-28 01:30:32,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226333528] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:30:32,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:30:32,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:30:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946167164] [2024-06-28 01:30:32,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:30:32,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:30:32,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:30:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:30:32,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:30:32,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-06-28 01:30:32,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 144 transitions, 1147 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 01:30:32,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:30:32,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-06-28 01:30:32,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand