./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix017.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/mix017.oepc.yml/witness.yml --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 7724a2de
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix017.oepc.i ./goblint.2024-06-19_11-23-25.files/protection/mix017.oepc.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false
--- Real Ultimate output ---
This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m
[2024-06-27 20:02:53,585 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-06-27 20:02:53,644 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-06-27 20:02:53,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-06-27 20:02:53,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-06-27 20:02:53,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-06-27 20:02:53,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-06-27 20:02:53,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-06-27 20:02:53,680 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-06-27 20:02:53,684 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-06-27 20:02:53,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-06-27 20:02:53,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-06-27 20:02:53,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-06-27 20:02:53,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-06-27 20:02:53,686 INFO L153 SettingsManager]: * Use SBE=true
[2024-06-27 20:02:53,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-06-27 20:02:53,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-06-27 20:02:53,687 INFO L153 SettingsManager]: * sizeof long=4
[2024-06-27 20:02:53,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-06-27 20:02:53,687 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-06-27 20:02:53,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-06-27 20:02:53,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-06-27 20:02:53,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-06-27 20:02:53,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-06-27 20:02:53,688 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-06-27 20:02:53,688 INFO L153 SettingsManager]: * sizeof long double=12
[2024-06-27 20:02:53,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-06-27 20:02:53,689 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-06-27 20:02:53,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-06-27 20:02:53,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-06-27 20:02:53,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-06-27 20:02:53,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-06-27 20:02:53,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-06-27 20:02:53,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-06-27 20:02:53,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-06-27 20:02:53,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-06-27 20:02:53,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-06-27 20:02:53,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-06-27 20:02:53,692 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-06-27 20:02:53,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-06-27 20:02:53,692 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2024-06-27 20:02:53,692 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-06-27 20:02:53,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-06-27 20:02:53,693 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false
[2024-06-27 20:02:53,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-06-27 20:02:53,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-06-27 20:02:53,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-06-27 20:02:53,996 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-06-27 20:02:53,997 INFO L274 PluginConnector]: Witness Parser initialized
[2024-06-27 20:02:53,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/mix017.oepc.yml/witness.yml
[2024-06-27 20:02:54,156 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-06-27 20:02:54,156 INFO L274 PluginConnector]: CDTParser initialized
[2024-06-27 20:02:54,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix017.oepc.i
[2024-06-27 20:02:55,128 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-06-27 20:02:55,390 INFO L384 CDTParser]: Found 1 translation units.
[2024-06-27 20:02:55,390 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i
[2024-06-27 20:02:55,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2787c54a/1fcbac5b412f4199a8f83ab6d8b2410f/FLAG77e8d0f73
[2024-06-27 20:02:55,427 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2787c54a/1fcbac5b412f4199a8f83ab6d8b2410f
[2024-06-27 20:02:55,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-06-27 20:02:55,438 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-06-27 20:02:55,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-06-27 20:02:55,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-06-27 20:02:55,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-06-27 20:02:55,467 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 08:02:54" (1/2) ...
[2024-06-27 20:02:55,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fad8e89 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 08:02:55, skipping insertion in model container
[2024-06-27 20:02:55,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 08:02:54" (1/2) ...
[2024-06-27 20:02:55,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bb0221d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 08:02:55, skipping insertion in model container
[2024-06-27 20:02:55,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 08:02:55" (2/2) ...
[2024-06-27 20:02:55,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fad8e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:55, skipping insertion in model container
[2024-06-27 20:02:55,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 08:02:55" (2/2) ...
[2024-06-27 20:02:55,470 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness
[2024-06-27 20:02:55,589 INFO L95 edCorrectnessWitness]: Found the following entries in the witness:
[2024-06-27 20:02:55,591 INFO L97 edCorrectnessWitness]: Location invariant before [L871-L871] (((((((((((((((((((((((! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))
[2024-06-27 20:02:55,591 INFO L97 edCorrectnessWitness]: Location invariant before [L873-L873] (((((((((((((((((((((((! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))
[2024-06-27 20:02:55,591 INFO L97 edCorrectnessWitness]: Location invariant before [L875-L875] (((((((((((((((((((((((! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))
[2024-06-27 20:02:55,591 INFO L97 edCorrectnessWitness]: Location invariant before [L876-L876] (((((((((((((((((((((((! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))
[2024-06-27 20:02:55,591 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0
[2024-06-27 20:02:55,592 INFO L106 edCorrectnessWitness]: ghost_update [L869-L869] multithreaded = 1;
[2024-06-27 20:02:55,638 INFO L177 MainTranslator]: Built tables and reachable declarations
[2024-06-27 20:02:55,933 INFO L207 PostProcessor]: Analyzing one entry point: main
[2024-06-27 20:02:55,945 INFO L202 MainTranslator]: Completed pre-run
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
[2024-06-27 20:02:56,076 INFO L207 PostProcessor]: Analyzing one entry point: main
[2024-06-27 20:02:56,106 INFO L206 MainTranslator]: Completed translation
[2024-06-27 20:02:56,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56 WrapperNode
[2024-06-27 20:02:56,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-06-27 20:02:56,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-06-27 20:02:56,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-06-27 20:02:56,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-06-27 20:02:56,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,198 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 140
[2024-06-27 20:02:56,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-06-27 20:02:56,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-06-27 20:02:56,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-06-27 20:02:56,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-06-27 20:02:56,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,221 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,237 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-06-27 20:02:56,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-06-27 20:02:56,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-06-27 20:02:56,274 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-06-27 20:02:56,274 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-06-27 20:02:56,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (1/1) ...
[2024-06-27 20:02:56,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-06-27 20:02:56,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-06-27 20:02:56,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-06-27 20:02:56,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-06-27 20:02:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-06-27 20:02:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-06-27 20:02:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2024-06-27 20:02:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2024-06-27 20:02:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2024-06-27 20:02:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2024-06-27 20:02:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2024-06-27 20:02:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2024-06-27 20:02:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure P3
[2024-06-27 20:02:56,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P3
[2024-06-27 20:02:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-06-27 20:02:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-06-27 20:02:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-06-27 20:02:56,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-06-27 20:02:56,391 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2024-06-27 20:02:56,521 INFO L244 CfgBuilder]: Building ICFG
[2024-06-27 20:02:56,523 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-06-27 20:02:56,852 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program.
[2024-06-27 20:02:56,852 INFO L293 CfgBuilder]: Performing block encoding
[2024-06-27 20:02:56,998 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-06-27 20:02:56,998 INFO L320 CfgBuilder]: Removed 0 assume(true) statements.
[2024-06-27 20:02:56,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 08:02:56 BoogieIcfgContainer
[2024-06-27 20:02:56,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-06-27 20:02:57,000 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-06-27 20:02:57,000 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-06-27 20:02:57,002 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-06-27 20:02:57,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 08:02:54" (1/4) ...
[2024-06-27 20:02:57,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725f945 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 08:02:57, skipping insertion in model container
[2024-06-27 20:02:57,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 08:02:55" (2/4) ...
[2024-06-27 20:02:57,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725f945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 08:02:57, skipping insertion in model container
[2024-06-27 20:02:57,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 08:02:56" (3/4) ...
[2024-06-27 20:02:57,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725f945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 08:02:57, skipping insertion in model container
[2024-06-27 20:02:57,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 08:02:56" (4/4) ...
[2024-06-27 20:02:57,009 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017.oepc.i
[2024-06-27 20:02:57,021 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-06-27 20:02:57,021 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2024-06-27 20:02:57,021 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-06-27 20:02:57,067 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-06-27 20:02:57,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 52 transitions, 120 flow
[2024-06-27 20:02:57,124 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events.
[2024-06-27 20:02:57,124 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-06-27 20:02:57,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.
[2024-06-27 20:02:57,126 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 52 transitions, 120 flow
[2024-06-27 20:02:57,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 42 transitions, 96 flow
[2024-06-27 20:02:57,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-06-27 20:02:57,143 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;@547ccb3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-06-27 20:02:57,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2024-06-27 20:02:57,148 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-06-27 20:02:57,148 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events.
[2024-06-27 20:02:57,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-06-27 20:02:57,148 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:02:57,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2024-06-27 20:02:57,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:02:57,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:02:57,152 INFO L85 PathProgramCache]: Analyzing trace with hash 406019951, now seen corresponding path program 1 times
[2024-06-27 20:02:57,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:02:57,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740337536]
[2024-06-27 20:02:57,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:02:57,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:02:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:02:58,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:02:58,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:02:58,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740337536]
[2024-06-27 20:02:58,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740337536] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:02:58,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:02:58,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-06-27 20:02:58,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214838876]
[2024-06-27 20:02:58,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:02:58,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-06-27 20:02:58,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:02:58,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-06-27 20:02:58,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-06-27 20:02:58,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 52
[2024-06-27 20:02:58,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:02:58,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:02:58,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 52
[2024-06-27 20:02:58,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:02:59,364 INFO L124 PetriNetUnfolderBase]: 7892/11107 cut-off events.
[2024-06-27 20:02:59,365 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES.
[2024-06-27 20:02:59,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22184 conditions, 11107 events. 7892/11107 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 60718 event pairs, 6010 based on Foata normal form. 1/10873 useless extension candidates. Maximal degree in co-relation 22171. Up to 10748 conditions per place.
[2024-06-27 20:02:59,433 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 42 selfloop transitions, 5 changer transitions 0/56 dead transitions.
[2024-06-27 20:02:59,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 227 flow
[2024-06-27 20:02:59,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-06-27 20:02:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-06-27 20:02:59,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions.
[2024-06-27 20:02:59,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6346153846153846
[2024-06-27 20:02:59,445 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 96 flow. Second operand 3 states and 99 transitions.
[2024-06-27 20:02:59,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 227 flow
[2024-06-27 20:02:59,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 56 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-06-27 20:02:59,454 INFO L231 Difference]: Finished difference. Result has 54 places, 46 transitions, 131 flow
[2024-06-27 20:02:59,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=54, PETRI_TRANSITIONS=46}
[2024-06-27 20:02:59,458 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -1 predicate places.
[2024-06-27 20:02:59,459 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 131 flow
[2024-06-27 20:02:59,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:02:59,459 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:02:59,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:02:59,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-06-27 20:02:59,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:02:59,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:02:59,461 INFO L85 PathProgramCache]: Analyzing trace with hash -656326388, now seen corresponding path program 1 times
[2024-06-27 20:02:59,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:02:59,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688292718]
[2024-06-27 20:02:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:02:59,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:02:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:00,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:00,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688292718]
[2024-06-27 20:03:00,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688292718] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:00,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:00,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-06-27 20:03:00,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963173585]
[2024-06-27 20:03:00,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:00,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-06-27 20:03:00,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:00,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-06-27 20:03:00,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-06-27 20:03:00,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 52
[2024-06-27 20:03:00,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:00,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:00,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 52
[2024-06-27 20:03:00,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:01,375 INFO L124 PetriNetUnfolderBase]: 7882/11104 cut-off events.
[2024-06-27 20:03:01,375 INFO L125 PetriNetUnfolderBase]: For 2124/2124 co-relation queries the response was YES.
[2024-06-27 20:03:01,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25142 conditions, 11104 events. 7882/11104 cut-off events. For 2124/2124 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 60931 event pairs, 5323 based on Foata normal form. 4/11033 useless extension candidates. Maximal degree in co-relation 25130. Up to 10713 conditions per place.
[2024-06-27 20:03:01,434 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 52 selfloop transitions, 9 changer transitions 0/70 dead transitions.
[2024-06-27 20:03:01,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 70 transitions, 319 flow
[2024-06-27 20:03:01,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-06-27 20:03:01,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-06-27 20:03:01,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions.
[2024-06-27 20:03:01,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6201923076923077
[2024-06-27 20:03:01,436 INFO L175 Difference]: Start difference. First operand has 54 places, 46 transitions, 131 flow. Second operand 4 states and 129 transitions.
[2024-06-27 20:03:01,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 70 transitions, 319 flow
[2024-06-27 20:03:01,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 70 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-06-27 20:03:01,439 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 179 flow
[2024-06-27 20:03:01,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=57, PETRI_TRANSITIONS=50}
[2024-06-27 20:03:01,440 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places.
[2024-06-27 20:03:01,440 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 179 flow
[2024-06-27 20:03:01,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:01,441 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:01,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:01,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-06-27 20:03:01,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:01,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:01,442 INFO L85 PathProgramCache]: Analyzing trace with hash 630570155, now seen corresponding path program 1 times
[2024-06-27 20:03:01,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:01,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607383540]
[2024-06-27 20:03:01,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:01,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:02,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:02,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607383540]
[2024-06-27 20:03:02,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607383540] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:02,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:02,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-27 20:03:02,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758433012]
[2024-06-27 20:03:02,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:02,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-27 20:03:02,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:02,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-27 20:03:02,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-06-27 20:03:02,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52
[2024-06-27 20:03:02,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:02,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:02,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52
[2024-06-27 20:03:02,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:04,013 INFO L124 PetriNetUnfolderBase]: 9557/13397 cut-off events.
[2024-06-27 20:03:04,013 INFO L125 PetriNetUnfolderBase]: For 7039/7039 co-relation queries the response was YES.
[2024-06-27 20:03:04,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33636 conditions, 13397 events. 9557/13397 cut-off events. For 7039/7039 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 74030 event pairs, 5407 based on Foata normal form. 4/13315 useless extension candidates. Maximal degree in co-relation 33622. Up to 12912 conditions per place.
[2024-06-27 20:03:04,081 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 73 selfloop transitions, 17 changer transitions 0/98 dead transitions.
[2024-06-27 20:03:04,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 98 transitions, 506 flow
[2024-06-27 20:03:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-27 20:03:04,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-27 20:03:04,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 184 transitions.
[2024-06-27 20:03:04,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898
[2024-06-27 20:03:04,086 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 179 flow. Second operand 6 states and 184 transitions.
[2024-06-27 20:03:04,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 98 transitions, 506 flow
[2024-06-27 20:03:04,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 98 transitions, 478 flow, removed 6 selfloop flow, removed 2 redundant places.
[2024-06-27 20:03:04,091 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 256 flow
[2024-06-27 20:03:04,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=256, PETRI_PLACES=62, PETRI_TRANSITIONS=58}
[2024-06-27 20:03:04,092 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 7 predicate places.
[2024-06-27 20:03:04,092 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 256 flow
[2024-06-27 20:03:04,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:04,093 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:04,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:04,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-06-27 20:03:04,093 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:04,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:04,094 INFO L85 PathProgramCache]: Analyzing trace with hash 651841701, now seen corresponding path program 1 times
[2024-06-27 20:03:04,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:04,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710792431]
[2024-06-27 20:03:04,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:04,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:05,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:05,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710792431]
[2024-06-27 20:03:05,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710792431] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:05,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:05,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-27 20:03:05,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917629327]
[2024-06-27 20:03:05,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:05,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-27 20:03:05,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:05,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-27 20:03:05,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-06-27 20:03:05,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52
[2024-06-27 20:03:05,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 256 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:05,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:05,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52
[2024-06-27 20:03:05,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:07,388 INFO L124 PetriNetUnfolderBase]: 9541/13367 cut-off events.
[2024-06-27 20:03:07,388 INFO L125 PetriNetUnfolderBase]: For 14214/14214 co-relation queries the response was YES.
[2024-06-27 20:03:07,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37492 conditions, 13367 events. 9541/13367 cut-off events. For 14214/14214 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 73806 event pairs, 4602 based on Foata normal form. 8/13293 useless extension candidates. Maximal degree in co-relation 37476. Up to 12846 conditions per place.
[2024-06-27 20:03:07,450 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 80 selfloop transitions, 20 changer transitions 0/108 dead transitions.
[2024-06-27 20:03:07,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 108 transitions, 596 flow
[2024-06-27 20:03:07,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-27 20:03:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-27 20:03:07,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 209 transitions.
[2024-06-27 20:03:07,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5741758241758241
[2024-06-27 20:03:07,451 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 256 flow. Second operand 7 states and 209 transitions.
[2024-06-27 20:03:07,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 108 transitions, 596 flow
[2024-06-27 20:03:07,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 108 transitions, 557 flow, removed 6 selfloop flow, removed 3 redundant places.
[2024-06-27 20:03:07,456 INFO L231 Difference]: Finished difference. Result has 65 places, 60 transitions, 289 flow
[2024-06-27 20:03:07,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=289, PETRI_PLACES=65, PETRI_TRANSITIONS=60}
[2024-06-27 20:03:07,457 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 10 predicate places.
[2024-06-27 20:03:07,457 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 60 transitions, 289 flow
[2024-06-27 20:03:07,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:07,458 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:07,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:07,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-06-27 20:03:07,458 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:07,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:07,459 INFO L85 PathProgramCache]: Analyzing trace with hash 75418624, now seen corresponding path program 1 times
[2024-06-27 20:03:07,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:07,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910772717]
[2024-06-27 20:03:07,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:07,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:08,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:08,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910772717]
[2024-06-27 20:03:08,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910772717] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:08,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:08,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-27 20:03:08,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85985286]
[2024-06-27 20:03:08,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:08,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-27 20:03:08,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:08,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-27 20:03:08,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-06-27 20:03:08,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:08,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 289 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:08,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:08,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:08,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:09,518 INFO L124 PetriNetUnfolderBase]: 9523/13399 cut-off events.
[2024-06-27 20:03:09,518 INFO L125 PetriNetUnfolderBase]: For 22167/22167 co-relation queries the response was YES.
[2024-06-27 20:03:09,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40230 conditions, 13399 events. 9523/13399 cut-off events. For 22167/22167 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 74129 event pairs, 4907 based on Foata normal form. 6/13349 useless extension candidates. Maximal degree in co-relation 40212. Up to 12897 conditions per place.
[2024-06-27 20:03:09,575 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 65 selfloop transitions, 10 changer transitions 0/82 dead transitions.
[2024-06-27 20:03:09,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 82 transitions, 511 flow
[2024-06-27 20:03:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-27 20:03:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-27 20:03:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions.
[2024-06-27 20:03:09,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49230769230769234
[2024-06-27 20:03:09,579 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 289 flow. Second operand 5 states and 128 transitions.
[2024-06-27 20:03:09,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 82 transitions, 511 flow
[2024-06-27 20:03:09,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 82 transitions, 457 flow, removed 9 selfloop flow, removed 5 redundant places.
[2024-06-27 20:03:09,586 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 300 flow
[2024-06-27 20:03:09,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=300, PETRI_PLACES=65, PETRI_TRANSITIONS=64}
[2024-06-27 20:03:09,591 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 10 predicate places.
[2024-06-27 20:03:09,591 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 300 flow
[2024-06-27 20:03:09,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:09,591 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:09,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:09,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-06-27 20:03:09,592 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:09,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:09,592 INFO L85 PathProgramCache]: Analyzing trace with hash -285293131, now seen corresponding path program 1 times
[2024-06-27 20:03:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:09,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110248743]
[2024-06-27 20:03:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:09,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:10,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:10,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:10,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110248743]
[2024-06-27 20:03:10,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110248743] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:10,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:10,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-27 20:03:10,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894898985]
[2024-06-27 20:03:10,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:10,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-27 20:03:10,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:10,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-27 20:03:10,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-06-27 20:03:10,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:10,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 300 flow. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:10,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:10,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:10,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:11,644 INFO L124 PetriNetUnfolderBase]: 9598/13498 cut-off events.
[2024-06-27 20:03:11,644 INFO L125 PetriNetUnfolderBase]: For 31339/31339 co-relation queries the response was YES.
[2024-06-27 20:03:11,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43811 conditions, 13498 events. 9598/13498 cut-off events. For 31339/31339 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 74683 event pairs, 4663 based on Foata normal form. 6/13443 useless extension candidates. Maximal degree in co-relation 43791. Up to 12924 conditions per place.
[2024-06-27 20:03:11,721 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 80 selfloop transitions, 21 changer transitions 0/108 dead transitions.
[2024-06-27 20:03:11,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 108 transitions, 711 flow
[2024-06-27 20:03:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-27 20:03:11,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-27 20:03:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions.
[2024-06-27 20:03:11,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5160256410256411
[2024-06-27 20:03:11,723 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 300 flow. Second operand 6 states and 161 transitions.
[2024-06-27 20:03:11,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 108 transitions, 711 flow
[2024-06-27 20:03:11,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 108 transitions, 657 flow, removed 18 selfloop flow, removed 3 redundant places.
[2024-06-27 20:03:11,730 INFO L231 Difference]: Finished difference. Result has 69 places, 76 transitions, 422 flow
[2024-06-27 20:03:11,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=422, PETRI_PLACES=69, PETRI_TRANSITIONS=76}
[2024-06-27 20:03:11,730 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 14 predicate places.
[2024-06-27 20:03:11,731 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 76 transitions, 422 flow
[2024-06-27 20:03:11,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:11,731 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:11,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:11,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-06-27 20:03:11,731 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:11,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:11,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1826695033, now seen corresponding path program 2 times
[2024-06-27 20:03:11,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:11,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226926448]
[2024-06-27 20:03:11,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:11,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:12,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:12,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226926448]
[2024-06-27 20:03:12,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226926448] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:12,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:12,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-27 20:03:12,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823110311]
[2024-06-27 20:03:12,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:12,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-27 20:03:12,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:12,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-27 20:03:12,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-06-27 20:03:12,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:12,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 76 transitions, 422 flow. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:12,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:12,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:12,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:13,879 INFO L124 PetriNetUnfolderBase]: 9580/13479 cut-off events.
[2024-06-27 20:03:13,879 INFO L125 PetriNetUnfolderBase]: For 43564/43564 co-relation queries the response was YES.
[2024-06-27 20:03:13,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47782 conditions, 13479 events. 9580/13479 cut-off events. For 43564/43564 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 74487 event pairs, 4756 based on Foata normal form. 6/13425 useless extension candidates. Maximal degree in co-relation 47760. Up to 12960 conditions per place.
[2024-06-27 20:03:13,955 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 80 selfloop transitions, 14 changer transitions 0/101 dead transitions.
[2024-06-27 20:03:13,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 101 transitions, 676 flow
[2024-06-27 20:03:13,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-27 20:03:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-27 20:03:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions.
[2024-06-27 20:03:13,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717
[2024-06-27 20:03:13,957 INFO L175 Difference]: Start difference. First operand has 69 places, 76 transitions, 422 flow. Second operand 6 states and 152 transitions.
[2024-06-27 20:03:13,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 101 transitions, 676 flow
[2024-06-27 20:03:13,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 101 transitions, 630 flow, removed 22 selfloop flow, removed 1 redundant places.
[2024-06-27 20:03:13,976 INFO L231 Difference]: Finished difference. Result has 74 places, 76 transitions, 415 flow
[2024-06-27 20:03:13,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=74, PETRI_TRANSITIONS=76}
[2024-06-27 20:03:13,976 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 19 predicate places.
[2024-06-27 20:03:13,977 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 76 transitions, 415 flow
[2024-06-27 20:03:13,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:13,977 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:13,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:13,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-06-27 20:03:13,977 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:13,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:13,978 INFO L85 PathProgramCache]: Analyzing trace with hash -254156159, now seen corresponding path program 1 times
[2024-06-27 20:03:13,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:13,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477865967]
[2024-06-27 20:03:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:13,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:14,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:14,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:14,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477865967]
[2024-06-27 20:03:14,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477865967] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:14,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:14,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-27 20:03:14,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877371762]
[2024-06-27 20:03:14,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:14,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-27 20:03:14,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:14,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-27 20:03:14,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-06-27 20:03:15,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:15,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 76 transitions, 415 flow. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:15,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:15,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:15,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:16,768 INFO L124 PetriNetUnfolderBase]: 9624/13514 cut-off events.
[2024-06-27 20:03:16,768 INFO L125 PetriNetUnfolderBase]: For 49735/49735 co-relation queries the response was YES.
[2024-06-27 20:03:16,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48484 conditions, 13514 events. 9624/13514 cut-off events. For 49735/49735 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 74650 event pairs, 4668 based on Foata normal form. 6/13460 useless extension candidates. Maximal degree in co-relation 48459. Up to 12993 conditions per place.
[2024-06-27 20:03:16,857 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 93 selfloop transitions, 18 changer transitions 0/118 dead transitions.
[2024-06-27 20:03:16,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 118 transitions, 775 flow
[2024-06-27 20:03:16,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-27 20:03:16,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-27 20:03:16,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 182 transitions.
[2024-06-27 20:03:16,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5
[2024-06-27 20:03:16,859 INFO L175 Difference]: Start difference. First operand has 74 places, 76 transitions, 415 flow. Second operand 7 states and 182 transitions.
[2024-06-27 20:03:16,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 118 transitions, 775 flow
[2024-06-27 20:03:16,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 118 transitions, 728 flow, removed 3 selfloop flow, removed 6 redundant places.
[2024-06-27 20:03:16,882 INFO L231 Difference]: Finished difference. Result has 75 places, 80 transitions, 461 flow
[2024-06-27 20:03:16,882 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=461, PETRI_PLACES=75, PETRI_TRANSITIONS=80}
[2024-06-27 20:03:16,883 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 20 predicate places.
[2024-06-27 20:03:16,883 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 80 transitions, 461 flow
[2024-06-27 20:03:16,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:16,883 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:16,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:16,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-06-27 20:03:16,884 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:16,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:16,884 INFO L85 PathProgramCache]: Analyzing trace with hash 352092993, now seen corresponding path program 2 times
[2024-06-27 20:03:16,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:16,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142770223]
[2024-06-27 20:03:16,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:16,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:17,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:17,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:17,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142770223]
[2024-06-27 20:03:17,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142770223] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:17,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:17,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-27 20:03:17,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16998440]
[2024-06-27 20:03:17,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:17,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-27 20:03:17,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:17,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-27 20:03:17,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-06-27 20:03:18,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:18,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 80 transitions, 461 flow. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:18,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:18,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:18,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:19,599 INFO L124 PetriNetUnfolderBase]: 9699/13618 cut-off events.
[2024-06-27 20:03:19,600 INFO L125 PetriNetUnfolderBase]: For 64003/64003 co-relation queries the response was YES.
[2024-06-27 20:03:19,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52325 conditions, 13618 events. 9699/13618 cut-off events. For 64003/64003 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 75187 event pairs, 4479 based on Foata normal form. 6/13561 useless extension candidates. Maximal degree in co-relation 52301. Up to 12935 conditions per place.
[2024-06-27 20:03:19,676 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 86 selfloop transitions, 35 changer transitions 0/128 dead transitions.
[2024-06-27 20:03:19,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 128 transitions, 949 flow
[2024-06-27 20:03:19,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-27 20:03:19,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-27 20:03:19,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions.
[2024-06-27 20:03:19,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5164835164835165
[2024-06-27 20:03:19,678 INFO L175 Difference]: Start difference. First operand has 75 places, 80 transitions, 461 flow. Second operand 7 states and 188 transitions.
[2024-06-27 20:03:19,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 128 transitions, 949 flow
[2024-06-27 20:03:19,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 128 transitions, 888 flow, removed 15 selfloop flow, removed 5 redundant places.
[2024-06-27 20:03:19,698 INFO L231 Difference]: Finished difference. Result has 77 places, 88 transitions, 581 flow
[2024-06-27 20:03:19,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=581, PETRI_PLACES=77, PETRI_TRANSITIONS=88}
[2024-06-27 20:03:19,699 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 22 predicate places.
[2024-06-27 20:03:19,699 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 88 transitions, 581 flow
[2024-06-27 20:03:19,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:19,699 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:19,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:19,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-06-27 20:03:19,700 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:19,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:19,700 INFO L85 PathProgramCache]: Analyzing trace with hash -53783009, now seen corresponding path program 3 times
[2024-06-27 20:03:19,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:19,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694852556]
[2024-06-27 20:03:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:19,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:20,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:20,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694852556]
[2024-06-27 20:03:20,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694852556] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:20,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:20,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-27 20:03:20,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067461414]
[2024-06-27 20:03:20,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:20,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-27 20:03:20,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:20,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-27 20:03:20,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-06-27 20:03:20,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:20,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 88 transitions, 581 flow. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:20,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:20,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:20,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:21,993 INFO L124 PetriNetUnfolderBase]: 9681/13599 cut-off events.
[2024-06-27 20:03:21,993 INFO L125 PetriNetUnfolderBase]: For 81648/81648 co-relation queries the response was YES.
[2024-06-27 20:03:22,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55520 conditions, 13599 events. 9681/13599 cut-off events. For 81648/81648 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 74955 event pairs, 4675 based on Foata normal form. 6/13543 useless extension candidates. Maximal degree in co-relation 55495. Up to 13060 conditions per place.
[2024-06-27 20:03:22,088 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 96 selfloop transitions, 18 changer transitions 0/121 dead transitions.
[2024-06-27 20:03:22,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 121 transitions, 897 flow
[2024-06-27 20:03:22,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-27 20:03:22,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-27 20:03:22,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 177 transitions.
[2024-06-27 20:03:22,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48626373626373626
[2024-06-27 20:03:22,090 INFO L175 Difference]: Start difference. First operand has 77 places, 88 transitions, 581 flow. Second operand 7 states and 177 transitions.
[2024-06-27 20:03:22,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 121 transitions, 897 flow
[2024-06-27 20:03:22,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 121 transitions, 813 flow, removed 32 selfloop flow, removed 3 redundant places.
[2024-06-27 20:03:22,129 INFO L231 Difference]: Finished difference. Result has 81 places, 88 transitions, 544 flow
[2024-06-27 20:03:22,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=544, PETRI_PLACES=81, PETRI_TRANSITIONS=88}
[2024-06-27 20:03:22,130 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 26 predicate places.
[2024-06-27 20:03:22,130 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 88 transitions, 544 flow
[2024-06-27 20:03:22,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:22,131 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:22,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:22,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-06-27 20:03:22,131 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:22,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:22,131 INFO L85 PathProgramCache]: Analyzing trace with hash -330593045, now seen corresponding path program 1 times
[2024-06-27 20:03:22,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:22,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349826270]
[2024-06-27 20:03:22,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:22,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:23,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:23,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:23,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349826270]
[2024-06-27 20:03:23,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349826270] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:23,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:23,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-27 20:03:23,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858327130]
[2024-06-27 20:03:23,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:23,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-27 20:03:23,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:23,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-27 20:03:23,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-06-27 20:03:23,632 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52
[2024-06-27 20:03:23,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 88 transitions, 544 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:23,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:23,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52
[2024-06-27 20:03:23,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:25,278 INFO L124 PetriNetUnfolderBase]: 11757/16365 cut-off events.
[2024-06-27 20:03:25,278 INFO L125 PetriNetUnfolderBase]: For 107258/107258 co-relation queries the response was YES.
[2024-06-27 20:03:25,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66599 conditions, 16365 events. 11757/16365 cut-off events. For 107258/107258 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 89797 event pairs, 5691 based on Foata normal form. 6/16331 useless extension candidates. Maximal degree in co-relation 66572. Up to 15837 conditions per place.
[2024-06-27 20:03:25,382 INFO L140 encePairwiseOnDemand]: 41/52 looper letters, 101 selfloop transitions, 20 changer transitions 0/127 dead transitions.
[2024-06-27 20:03:25,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 127 transitions, 943 flow
[2024-06-27 20:03:25,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-27 20:03:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-27 20:03:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 170 transitions.
[2024-06-27 20:03:25,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46703296703296704
[2024-06-27 20:03:25,384 INFO L175 Difference]: Start difference. First operand has 81 places, 88 transitions, 544 flow. Second operand 7 states and 170 transitions.
[2024-06-27 20:03:25,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 127 transitions, 943 flow
[2024-06-27 20:03:25,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 127 transitions, 877 flow, removed 6 selfloop flow, removed 6 redundant places.
[2024-06-27 20:03:25,440 INFO L231 Difference]: Finished difference. Result has 83 places, 95 transitions, 616 flow
[2024-06-27 20:03:25,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=616, PETRI_PLACES=83, PETRI_TRANSITIONS=95}
[2024-06-27 20:03:25,441 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 28 predicate places.
[2024-06-27 20:03:25,441 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 95 transitions, 616 flow
[2024-06-27 20:03:25,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:25,441 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:25,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:25,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-06-27 20:03:25,442 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:25,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:25,442 INFO L85 PathProgramCache]: Analyzing trace with hash -54757577, now seen corresponding path program 1 times
[2024-06-27 20:03:25,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:25,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385582409]
[2024-06-27 20:03:25,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:25,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:26,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:26,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385582409]
[2024-06-27 20:03:26,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385582409] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:26,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:26,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-27 20:03:26,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321276665]
[2024-06-27 20:03:26,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:26,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-27 20:03:26,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:26,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-27 20:03:26,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-06-27 20:03:26,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:26,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 95 transitions, 616 flow. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:26,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:26,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:26,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:27,744 INFO L124 PetriNetUnfolderBase]: 11135/15977 cut-off events.
[2024-06-27 20:03:27,745 INFO L125 PetriNetUnfolderBase]: For 125204/125210 co-relation queries the response was YES.
[2024-06-27 20:03:27,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68278 conditions, 15977 events. 11135/15977 cut-off events. For 125204/125210 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 92012 event pairs, 5731 based on Foata normal form. 10/15964 useless extension candidates. Maximal degree in co-relation 68249. Up to 15072 conditions per place.
[2024-06-27 20:03:27,829 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 94 selfloop transitions, 10 changer transitions 0/114 dead transitions.
[2024-06-27 20:03:27,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 114 transitions, 902 flow
[2024-06-27 20:03:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-27 20:03:27,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-27 20:03:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions.
[2024-06-27 20:03:27,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47692307692307695
[2024-06-27 20:03:27,830 INFO L175 Difference]: Start difference. First operand has 83 places, 95 transitions, 616 flow. Second operand 5 states and 124 transitions.
[2024-06-27 20:03:27,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 114 transitions, 902 flow
[2024-06-27 20:03:27,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 114 transitions, 832 flow, removed 18 selfloop flow, removed 4 redundant places.
[2024-06-27 20:03:27,867 INFO L231 Difference]: Finished difference. Result has 84 places, 99 transitions, 623 flow
[2024-06-27 20:03:27,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=623, PETRI_PLACES=84, PETRI_TRANSITIONS=99}
[2024-06-27 20:03:27,868 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 29 predicate places.
[2024-06-27 20:03:27,868 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 99 transitions, 623 flow
[2024-06-27 20:03:27,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:27,868 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:27,869 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:27,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-06-27 20:03:27,869 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:27,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:27,869 INFO L85 PathProgramCache]: Analyzing trace with hash -752358888, now seen corresponding path program 1 times
[2024-06-27 20:03:27,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:27,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368637337]
[2024-06-27 20:03:27,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:27,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:29,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:29,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368637337]
[2024-06-27 20:03:29,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368637337] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:29,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:29,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-27 20:03:29,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580861232]
[2024-06-27 20:03:29,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:29,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-27 20:03:29,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:29,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-27 20:03:29,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-27 20:03:29,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:29,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 99 transitions, 623 flow. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:29,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:29,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:29,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:30,999 INFO L124 PetriNetUnfolderBase]: 11630/16455 cut-off events.
[2024-06-27 20:03:30,999 INFO L125 PetriNetUnfolderBase]: For 146237/146237 co-relation queries the response was YES.
[2024-06-27 20:03:31,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73760 conditions, 16455 events. 11630/16455 cut-off events. For 146237/146237 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 93733 event pairs, 5236 based on Foata normal form. 6/16459 useless extension candidates. Maximal degree in co-relation 73730. Up to 15586 conditions per place.
[2024-06-27 20:03:31,123 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 129 selfloop transitions, 30 changer transitions 0/167 dead transitions.
[2024-06-27 20:03:31,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 167 transitions, 1281 flow
[2024-06-27 20:03:31,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-27 20:03:31,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-27 20:03:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 239 transitions.
[2024-06-27 20:03:31,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5106837606837606
[2024-06-27 20:03:31,127 INFO L175 Difference]: Start difference. First operand has 84 places, 99 transitions, 623 flow. Second operand 9 states and 239 transitions.
[2024-06-27 20:03:31,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 167 transitions, 1281 flow
[2024-06-27 20:03:31,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 167 transitions, 1234 flow, removed 16 selfloop flow, removed 3 redundant places.
[2024-06-27 20:03:31,189 INFO L231 Difference]: Finished difference. Result has 90 places, 107 transitions, 767 flow
[2024-06-27 20:03:31,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=767, PETRI_PLACES=90, PETRI_TRANSITIONS=107}
[2024-06-27 20:03:31,190 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 35 predicate places.
[2024-06-27 20:03:31,190 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 107 transitions, 767 flow
[2024-06-27 20:03:31,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:31,190 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:31,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:31,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-06-27 20:03:31,191 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:31,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:31,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1973737184, now seen corresponding path program 2 times
[2024-06-27 20:03:31,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:31,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788892958]
[2024-06-27 20:03:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:31,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:32,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:32,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:32,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788892958]
[2024-06-27 20:03:32,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788892958] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:32,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:32,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-27 20:03:32,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990301640]
[2024-06-27 20:03:32,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:32,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-27 20:03:32,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:32,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-27 20:03:32,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-27 20:03:32,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:32,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 107 transitions, 767 flow. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:32,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:32,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:32,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:34,410 INFO L124 PetriNetUnfolderBase]: 11612/16438 cut-off events.
[2024-06-27 20:03:34,410 INFO L125 PetriNetUnfolderBase]: For 172333/172333 co-relation queries the response was YES.
[2024-06-27 20:03:34,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77422 conditions, 16438 events. 11612/16438 cut-off events. For 172333/172333 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 93643 event pairs, 5243 based on Foata normal form. 6/16440 useless extension candidates. Maximal degree in co-relation 77391. Up to 15622 conditions per place.
[2024-06-27 20:03:34,540 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 123 selfloop transitions, 22 changer transitions 0/153 dead transitions.
[2024-06-27 20:03:34,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 153 transitions, 1179 flow
[2024-06-27 20:03:34,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-27 20:03:34,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-27 20:03:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 207 transitions.
[2024-06-27 20:03:34,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49759615384615385
[2024-06-27 20:03:34,542 INFO L175 Difference]: Start difference. First operand has 90 places, 107 transitions, 767 flow. Second operand 8 states and 207 transitions.
[2024-06-27 20:03:34,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 153 transitions, 1179 flow
[2024-06-27 20:03:34,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 153 transitions, 1067 flow, removed 45 selfloop flow, removed 5 redundant places.
[2024-06-27 20:03:34,642 INFO L231 Difference]: Finished difference. Result has 93 places, 107 transitions, 710 flow
[2024-06-27 20:03:34,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=710, PETRI_PLACES=93, PETRI_TRANSITIONS=107}
[2024-06-27 20:03:34,642 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 38 predicate places.
[2024-06-27 20:03:34,642 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 107 transitions, 710 flow
[2024-06-27 20:03:34,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:34,643 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:34,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:34,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-06-27 20:03:34,643 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:34,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:34,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1865384786, now seen corresponding path program 3 times
[2024-06-27 20:03:34,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:34,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780829037]
[2024-06-27 20:03:34,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:34,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:35,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:35,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780829037]
[2024-06-27 20:03:35,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780829037] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:35,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:35,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-27 20:03:35,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381746932]
[2024-06-27 20:03:35,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:35,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-27 20:03:35,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:35,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-27 20:03:35,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-06-27 20:03:35,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:35,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 107 transitions, 710 flow. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:35,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:35,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:35,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:37,635 INFO L124 PetriNetUnfolderBase]: 11645/16543 cut-off events.
[2024-06-27 20:03:37,636 INFO L125 PetriNetUnfolderBase]: For 187968/187972 co-relation queries the response was YES.
[2024-06-27 20:03:37,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78862 conditions, 16543 events. 11645/16543 cut-off events. For 187968/187972 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 94761 event pairs, 4927 based on Foata normal form. 10/16549 useless extension candidates. Maximal degree in co-relation 78829. Up to 15436 conditions per place.
[2024-06-27 20:03:37,761 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 107 selfloop transitions, 49 changer transitions 0/164 dead transitions.
[2024-06-27 20:03:37,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 164 transitions, 1366 flow
[2024-06-27 20:03:37,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-27 20:03:37,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-27 20:03:37,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 214 transitions.
[2024-06-27 20:03:37,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144230769230769
[2024-06-27 20:03:37,763 INFO L175 Difference]: Start difference. First operand has 93 places, 107 transitions, 710 flow. Second operand 8 states and 214 transitions.
[2024-06-27 20:03:37,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 164 transitions, 1366 flow
[2024-06-27 20:03:37,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 164 transitions, 1311 flow, removed 3 selfloop flow, removed 7 redundant places.
[2024-06-27 20:03:37,831 INFO L231 Difference]: Finished difference. Result has 95 places, 115 transitions, 926 flow
[2024-06-27 20:03:37,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=926, PETRI_PLACES=95, PETRI_TRANSITIONS=115}
[2024-06-27 20:03:37,831 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 40 predicate places.
[2024-06-27 20:03:37,831 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 115 transitions, 926 flow
[2024-06-27 20:03:37,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:37,832 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:37,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:37,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-06-27 20:03:37,832 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:37,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:37,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1352118166, now seen corresponding path program 1 times
[2024-06-27 20:03:37,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:37,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299453967]
[2024-06-27 20:03:37,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:37,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:38,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:38,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:38,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299453967]
[2024-06-27 20:03:38,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299453967] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:38,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:38,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-27 20:03:38,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302987852]
[2024-06-27 20:03:38,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:38,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-27 20:03:38,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:38,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-27 20:03:38,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-06-27 20:03:39,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52
[2024-06-27 20:03:39,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 115 transitions, 926 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:39,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:39,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52
[2024-06-27 20:03:39,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:41,080 INFO L124 PetriNetUnfolderBase]: 11976/16918 cut-off events.
[2024-06-27 20:03:41,081 INFO L125 PetriNetUnfolderBase]: For 222498/222498 co-relation queries the response was YES.
[2024-06-27 20:03:41,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85282 conditions, 16918 events. 11976/16918 cut-off events. For 222498/222498 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 94385 event pairs, 5595 based on Foata normal form. 3/16921 useless extension candidates. Maximal degree in co-relation 85247. Up to 16122 conditions per place.
[2024-06-27 20:03:41,191 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 124 selfloop transitions, 25 changer transitions 0/155 dead transitions.
[2024-06-27 20:03:41,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 155 transitions, 1413 flow
[2024-06-27 20:03:41,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-27 20:03:41,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-27 20:03:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 171 transitions.
[2024-06-27 20:03:41,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4697802197802198
[2024-06-27 20:03:41,206 INFO L175 Difference]: Start difference. First operand has 95 places, 115 transitions, 926 flow. Second operand 7 states and 171 transitions.
[2024-06-27 20:03:41,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 155 transitions, 1413 flow
[2024-06-27 20:03:41,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 155 transitions, 1326 flow, removed 28 selfloop flow, removed 4 redundant places.
[2024-06-27 20:03:41,298 INFO L231 Difference]: Finished difference. Result has 98 places, 123 transitions, 1026 flow
[2024-06-27 20:03:41,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1026, PETRI_PLACES=98, PETRI_TRANSITIONS=123}
[2024-06-27 20:03:41,298 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 43 predicate places.
[2024-06-27 20:03:41,299 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 123 transitions, 1026 flow
[2024-06-27 20:03:41,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:41,299 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:41,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:41,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-06-27 20:03:41,299 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:41,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:41,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1666082996, now seen corresponding path program 4 times
[2024-06-27 20:03:41,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:41,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560482686]
[2024-06-27 20:03:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:41,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:42,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:42,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:42,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560482686]
[2024-06-27 20:03:42,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560482686] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:42,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:42,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-27 20:03:42,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015510708]
[2024-06-27 20:03:42,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:42,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-27 20:03:42,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:42,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-27 20:03:42,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-06-27 20:03:42,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:42,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 123 transitions, 1026 flow. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:42,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:42,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:42,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:44,375 INFO L124 PetriNetUnfolderBase]: 11647/16487 cut-off events.
[2024-06-27 20:03:44,375 INFO L125 PetriNetUnfolderBase]: For 239771/239771 co-relation queries the response was YES.
[2024-06-27 20:03:44,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85208 conditions, 16487 events. 11647/16487 cut-off events. For 239771/239771 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 94073 event pairs, 5087 based on Foata normal form. 9/16496 useless extension candidates. Maximal degree in co-relation 85171. Up to 15520 conditions per place.
[2024-06-27 20:03:44,532 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 123 selfloop transitions, 40 changer transitions 0/171 dead transitions.
[2024-06-27 20:03:44,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 171 transitions, 1634 flow
[2024-06-27 20:03:44,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-27 20:03:44,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-27 20:03:44,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 206 transitions.
[2024-06-27 20:03:44,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4951923076923077
[2024-06-27 20:03:44,534 INFO L175 Difference]: Start difference. First operand has 98 places, 123 transitions, 1026 flow. Second operand 8 states and 206 transitions.
[2024-06-27 20:03:44,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 171 transitions, 1634 flow
[2024-06-27 20:03:44,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 171 transitions, 1554 flow, removed 20 selfloop flow, removed 5 redundant places.
[2024-06-27 20:03:44,692 INFO L231 Difference]: Finished difference. Result has 101 places, 127 transitions, 1118 flow
[2024-06-27 20:03:44,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1118, PETRI_PLACES=101, PETRI_TRANSITIONS=127}
[2024-06-27 20:03:44,693 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 46 predicate places.
[2024-06-27 20:03:44,693 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 127 transitions, 1118 flow
[2024-06-27 20:03:44,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:44,693 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:44,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:44,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-06-27 20:03:44,693 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:44,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:44,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1059166498, now seen corresponding path program 1 times
[2024-06-27 20:03:44,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:44,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651936183]
[2024-06-27 20:03:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:44,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:45,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:45,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651936183]
[2024-06-27 20:03:45,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651936183] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:45,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:45,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-27 20:03:45,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710199964]
[2024-06-27 20:03:45,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:45,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-27 20:03:45,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:45,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-27 20:03:45,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-06-27 20:03:46,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:46,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 127 transitions, 1118 flow. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:46,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:46,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:46,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:48,289 INFO L124 PetriNetUnfolderBase]: 12059/16949 cut-off events.
[2024-06-27 20:03:48,290 INFO L125 PetriNetUnfolderBase]: For 293574/293574 co-relation queries the response was YES.
[2024-06-27 20:03:48,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93325 conditions, 16949 events. 12059/16949 cut-off events. For 293574/293574 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 96246 event pairs, 4517 based on Foata normal form. 24/16973 useless extension candidates. Maximal degree in co-relation 93287. Up to 15746 conditions per place.
[2024-06-27 20:03:48,451 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 162 selfloop transitions, 36 changer transitions 0/206 dead transitions.
[2024-06-27 20:03:48,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 206 transitions, 1952 flow
[2024-06-27 20:03:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-27 20:03:48,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-27 20:03:48,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 268 transitions.
[2024-06-27 20:03:48,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5153846153846153
[2024-06-27 20:03:48,455 INFO L175 Difference]: Start difference. First operand has 101 places, 127 transitions, 1118 flow. Second operand 10 states and 268 transitions.
[2024-06-27 20:03:48,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 206 transitions, 1952 flow
[2024-06-27 20:03:48,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 206 transitions, 1785 flow, removed 38 selfloop flow, removed 6 redundant places.
[2024-06-27 20:03:48,605 INFO L231 Difference]: Finished difference. Result has 105 places, 131 transitions, 1144 flow
[2024-06-27 20:03:48,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1144, PETRI_PLACES=105, PETRI_TRANSITIONS=131}
[2024-06-27 20:03:48,605 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 50 predicate places.
[2024-06-27 20:03:48,606 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 131 transitions, 1144 flow
[2024-06-27 20:03:48,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:48,606 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:48,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:48,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-06-27 20:03:48,606 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:48,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:48,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1996936466, now seen corresponding path program 2 times
[2024-06-27 20:03:48,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:48,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872408825]
[2024-06-27 20:03:48,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:48,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:49,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:49,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872408825]
[2024-06-27 20:03:49,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872408825] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:49,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:49,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-27 20:03:49,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958302597]
[2024-06-27 20:03:49,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:49,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-27 20:03:49,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:49,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-27 20:03:49,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-27 20:03:50,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:50,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 131 transitions, 1144 flow. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:50,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:50,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:50,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:52,309 INFO L124 PetriNetUnfolderBase]: 12118/17100 cut-off events.
[2024-06-27 20:03:52,309 INFO L125 PetriNetUnfolderBase]: For 326974/326974 co-relation queries the response was YES.
[2024-06-27 20:03:52,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95570 conditions, 17100 events. 12118/17100 cut-off events. For 326974/326974 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 97735 event pairs, 5089 based on Foata normal form. 54/17154 useless extension candidates. Maximal degree in co-relation 95531. Up to 15958 conditions per place.
[2024-06-27 20:03:52,462 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 160 selfloop transitions, 34 changer transitions 0/202 dead transitions.
[2024-06-27 20:03:52,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 202 transitions, 1800 flow
[2024-06-27 20:03:52,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-27 20:03:52,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-27 20:03:52,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 262 transitions.
[2024-06-27 20:03:52,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5038461538461538
[2024-06-27 20:03:52,472 INFO L175 Difference]: Start difference. First operand has 105 places, 131 transitions, 1144 flow. Second operand 10 states and 262 transitions.
[2024-06-27 20:03:52,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 202 transitions, 1800 flow
[2024-06-27 20:03:52,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 202 transitions, 1729 flow, removed 18 selfloop flow, removed 6 redundant places.
[2024-06-27 20:03:52,628 INFO L231 Difference]: Finished difference. Result has 109 places, 133 transitions, 1218 flow
[2024-06-27 20:03:52,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1073, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1218, PETRI_PLACES=109, PETRI_TRANSITIONS=133}
[2024-06-27 20:03:52,629 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 54 predicate places.
[2024-06-27 20:03:52,629 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 133 transitions, 1218 flow
[2024-06-27 20:03:52,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:52,629 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:52,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:52,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-06-27 20:03:52,630 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:52,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:52,630 INFO L85 PathProgramCache]: Analyzing trace with hash -940833670, now seen corresponding path program 1 times
[2024-06-27 20:03:52,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:52,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814587337]
[2024-06-27 20:03:52,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:52,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:53,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:53,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814587337]
[2024-06-27 20:03:53,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814587337] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:53,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:53,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-27 20:03:53,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634595782]
[2024-06-27 20:03:53,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:53,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-27 20:03:53,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:53,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-27 20:03:53,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2024-06-27 20:03:54,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52
[2024-06-27 20:03:54,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 133 transitions, 1218 flow. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:54,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:54,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52
[2024-06-27 20:03:54,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:03:56,284 INFO L124 PetriNetUnfolderBase]: 12483/17512 cut-off events.
[2024-06-27 20:03:56,285 INFO L125 PetriNetUnfolderBase]: For 354227/354231 co-relation queries the response was YES.
[2024-06-27 20:03:56,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99845 conditions, 17512 events. 12483/17512 cut-off events. For 354227/354231 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 97627 event pairs, 5189 based on Foata normal form. 10/17515 useless extension candidates. Maximal degree in co-relation 99804. Up to 16768 conditions per place.
[2024-06-27 20:03:56,433 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 144 selfloop transitions, 35 changer transitions 0/185 dead transitions.
[2024-06-27 20:03:56,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 1789 flow
[2024-06-27 20:03:56,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-27 20:03:56,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-27 20:03:56,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 201 transitions.
[2024-06-27 20:03:56,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4831730769230769
[2024-06-27 20:03:56,435 INFO L175 Difference]: Start difference. First operand has 109 places, 133 transitions, 1218 flow. Second operand 8 states and 201 transitions.
[2024-06-27 20:03:56,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 1789 flow
[2024-06-27 20:03:56,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 185 transitions, 1712 flow, removed 9 selfloop flow, removed 8 redundant places.
[2024-06-27 20:03:56,626 INFO L231 Difference]: Finished difference. Result has 110 places, 140 transitions, 1327 flow
[2024-06-27 20:03:56,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1141, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1327, PETRI_PLACES=110, PETRI_TRANSITIONS=140}
[2024-06-27 20:03:56,627 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 55 predicate places.
[2024-06-27 20:03:56,627 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 140 transitions, 1327 flow
[2024-06-27 20:03:56,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:56,627 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:03:56,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:03:56,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-06-27 20:03:56,628 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:03:56,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:03:56,628 INFO L85 PathProgramCache]: Analyzing trace with hash -941018368, now seen corresponding path program 3 times
[2024-06-27 20:03:56,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:03:56,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93952194]
[2024-06-27 20:03:56,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:03:56,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:03:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:03:58,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:03:58,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:03:58,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93952194]
[2024-06-27 20:03:58,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93952194] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:03:58,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:03:58,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-27 20:03:58,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946108417]
[2024-06-27 20:03:58,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:03:58,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-27 20:03:58,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:03:58,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-27 20:03:58,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2024-06-27 20:03:58,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:03:58,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 140 transitions, 1327 flow. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:03:58,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:03:58,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:03:58,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:04:00,667 INFO L124 PetriNetUnfolderBase]: 12329/17437 cut-off events.
[2024-06-27 20:04:00,667 INFO L125 PetriNetUnfolderBase]: For 403518/403518 co-relation queries the response was YES.
[2024-06-27 20:04:00,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103405 conditions, 17437 events. 12329/17437 cut-off events. For 403518/403518 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 100299 event pairs, 4676 based on Foata normal form. 42/17470 useless extension candidates. Maximal degree in co-relation 103362. Up to 16199 conditions per place.
[2024-06-27 20:04:00,838 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 141 selfloop transitions, 50 changer transitions 0/200 dead transitions.
[2024-06-27 20:04:00,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 200 transitions, 1959 flow
[2024-06-27 20:04:00,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-27 20:04:00,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-27 20:04:00,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 238 transitions.
[2024-06-27 20:04:00,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5085470085470085
[2024-06-27 20:04:00,840 INFO L175 Difference]: Start difference. First operand has 110 places, 140 transitions, 1327 flow. Second operand 9 states and 238 transitions.
[2024-06-27 20:04:00,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 200 transitions, 1959 flow
[2024-06-27 20:04:01,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 200 transitions, 1831 flow, removed 32 selfloop flow, removed 5 redundant places.
[2024-06-27 20:04:01,024 INFO L231 Difference]: Finished difference. Result has 114 places, 142 transitions, 1380 flow
[2024-06-27 20:04:01,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1199, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1380, PETRI_PLACES=114, PETRI_TRANSITIONS=142}
[2024-06-27 20:04:01,025 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 59 predicate places.
[2024-06-27 20:04:01,025 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 142 transitions, 1380 flow
[2024-06-27 20:04:01,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:01,025 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:04:01,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:04:01,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-06-27 20:04:01,026 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:04:01,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:04:01,027 INFO L85 PathProgramCache]: Analyzing trace with hash -445523798, now seen corresponding path program 1 times
[2024-06-27 20:04:01,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:04:01,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307501550]
[2024-06-27 20:04:01,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:04:01,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:04:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:04:01,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:04:01,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:04:01,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307501550]
[2024-06-27 20:04:01,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307501550] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:04:01,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:04:01,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-27 20:04:01,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096610745]
[2024-06-27 20:04:01,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:04:01,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-27 20:04:01,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:04:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-27 20:04:01,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-06-27 20:04:01,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:04:01,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 142 transitions, 1380 flow. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:01,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:04:01,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:04:01,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:04:04,600 INFO L124 PetriNetUnfolderBase]: 12257/17407 cut-off events.
[2024-06-27 20:04:04,600 INFO L125 PetriNetUnfolderBase]: For 440426/440463 co-relation queries the response was YES.
[2024-06-27 20:04:04,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106317 conditions, 17407 events. 12257/17407 cut-off events. For 440426/440463 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 99642 event pairs, 5293 based on Foata normal form. 11/17365 useless extension candidates. Maximal degree in co-relation 106273. Up to 16522 conditions per place.
[2024-06-27 20:04:04,737 INFO L140 encePairwiseOnDemand]: 41/52 looper letters, 144 selfloop transitions, 24 changer transitions 0/182 dead transitions.
[2024-06-27 20:04:04,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 182 transitions, 2008 flow
[2024-06-27 20:04:04,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-27 20:04:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-27 20:04:04,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions.
[2024-06-27 20:04:04,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5
[2024-06-27 20:04:04,740 INFO L175 Difference]: Start difference. First operand has 114 places, 142 transitions, 1380 flow. Second operand 6 states and 156 transitions.
[2024-06-27 20:04:04,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 182 transitions, 2008 flow
[2024-06-27 20:04:04,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 182 transitions, 1887 flow, removed 13 selfloop flow, removed 7 redundant places.
[2024-06-27 20:04:04,931 INFO L231 Difference]: Finished difference. Result has 114 places, 154 transitions, 1479 flow
[2024-06-27 20:04:04,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1259, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1479, PETRI_PLACES=114, PETRI_TRANSITIONS=154}
[2024-06-27 20:04:04,932 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 59 predicate places.
[2024-06-27 20:04:04,932 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 154 transitions, 1479 flow
[2024-06-27 20:04:04,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:04,932 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:04:04,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:04:04,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-06-27 20:04:04,932 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:04:04,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:04:04,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2015007866, now seen corresponding path program 2 times
[2024-06-27 20:04:04,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:04:04,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258587092]
[2024-06-27 20:04:04,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:04:04,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:04:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:04:06,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:04:06,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:04:06,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258587092]
[2024-06-27 20:04:06,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258587092] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:04:06,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:04:06,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-27 20:04:06,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027669886]
[2024-06-27 20:04:06,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:04:06,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-27 20:04:06,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:04:06,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-27 20:04:06,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2024-06-27 20:04:06,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52
[2024-06-27 20:04:06,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 154 transitions, 1479 flow. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:06,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:04:06,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52
[2024-06-27 20:04:06,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:04:09,075 INFO L124 PetriNetUnfolderBase]: 12865/18055 cut-off events.
[2024-06-27 20:04:09,076 INFO L125 PetriNetUnfolderBase]: For 472089/472089 co-relation queries the response was YES.
[2024-06-27 20:04:09,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113382 conditions, 18055 events. 12865/18055 cut-off events. For 472089/472089 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 100787 event pairs, 5340 based on Foata normal form. 6/18061 useless extension candidates. Maximal degree in co-relation 113336. Up to 17385 conditions per place.
[2024-06-27 20:04:09,224 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 163 selfloop transitions, 28 changer transitions 0/197 dead transitions.
[2024-06-27 20:04:09,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 197 transitions, 2045 flow
[2024-06-27 20:04:09,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-27 20:04:09,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-27 20:04:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 194 transitions.
[2024-06-27 20:04:09,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46634615384615385
[2024-06-27 20:04:09,226 INFO L175 Difference]: Start difference. First operand has 114 places, 154 transitions, 1479 flow. Second operand 8 states and 194 transitions.
[2024-06-27 20:04:09,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 197 transitions, 2045 flow
[2024-06-27 20:04:09,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 197 transitions, 1993 flow, removed 25 selfloop flow, removed 1 redundant places.
[2024-06-27 20:04:09,459 INFO L231 Difference]: Finished difference. Result has 121 places, 157 transitions, 1580 flow
[2024-06-27 20:04:09,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1427, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1580, PETRI_PLACES=121, PETRI_TRANSITIONS=157}
[2024-06-27 20:04:09,460 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 66 predicate places.
[2024-06-27 20:04:09,460 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 157 transitions, 1580 flow
[2024-06-27 20:04:09,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:09,460 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:04:09,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:04:09,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-06-27 20:04:09,461 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:04:09,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:04:09,461 INFO L85 PathProgramCache]: Analyzing trace with hash 127395508, now seen corresponding path program 1 times
[2024-06-27 20:04:09,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:04:09,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269228817]
[2024-06-27 20:04:09,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:04:09,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:04:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:04:10,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:04:10,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:04:10,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269228817]
[2024-06-27 20:04:10,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269228817] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:04:10,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:04:10,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-27 20:04:10,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132956981]
[2024-06-27 20:04:10,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:04:10,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-27 20:04:10,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:04:10,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-27 20:04:10,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-06-27 20:04:10,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52
[2024-06-27 20:04:10,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 157 transitions, 1580 flow. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:10,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:04:10,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52
[2024-06-27 20:04:10,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:04:13,609 INFO L124 PetriNetUnfolderBase]: 12894/18094 cut-off events.
[2024-06-27 20:04:13,609 INFO L125 PetriNetUnfolderBase]: For 512805/512805 co-relation queries the response was YES.
[2024-06-27 20:04:13,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116455 conditions, 18094 events. 12894/18094 cut-off events. For 512805/512805 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 100754 event pairs, 5353 based on Foata normal form. 3/18097 useless extension candidates. Maximal degree in co-relation 116406. Up to 17409 conditions per place.
[2024-06-27 20:04:13,779 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 162 selfloop transitions, 33 changer transitions 0/201 dead transitions.
[2024-06-27 20:04:13,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 201 transitions, 2110 flow
[2024-06-27 20:04:13,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-27 20:04:13,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-27 20:04:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 195 transitions.
[2024-06-27 20:04:13,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46875
[2024-06-27 20:04:13,781 INFO L175 Difference]: Start difference. First operand has 121 places, 157 transitions, 1580 flow. Second operand 8 states and 195 transitions.
[2024-06-27 20:04:13,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 201 transitions, 2110 flow
[2024-06-27 20:04:14,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 201 transitions, 1941 flow, removed 59 selfloop flow, removed 6 redundant places.
[2024-06-27 20:04:14,097 INFO L231 Difference]: Finished difference. Result has 123 places, 161 transitions, 1535 flow
[2024-06-27 20:04:14,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1411, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1535, PETRI_PLACES=123, PETRI_TRANSITIONS=161}
[2024-06-27 20:04:14,097 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 68 predicate places.
[2024-06-27 20:04:14,097 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 161 transitions, 1535 flow
[2024-06-27 20:04:14,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:14,098 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:04:14,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:04:14,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-06-27 20:04:14,098 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:04:14,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:04:14,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2015304536, now seen corresponding path program 3 times
[2024-06-27 20:04:14,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:04:14,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395919700]
[2024-06-27 20:04:14,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:04:14,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:04:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:04:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:04:15,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:04:15,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395919700]
[2024-06-27 20:04:15,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395919700] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:04:15,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:04:15,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-27 20:04:15,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176764172]
[2024-06-27 20:04:15,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:04:15,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-27 20:04:15,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:04:15,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-27 20:04:15,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2024-06-27 20:04:15,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52
[2024-06-27 20:04:15,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 161 transitions, 1535 flow. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:15,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:04:15,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52
[2024-06-27 20:04:15,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:04:18,178 INFO L124 PetriNetUnfolderBase]: 12930/18146 cut-off events.
[2024-06-27 20:04:18,179 INFO L125 PetriNetUnfolderBase]: For 541540/541540 co-relation queries the response was YES.
[2024-06-27 20:04:18,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117897 conditions, 18146 events. 12930/18146 cut-off events. For 541540/541540 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 101023 event pairs, 5280 based on Foata normal form. 6/18152 useless extension candidates. Maximal degree in co-relation 117847. Up to 17491 conditions per place.
[2024-06-27 20:04:18,341 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 175 selfloop transitions, 23 changer transitions 0/204 dead transitions.
[2024-06-27 20:04:18,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 204 transitions, 2119 flow
[2024-06-27 20:04:18,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-27 20:04:18,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-27 20:04:18,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 193 transitions.
[2024-06-27 20:04:18,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4639423076923077
[2024-06-27 20:04:18,343 INFO L175 Difference]: Start difference. First operand has 123 places, 161 transitions, 1535 flow. Second operand 8 states and 193 transitions.
[2024-06-27 20:04:18,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 204 transitions, 2119 flow
[2024-06-27 20:04:18,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 204 transitions, 2048 flow, removed 0 selfloop flow, removed 7 redundant places.
[2024-06-27 20:04:18,595 INFO L231 Difference]: Finished difference. Result has 124 places, 164 transitions, 1612 flow
[2024-06-27 20:04:18,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1464, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1612, PETRI_PLACES=124, PETRI_TRANSITIONS=164}
[2024-06-27 20:04:18,595 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 69 predicate places.
[2024-06-27 20:04:18,595 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 164 transitions, 1612 flow
[2024-06-27 20:04:18,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:18,596 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:04:18,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:04:18,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-06-27 20:04:18,596 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:04:18,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:04:18,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1778832506, now seen corresponding path program 4 times
[2024-06-27 20:04:18,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:04:18,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788853725]
[2024-06-27 20:04:18,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:04:18,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:04:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:04:19,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:04:19,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:04:19,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788853725]
[2024-06-27 20:04:19,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788853725] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:04:19,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:04:19,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-27 20:04:19,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686243707]
[2024-06-27 20:04:19,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:04:19,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-27 20:04:19,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:04:19,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-27 20:04:19,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2024-06-27 20:04:20,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52
[2024-06-27 20:04:20,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 164 transitions, 1612 flow. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:20,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:04:20,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52
[2024-06-27 20:04:20,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:04:22,900 INFO L124 PetriNetUnfolderBase]: 12915/18125 cut-off events.
[2024-06-27 20:04:22,900 INFO L125 PetriNetUnfolderBase]: For 585392/585392 co-relation queries the response was YES.
[2024-06-27 20:04:22,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120525 conditions, 18125 events. 12915/18125 cut-off events. For 585392/585392 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 101006 event pairs, 5364 based on Foata normal form. 6/18131 useless extension candidates. Maximal degree in co-relation 120474. Up to 17448 conditions per place.
[2024-06-27 20:04:23,082 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 178 selfloop transitions, 28 changer transitions 0/212 dead transitions.
[2024-06-27 20:04:23,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 212 transitions, 2259 flow
[2024-06-27 20:04:23,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-27 20:04:23,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-27 20:04:23,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 196 transitions.
[2024-06-27 20:04:23,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47115384615384615
[2024-06-27 20:04:23,084 INFO L175 Difference]: Start difference. First operand has 124 places, 164 transitions, 1612 flow. Second operand 8 states and 196 transitions.
[2024-06-27 20:04:23,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 212 transitions, 2259 flow
[2024-06-27 20:04:23,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 212 transitions, 2137 flow, removed 40 selfloop flow, removed 6 redundant places.
[2024-06-27 20:04:23,450 INFO L231 Difference]: Finished difference. Result has 127 places, 171 transitions, 1701 flow
[2024-06-27 20:04:23,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1490, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1701, PETRI_PLACES=127, PETRI_TRANSITIONS=171}
[2024-06-27 20:04:23,451 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 72 predicate places.
[2024-06-27 20:04:23,451 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 171 transitions, 1701 flow
[2024-06-27 20:04:23,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:23,452 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:04:23,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:04:23,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-06-27 20:04:23,452 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:04:23,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:04:23,459 INFO L85 PathProgramCache]: Analyzing trace with hash -108964302, now seen corresponding path program 4 times
[2024-06-27 20:04:23,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:04:23,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444931314]
[2024-06-27 20:04:23,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:04:23,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:04:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:04:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:04:24,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:04:24,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444931314]
[2024-06-27 20:04:24,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444931314] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:04:24,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:04:24,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-27 20:04:24,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15465318]
[2024-06-27 20:04:24,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:04:24,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-27 20:04:24,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:04:24,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-27 20:04:24,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-27 20:04:24,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:04:24,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 171 transitions, 1701 flow. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:24,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:04:24,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:04:24,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-27 20:04:27,741 INFO L124 PetriNetUnfolderBase]: 12509/17697 cut-off events.
[2024-06-27 20:04:27,742 INFO L125 PetriNetUnfolderBase]: For 635763/635763 co-relation queries the response was YES.
[2024-06-27 20:04:27,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120778 conditions, 17697 events. 12509/17697 cut-off events. For 635763/635763 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 101495 event pairs, 5145 based on Foata normal form. 36/17731 useless extension candidates. Maximal degree in co-relation 120725. Up to 16548 conditions per place.
[2024-06-27 20:04:27,906 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 167 selfloop transitions, 49 changer transitions 0/226 dead transitions.
[2024-06-27 20:04:27,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 226 transitions, 2379 flow
[2024-06-27 20:04:27,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-27 20:04:27,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-27 20:04:27,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 230 transitions.
[2024-06-27 20:04:27,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49145299145299143
[2024-06-27 20:04:27,908 INFO L175 Difference]: Start difference. First operand has 127 places, 171 transitions, 1701 flow. Second operand 9 states and 230 transitions.
[2024-06-27 20:04:27,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 226 transitions, 2379 flow
[2024-06-27 20:04:28,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 226 transitions, 2231 flow, removed 49 selfloop flow, removed 5 redundant places.
[2024-06-27 20:04:28,173 INFO L231 Difference]: Finished difference. Result has 131 places, 173 transitions, 1749 flow
[2024-06-27 20:04:28,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1553, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1749, PETRI_PLACES=131, PETRI_TRANSITIONS=173}
[2024-06-27 20:04:28,174 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 76 predicate places.
[2024-06-27 20:04:28,174 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 173 transitions, 1749 flow
[2024-06-27 20:04:28,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:28,175 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-27 20:04:28,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-27 20:04:28,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-06-27 20:04:28,175 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-27 20:04:28,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-27 20:04:28,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1082367338, now seen corresponding path program 2 times
[2024-06-27 20:04:28,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-27 20:04:28,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276512580]
[2024-06-27 20:04:28,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-27 20:04:28,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-27 20:04:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-27 20:04:28,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-27 20:04:28,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-27 20:04:28,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276512580]
[2024-06-27 20:04:28,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276512580] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-27 20:04:28,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-27 20:04:28,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-27 20:04:28,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954807222]
[2024-06-27 20:04:28,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-27 20:04:28,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-27 20:04:28,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-27 20:04:28,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-27 20:04:28,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-06-27 20:04:29,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52
[2024-06-27 20:04:29,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 173 transitions, 1749 flow. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-27 20:04:29,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-27 20:04:29,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52
[2024-06-27 20:04:29,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand