./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/protection/mix027_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version cde23df1
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/mix027_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-05-21_14-57-05.files/protection/mix027_power.oepc_pso.oepc_rmo.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-cde23df-m
[2024-06-14 12:13:05,700 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-06-14 12:13:05,779 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-06-14 12:13:05,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-06-14 12:13:05,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-06-14 12:13:05,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-06-14 12:13:05,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-06-14 12:13:05,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-06-14 12:13:05,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-06-14 12:13:05,813 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-06-14 12:13:05,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-06-14 12:13:05,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-06-14 12:13:05,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-06-14 12:13:05,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-06-14 12:13:05,815 INFO L153 SettingsManager]: * Use SBE=true
[2024-06-14 12:13:05,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-06-14 12:13:05,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-06-14 12:13:05,816 INFO L153 SettingsManager]: * sizeof long=4
[2024-06-14 12:13:05,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-06-14 12:13:05,816 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-06-14 12:13:05,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-06-14 12:13:05,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-06-14 12:13:05,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-06-14 12:13:05,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-06-14 12:13:05,818 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-06-14 12:13:05,818 INFO L153 SettingsManager]: * sizeof long double=12
[2024-06-14 12:13:05,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-06-14 12:13:05,818 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-06-14 12:13:05,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-06-14 12:13:05,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-06-14 12:13:05,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-06-14 12:13:05,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-06-14 12:13:05,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-06-14 12:13:05,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-06-14 12:13:05,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-06-14 12:13:05,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-06-14 12:13:05,821 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-06-14 12:13:05,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-06-14 12:13:05,821 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-06-14 12:13:05,821 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-06-14 12:13:05,821 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2024-06-14 12:13:05,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-06-14 12:13:05,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-06-14 12:13:05,822 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false
[2024-06-14 12:13:06,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-06-14 12:13:06,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-06-14 12:13:06,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-06-14 12:13:06,064 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-06-14 12:13:06,064 INFO L274 PluginConnector]: Witness Parser initialized
[2024-06-14 12:13:06,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/mix027_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml
[2024-06-14 12:13:06,217 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-06-14 12:13:06,218 INFO L274 PluginConnector]: CDTParser initialized
[2024-06-14 12:13:06,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i
[2024-06-14 12:13:07,312 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-06-14 12:13:07,555 INFO L384 CDTParser]: Found 1 translation units.
[2024-06-14 12:13:07,556 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i
[2024-06-14 12:13:07,575 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad557c550/e7ffcebcbf30432d84cbc9fc975cfb14/FLAGfadad4193
[2024-06-14 12:13:07,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad557c550/e7ffcebcbf30432d84cbc9fc975cfb14
[2024-06-14 12:13:07,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-06-14 12:13:07,590 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-06-14 12:13:07,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-06-14 12:13:07,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-06-14 12:13:07,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-06-14 12:13:07,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 12:13:06" (1/2) ...
[2024-06-14 12:13:07,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e07bf8e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:13:07, skipping insertion in model container
[2024-06-14 12:13:07,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 12:13:06" (1/2) ...
[2024-06-14 12:13:07,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a2820b1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:13:07, skipping insertion in model container
[2024-06-14 12:13:07,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 12:13:07" (2/2) ...
[2024-06-14 12:13:07,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e07bf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:07, skipping insertion in model container
[2024-06-14 12:13:07,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 12:13:07" (2/2) ...
[2024-06-14 12:13:07,600 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness
[2024-06-14 12:13:07,682 INFO L95 edCorrectnessWitness]: Found the following entries in the witness:
[2024-06-14 12:13:07,684 INFO L97 edCorrectnessWitness]: Location invariant before [L871-L871] (((((((((((((((((((((! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1)))) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1)))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || (((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 2) && __unbuffered_p3_EAX <= 127) && ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)
[2024-06-14 12:13:07,684 INFO L97 edCorrectnessWitness]: Location invariant before [L867-L867] (((((((((((((((((((((! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1)))) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1)))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || (((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 2) && __unbuffered_p3_EAX <= 127) && ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)
[2024-06-14 12:13:07,684 INFO L97 edCorrectnessWitness]: Location invariant before [L869-L869] (((((((((((((((((((((! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1)))) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1)))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || (((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 2) && __unbuffered_p3_EAX <= 127) && ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)
[2024-06-14 12:13:07,684 INFO L97 edCorrectnessWitness]: Location invariant before [L872-L872] (((((((((((((((((((((! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1)))) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1)))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || (((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 2) && __unbuffered_p3_EAX <= 127) && ((__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) || __unbuffered_p3_EAX == 2)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)
[2024-06-14 12:13:07,684 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0
[2024-06-14 12:13:07,685 INFO L106 edCorrectnessWitness]: ghost_update [L865-L865] multithreaded = 1;
[2024-06-14 12:13:07,724 INFO L177 MainTranslator]: Built tables and reachable declarations
[2024-06-14 12:13:08,082 INFO L207 PostProcessor]: Analyzing one entry point: main
[2024-06-14 12:13:08,093 INFO L202 MainTranslator]: Completed pre-run
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
[2024-06-14 12:13:08,246 INFO L207 PostProcessor]: Analyzing one entry point: main
[2024-06-14 12:13:08,319 INFO L206 MainTranslator]: Completed translation
[2024-06-14 12:13:08,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08 WrapperNode
[2024-06-14 12:13:08,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-06-14 12:13:08,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-06-14 12:13:08,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-06-14 12:13:08,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-06-14 12:13:08,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,388 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 138
[2024-06-14 12:13:08,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-06-14 12:13:08,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-06-14 12:13:08,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-06-14 12:13:08,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-06-14 12:13:08,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,402 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,428 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].
[2024-06-14 12:13:08,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,444 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-06-14 12:13:08,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-06-14 12:13:08,445 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-06-14 12:13:08,445 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-06-14 12:13:08,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (1/1) ...
[2024-06-14 12:13:08,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-06-14 12:13:08,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-06-14 12:13:08,495 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)
[2024-06-14 12:13:08,507 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
[2024-06-14 12:13:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-06-14 12:13:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-06-14 12:13:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2024-06-14 12:13:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2024-06-14 12:13:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2024-06-14 12:13:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2024-06-14 12:13:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2024-06-14 12:13:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2024-06-14 12:13:08,541 INFO L130 BoogieDeclarations]: Found specification of procedure P3
[2024-06-14 12:13:08,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P3
[2024-06-14 12:13:08,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-06-14 12:13:08,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-06-14 12:13:08,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-06-14 12:13:08,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-06-14 12:13:08,542 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2024-06-14 12:13:08,644 INFO L244 CfgBuilder]: Building ICFG
[2024-06-14 12:13:08,645 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-06-14 12:13:08,994 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program.
[2024-06-14 12:13:08,994 INFO L293 CfgBuilder]: Performing block encoding
[2024-06-14 12:13:09,170 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-06-14 12:13:09,170 INFO L320 CfgBuilder]: Removed 0 assume(true) statements.
[2024-06-14 12:13:09,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 12:13:09 BoogieIcfgContainer
[2024-06-14 12:13:09,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-06-14 12:13:09,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-06-14 12:13:09,173 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-06-14 12:13:09,176 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-06-14 12:13:09,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 12:13:06" (1/4) ...
[2024-06-14 12:13:09,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c18327 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 12:13:09, skipping insertion in model container
[2024-06-14 12:13:09,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 12:13:07" (2/4) ...
[2024-06-14 12:13:09,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c18327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 12:13:09, skipping insertion in model container
[2024-06-14 12:13:09,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:13:08" (3/4) ...
[2024-06-14 12:13:09,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c18327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 12:13:09, skipping insertion in model container
[2024-06-14 12:13:09,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 12:13:09" (4/4) ...
[2024-06-14 12:13:09,178 INFO L112 eAbstractionObserver]: Analyzing ICFG mix027_power.oepc_pso.oepc_rmo.oepc.i
[2024-06-14 12:13:09,192 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-06-14 12:13:09,192 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2024-06-14 12:13:09,192 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-06-14 12:13:09,235 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-06-14 12:13:09,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 53 transitions, 122 flow
[2024-06-14 12:13:09,296 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events.
[2024-06-14 12:13:09,297 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-06-14 12:13:09,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.
[2024-06-14 12:13:09,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 53 transitions, 122 flow
[2024-06-14 12:13:09,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 43 transitions, 98 flow
[2024-06-14 12:13:09,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-06-14 12:13:09,327 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;@39590dd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-06-14 12:13:09,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2024-06-14 12:13:09,332 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-06-14 12:13:09,332 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events.
[2024-06-14 12:13:09,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-06-14 12:13:09,333 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:09,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:09,333 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)] ===
[2024-06-14 12:13:09,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:09,337 INFO L85 PathProgramCache]: Analyzing trace with hash -485745775, now seen corresponding path program 1 times
[2024-06-14 12:13:09,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:09,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747121766]
[2024-06-14 12:13:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:09,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:10,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:10,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747121766]
[2024-06-14 12:13:10,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747121766] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:10,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:10,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-06-14 12:13:10,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449033418]
[2024-06-14 12:13:10,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:10,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-06-14 12:13:10,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:10,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-06-14 12:13:10,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-06-14 12:13:10,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53
[2024-06-14 12:13:10,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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)
[2024-06-14 12:13:10,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:10,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53
[2024-06-14 12:13:10,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:12,652 INFO L124 PetriNetUnfolderBase]: 11595/16042 cut-off events.
[2024-06-14 12:13:12,652 INFO L125 PetriNetUnfolderBase]: For 213/213 co-relation queries the response was YES.
[2024-06-14 12:13:12,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32180 conditions, 16042 events. 11595/16042 cut-off events. For 213/213 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 87061 event pairs, 9068 based on Foata normal form. 1/15819 useless extension candidates. Maximal degree in co-relation 32164. Up to 15685 conditions per place.
[2024-06-14 12:13:12,782 INFO L140 encePairwiseOnDemand]: 44/53 looper letters, 46 selfloop transitions, 5 changer transitions 0/57 dead transitions.
[2024-06-14 12:13:12,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 57 transitions, 237 flow
[2024-06-14 12:13:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-06-14 12:13:12,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-06-14 12:13:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions.
[2024-06-14 12:13:12,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5911949685534591
[2024-06-14 12:13:12,792 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 98 flow. Second operand 3 states and 94 transitions.
[2024-06-14 12:13:12,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 57 transitions, 237 flow
[2024-06-14 12:13:12,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-06-14 12:13:12,797 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 133 flow
[2024-06-14 12:13:12,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=55, PETRI_TRANSITIONS=47}
[2024-06-14 12:13:12,800 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places.
[2024-06-14 12:13:12,801 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 133 flow
[2024-06-14 12:13:12,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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)
[2024-06-14 12:13:12,801 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:12,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:12,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-06-14 12:13:12,801 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)] ===
[2024-06-14 12:13:12,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:12,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1349774128, now seen corresponding path program 1 times
[2024-06-14 12:13:12,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:12,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102718358]
[2024-06-14 12:13:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:12,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:13,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:13,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102718358]
[2024-06-14 12:13:13,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102718358] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:13,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:13,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-06-14 12:13:13,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975549184]
[2024-06-14 12:13:13,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:13,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-06-14 12:13:13,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:13,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-06-14 12:13:13,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-06-14 12:13:13,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53
[2024-06-14 12:13:13,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 47 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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)
[2024-06-14 12:13:13,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:13,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53
[2024-06-14 12:13:13,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:15,172 INFO L124 PetriNetUnfolderBase]: 11585/16036 cut-off events.
[2024-06-14 12:13:15,172 INFO L125 PetriNetUnfolderBase]: For 2898/2898 co-relation queries the response was YES.
[2024-06-14 12:13:15,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36157 conditions, 16036 events. 11585/16036 cut-off events. For 2898/2898 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 87390 event pairs, 8249 based on Foata normal form. 4/16037 useless extension candidates. Maximal degree in co-relation 36142. Up to 15650 conditions per place.
[2024-06-14 12:13:15,238 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 56 selfloop transitions, 9 changer transitions 0/71 dead transitions.
[2024-06-14 12:13:15,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 329 flow
[2024-06-14 12:13:15,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-06-14 12:13:15,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-06-14 12:13:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions.
[2024-06-14 12:13:15,240 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5707547169811321
[2024-06-14 12:13:15,240 INFO L175 Difference]: Start difference. First operand has 55 places, 47 transitions, 133 flow. Second operand 4 states and 121 transitions.
[2024-06-14 12:13:15,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 329 flow
[2024-06-14 12:13:15,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 71 transitions, 324 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-06-14 12:13:15,242 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 181 flow
[2024-06-14 12:13:15,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=181, PETRI_PLACES=58, PETRI_TRANSITIONS=51}
[2024-06-14 12:13:15,243 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places.
[2024-06-14 12:13:15,243 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 181 flow
[2024-06-14 12:13:15,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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)
[2024-06-14 12:13:15,244 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:15,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:15,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-06-14 12:13:15,244 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)] ===
[2024-06-14 12:13:15,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:15,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1106674036, now seen corresponding path program 1 times
[2024-06-14 12:13:15,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:15,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975080331]
[2024-06-14 12:13:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:15,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:16,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:16,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975080331]
[2024-06-14 12:13:16,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975080331] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:16,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:16,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-06-14 12:13:16,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95320001]
[2024-06-14 12:13:16,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:16,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-06-14 12:13:16,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:16,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-06-14 12:13:16,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-06-14 12:13:16,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53
[2024-06-14 12:13:16,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 181 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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)
[2024-06-14 12:13:16,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:16,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53
[2024-06-14 12:13:16,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:17,886 INFO L124 PetriNetUnfolderBase]: 11693/16127 cut-off events.
[2024-06-14 12:13:17,886 INFO L125 PetriNetUnfolderBase]: For 8530/8530 co-relation queries the response was YES.
[2024-06-14 12:13:17,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40480 conditions, 16127 events. 11693/16127 cut-off events. For 8530/8530 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 87381 event pairs, 6700 based on Foata normal form. 10/16127 useless extension candidates. Maximal degree in co-relation 40463. Up to 15623 conditions per place.
[2024-06-14 12:13:18,048 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 76 selfloop transitions, 21 changer transitions 0/103 dead transitions.
[2024-06-14 12:13:18,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 103 transitions, 553 flow
[2024-06-14 12:13:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 12:13:18,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 12:13:18,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions.
[2024-06-14 12:13:18,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6037735849056604
[2024-06-14 12:13:18,062 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 181 flow. Second operand 5 states and 160 transitions.
[2024-06-14 12:13:18,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 103 transitions, 553 flow
[2024-06-14 12:13:18,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 103 transitions, 534 flow, removed 3 selfloop flow, removed 2 redundant places.
[2024-06-14 12:13:18,071 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 314 flow
[2024-06-14 12:13:18,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=314, PETRI_PLACES=63, PETRI_TRANSITIONS=65}
[2024-06-14 12:13:18,073 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places.
[2024-06-14 12:13:18,073 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 314 flow
[2024-06-14 12:13:18,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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)
[2024-06-14 12:13:18,074 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:18,074 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:18,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-06-14 12:13:18,074 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)] ===
[2024-06-14 12:13:18,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:18,075 INFO L85 PathProgramCache]: Analyzing trace with hash 52844239, now seen corresponding path program 1 times
[2024-06-14 12:13:18,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:18,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423736270]
[2024-06-14 12:13:18,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:18,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:19,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:19,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:19,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423736270]
[2024-06-14 12:13:19,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423736270] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:19,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:19,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 12:13:19,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850945791]
[2024-06-14 12:13:19,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:19,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 12:13:19,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:19,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 12:13:19,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-06-14 12:13:19,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53
[2024-06-14 12:13:19,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 314 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)
[2024-06-14 12:13:19,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:19,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53
[2024-06-14 12:13:19,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:20,812 INFO L124 PetriNetUnfolderBase]: 11739/16255 cut-off events.
[2024-06-14 12:13:20,813 INFO L125 PetriNetUnfolderBase]: For 20678/20678 co-relation queries the response was YES.
[2024-06-14 12:13:20,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48004 conditions, 16255 events. 11739/16255 cut-off events. For 20678/20678 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 88514 event pairs, 5879 based on Foata normal form. 10/16255 useless extension candidates. Maximal degree in co-relation 47984. Up to 15619 conditions per place.
[2024-06-14 12:13:20,917 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 87 selfloop transitions, 26 changer transitions 0/119 dead transitions.
[2024-06-14 12:13:20,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 119 transitions, 734 flow
[2024-06-14 12:13:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:13:20,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:13:20,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 189 transitions.
[2024-06-14 12:13:20,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5943396226415094
[2024-06-14 12:13:20,922 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 314 flow. Second operand 6 states and 189 transitions.
[2024-06-14 12:13:20,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 119 transitions, 734 flow
[2024-06-14 12:13:20,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 119 transitions, 722 flow, removed 6 selfloop flow, removed 0 redundant places.
[2024-06-14 12:13:20,935 INFO L231 Difference]: Finished difference. Result has 69 places, 70 transitions, 408 flow
[2024-06-14 12:13:20,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=69, PETRI_TRANSITIONS=70}
[2024-06-14 12:13:20,937 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 13 predicate places.
[2024-06-14 12:13:20,937 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 70 transitions, 408 flow
[2024-06-14 12:13:20,937 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)
[2024-06-14 12:13:20,937 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:20,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:20,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-06-14 12:13:20,938 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-14 12:13:20,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:20,938 INFO L85 PathProgramCache]: Analyzing trace with hash -80171279, now seen corresponding path program 1 times
[2024-06-14 12:13:20,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:20,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554241232]
[2024-06-14 12:13:20,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:20,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:22,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:22,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:22,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554241232]
[2024-06-14 12:13:22,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554241232] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:22,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:22,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 12:13:22,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058403358]
[2024-06-14 12:13:22,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:22,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 12:13:22,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:22,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 12:13:22,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-06-14 12:13:22,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53
[2024-06-14 12:13:22,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 70 transitions, 408 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)
[2024-06-14 12:13:22,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:22,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53
[2024-06-14 12:13:22,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:24,542 INFO L124 PetriNetUnfolderBase]: 11954/16593 cut-off events.
[2024-06-14 12:13:24,542 INFO L125 PetriNetUnfolderBase]: For 33158/33164 co-relation queries the response was YES.
[2024-06-14 12:13:24,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54212 conditions, 16593 events. 11954/16593 cut-off events. For 33158/33164 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 91012 event pairs, 4656 based on Foata normal form. 41/16626 useless extension candidates. Maximal degree in co-relation 54189. Up to 15556 conditions per place.
[2024-06-14 12:13:24,687 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 102 selfloop transitions, 44 changer transitions 0/152 dead transitions.
[2024-06-14 12:13:24,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 152 transitions, 1086 flow
[2024-06-14 12:13:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:13:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:13:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 223 transitions.
[2024-06-14 12:13:24,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.601078167115903
[2024-06-14 12:13:24,690 INFO L175 Difference]: Start difference. First operand has 69 places, 70 transitions, 408 flow. Second operand 7 states and 223 transitions.
[2024-06-14 12:13:24,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 152 transitions, 1086 flow
[2024-06-14 12:13:24,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 152 transitions, 1020 flow, removed 10 selfloop flow, removed 4 redundant places.
[2024-06-14 12:13:24,706 INFO L231 Difference]: Finished difference. Result has 75 places, 89 transitions, 667 flow
[2024-06-14 12:13:24,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=667, PETRI_PLACES=75, PETRI_TRANSITIONS=89}
[2024-06-14 12:13:24,713 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 19 predicate places.
[2024-06-14 12:13:24,713 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 89 transitions, 667 flow
[2024-06-14 12:13:24,713 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)
[2024-06-14 12:13:24,713 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:24,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:24,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-06-14 12:13:24,714 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)] ===
[2024-06-14 12:13:24,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:24,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1231945210, now seen corresponding path program 1 times
[2024-06-14 12:13:24,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:24,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456265479]
[2024-06-14 12:13:24,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:24,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:25,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:25,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456265479]
[2024-06-14 12:13:25,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456265479] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:25,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:25,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 12:13:25,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759117186]
[2024-06-14 12:13:25,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:25,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 12:13:25,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:25,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 12:13:25,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-06-14 12:13:25,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53
[2024-06-14 12:13:25,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 89 transitions, 667 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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)
[2024-06-14 12:13:25,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:25,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53
[2024-06-14 12:13:25,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:27,242 INFO L124 PetriNetUnfolderBase]: 11936/16556 cut-off events.
[2024-06-14 12:13:27,242 INFO L125 PetriNetUnfolderBase]: For 60087/60087 co-relation queries the response was YES.
[2024-06-14 12:13:27,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62605 conditions, 16556 events. 11936/16556 cut-off events. For 60087/60087 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 90681 event pairs, 5782 based on Foata normal form. 6/16559 useless extension candidates. Maximal degree in co-relation 62577. Up to 16157 conditions per place.
[2024-06-14 12:13:27,355 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 87 selfloop transitions, 13 changer transitions 0/106 dead transitions.
[2024-06-14 12:13:27,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 106 transitions, 911 flow
[2024-06-14 12:13:27,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 12:13:27,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 12:13:27,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 125 transitions.
[2024-06-14 12:13:27,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4716981132075472
[2024-06-14 12:13:27,357 INFO L175 Difference]: Start difference. First operand has 75 places, 89 transitions, 667 flow. Second operand 5 states and 125 transitions.
[2024-06-14 12:13:27,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 106 transitions, 911 flow
[2024-06-14 12:13:27,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 106 transitions, 861 flow, removed 25 selfloop flow, removed 0 redundant places.
[2024-06-14 12:13:27,388 INFO L231 Difference]: Finished difference. Result has 80 places, 89 transitions, 657 flow
[2024-06-14 12:13:27,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=657, PETRI_PLACES=80, PETRI_TRANSITIONS=89}
[2024-06-14 12:13:27,389 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 24 predicate places.
[2024-06-14 12:13:27,389 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 89 transitions, 657 flow
[2024-06-14 12:13:27,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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)
[2024-06-14 12:13:27,389 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:27,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:27,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-06-14 12:13:27,390 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)] ===
[2024-06-14 12:13:27,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:27,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1809882969, now seen corresponding path program 1 times
[2024-06-14 12:13:27,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:27,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486929833]
[2024-06-14 12:13:27,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:27,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:28,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:28,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486929833]
[2024-06-14 12:13:28,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486929833] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:28,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:28,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 12:13:28,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762886520]
[2024-06-14 12:13:28,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:28,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 12:13:28,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:28,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 12:13:28,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-06-14 12:13:28,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53
[2024-06-14 12:13:28,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 89 transitions, 657 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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)
[2024-06-14 12:13:28,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:28,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53
[2024-06-14 12:13:28,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:30,037 INFO L124 PetriNetUnfolderBase]: 11962/16583 cut-off events.
[2024-06-14 12:13:30,037 INFO L125 PetriNetUnfolderBase]: For 66306/66306 co-relation queries the response was YES.
[2024-06-14 12:13:30,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63012 conditions, 16583 events. 11962/16583 cut-off events. For 66306/66306 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 90798 event pairs, 5477 based on Foata normal form. 12/16589 useless extension candidates. Maximal degree in co-relation 62980. Up to 16004 conditions per place.
[2024-06-14 12:13:30,134 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 94 selfloop transitions, 25 changer transitions 0/125 dead transitions.
[2024-06-14 12:13:30,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 125 transitions, 1065 flow
[2024-06-14 12:13:30,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:13:30,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:13:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions.
[2024-06-14 12:13:30,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5
[2024-06-14 12:13:30,136 INFO L175 Difference]: Start difference. First operand has 80 places, 89 transitions, 657 flow. Second operand 6 states and 159 transitions.
[2024-06-14 12:13:30,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 125 transitions, 1065 flow
[2024-06-14 12:13:30,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 125 transitions, 1024 flow, removed 6 selfloop flow, removed 4 redundant places.
[2024-06-14 12:13:30,161 INFO L231 Difference]: Finished difference. Result has 82 places, 93 transitions, 725 flow
[2024-06-14 12:13:30,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=725, PETRI_PLACES=82, PETRI_TRANSITIONS=93}
[2024-06-14 12:13:30,162 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 26 predicate places.
[2024-06-14 12:13:30,162 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 93 transitions, 725 flow
[2024-06-14 12:13:30,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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)
[2024-06-14 12:13:30,162 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:30,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:30,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-06-14 12:13:30,162 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)] ===
[2024-06-14 12:13:30,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:30,163 INFO L85 PathProgramCache]: Analyzing trace with hash -360383501, now seen corresponding path program 2 times
[2024-06-14 12:13:30,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:30,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663828479]
[2024-06-14 12:13:30,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:30,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:30,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663828479]
[2024-06-14 12:13:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663828479] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:30,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:30,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 12:13:30,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818962592]
[2024-06-14 12:13:30,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:30,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 12:13:30,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:30,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 12:13:30,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-06-14 12:13:31,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53
[2024-06-14 12:13:31,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 93 transitions, 725 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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)
[2024-06-14 12:13:31,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:31,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53
[2024-06-14 12:13:31,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:32,693 INFO L124 PetriNetUnfolderBase]: 11911/16513 cut-off events.
[2024-06-14 12:13:32,693 INFO L125 PetriNetUnfolderBase]: For 75390/75390 co-relation queries the response was YES.
[2024-06-14 12:13:32,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64087 conditions, 16513 events. 11911/16513 cut-off events. For 75390/75390 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 90203 event pairs, 5746 based on Foata normal form. 6/16516 useless extension candidates. Maximal degree in co-relation 64055. Up to 16103 conditions per place.
[2024-06-14 12:13:32,816 INFO L140 encePairwiseOnDemand]: 41/53 looper letters, 98 selfloop transitions, 14 changer transitions 0/118 dead transitions.
[2024-06-14 12:13:32,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 118 transitions, 1015 flow
[2024-06-14 12:13:32,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:13:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:13:32,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions.
[2024-06-14 12:13:32,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46540880503144655
[2024-06-14 12:13:32,817 INFO L175 Difference]: Start difference. First operand has 82 places, 93 transitions, 725 flow. Second operand 6 states and 148 transitions.
[2024-06-14 12:13:32,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 118 transitions, 1015 flow
[2024-06-14 12:13:32,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 118 transitions, 972 flow, removed 7 selfloop flow, removed 3 redundant places.
[2024-06-14 12:13:32,870 INFO L231 Difference]: Finished difference. Result has 85 places, 93 transitions, 721 flow
[2024-06-14 12:13:32,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=721, PETRI_PLACES=85, PETRI_TRANSITIONS=93}
[2024-06-14 12:13:32,871 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 29 predicate places.
[2024-06-14 12:13:32,871 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 93 transitions, 721 flow
[2024-06-14 12:13:32,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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)
[2024-06-14 12:13:32,871 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:32,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:32,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-06-14 12:13:32,872 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)] ===
[2024-06-14 12:13:32,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:32,872 INFO L85 PathProgramCache]: Analyzing trace with hash 278473291, now seen corresponding path program 1 times
[2024-06-14 12:13:32,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:32,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986855380]
[2024-06-14 12:13:32,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:32,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:34,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:34,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:34,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986855380]
[2024-06-14 12:13:34,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986855380] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:34,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:34,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:13:34,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405525139]
[2024-06-14 12:13:34,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:34,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:13:34,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:34,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:13:34,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:13:34,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53
[2024-06-14 12:13:34,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 93 transitions, 721 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:13:34,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:34,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53
[2024-06-14 12:13:34,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:36,324 INFO L124 PetriNetUnfolderBase]: 14451/19754 cut-off events.
[2024-06-14 12:13:36,325 INFO L125 PetriNetUnfolderBase]: For 102037/102037 co-relation queries the response was YES.
[2024-06-14 12:13:36,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76806 conditions, 19754 events. 14451/19754 cut-off events. For 102037/102037 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 105690 event pairs, 7020 based on Foata normal form. 6/19757 useless extension candidates. Maximal degree in co-relation 76773. Up to 19454 conditions per place.
[2024-06-14 12:13:36,508 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 107 selfloop transitions, 20 changer transitions 0/132 dead transitions.
[2024-06-14 12:13:36,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 132 transitions, 1128 flow
[2024-06-14 12:13:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:13:36,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:13:36,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 165 transitions.
[2024-06-14 12:13:36,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.444743935309973
[2024-06-14 12:13:36,510 INFO L175 Difference]: Start difference. First operand has 85 places, 93 transitions, 721 flow. Second operand 7 states and 165 transitions.
[2024-06-14 12:13:36,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 132 transitions, 1128 flow
[2024-06-14 12:13:36,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 132 transitions, 1058 flow, removed 4 selfloop flow, removed 6 redundant places.
[2024-06-14 12:13:36,582 INFO L231 Difference]: Finished difference. Result has 87 places, 100 transitions, 785 flow
[2024-06-14 12:13:36,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=785, PETRI_PLACES=87, PETRI_TRANSITIONS=100}
[2024-06-14 12:13:36,583 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 31 predicate places.
[2024-06-14 12:13:36,583 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 100 transitions, 785 flow
[2024-06-14 12:13:36,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:13:36,584 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:36,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:36,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-06-14 12:13:36,584 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-14 12:13:36,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:36,584 INFO L85 PathProgramCache]: Analyzing trace with hash -99988612, now seen corresponding path program 1 times
[2024-06-14 12:13:36,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:36,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624873797]
[2024-06-14 12:13:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:36,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:37,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:37,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624873797]
[2024-06-14 12:13:37,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624873797] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:37,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:37,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 12:13:37,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378428916]
[2024-06-14 12:13:37,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:37,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 12:13:37,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:37,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 12:13:37,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-06-14 12:13:37,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53
[2024-06-14 12:13:37,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 100 transitions, 785 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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)
[2024-06-14 12:13:37,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:37,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53
[2024-06-14 12:13:37,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:39,159 INFO L124 PetriNetUnfolderBase]: 14444/19969 cut-off events.
[2024-06-14 12:13:39,159 INFO L125 PetriNetUnfolderBase]: For 119057/119057 co-relation queries the response was YES.
[2024-06-14 12:13:39,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81253 conditions, 19969 events. 14444/19969 cut-off events. For 119057/119057 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 108201 event pairs, 7127 based on Foata normal form. 2/19968 useless extension candidates. Maximal degree in co-relation 81219. Up to 19511 conditions per place.
[2024-06-14 12:13:39,321 INFO L140 encePairwiseOnDemand]: 44/53 looper letters, 103 selfloop transitions, 10 changer transitions 0/118 dead transitions.
[2024-06-14 12:13:39,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 118 transitions, 1085 flow
[2024-06-14 12:13:39,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 12:13:39,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 12:13:39,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions.
[2024-06-14 12:13:39,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4377358490566038
[2024-06-14 12:13:39,323 INFO L175 Difference]: Start difference. First operand has 87 places, 100 transitions, 785 flow. Second operand 5 states and 116 transitions.
[2024-06-14 12:13:39,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 118 transitions, 1085 flow
[2024-06-14 12:13:39,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 118 transitions, 1025 flow, removed 13 selfloop flow, removed 4 redundant places.
[2024-06-14 12:13:39,396 INFO L231 Difference]: Finished difference. Result has 88 places, 104 transitions, 800 flow
[2024-06-14 12:13:39,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=800, PETRI_PLACES=88, PETRI_TRANSITIONS=104}
[2024-06-14 12:13:39,397 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 32 predicate places.
[2024-06-14 12:13:39,397 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 104 transitions, 800 flow
[2024-06-14 12:13:39,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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)
[2024-06-14 12:13:39,398 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:39,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:39,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-06-14 12:13:39,398 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)] ===
[2024-06-14 12:13:39,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:39,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1309470610, now seen corresponding path program 1 times
[2024-06-14 12:13:39,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:39,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008655455]
[2024-06-14 12:13:39,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:39,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:40,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:40,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008655455]
[2024-06-14 12:13:40,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008655455] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:40,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:40,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 12:13:40,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248908291]
[2024-06-14 12:13:40,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:40,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 12:13:40,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:40,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 12:13:40,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-06-14 12:13:40,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53
[2024-06-14 12:13:40,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 104 transitions, 800 flow. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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)
[2024-06-14 12:13:40,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:40,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53
[2024-06-14 12:13:40,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:42,725 INFO L124 PetriNetUnfolderBase]: 14175/19660 cut-off events.
[2024-06-14 12:13:42,725 INFO L125 PetriNetUnfolderBase]: For 139338/139338 co-relation queries the response was YES.
[2024-06-14 12:13:42,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84036 conditions, 19660 events. 14175/19660 cut-off events. For 139338/139338 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 109248 event pairs, 5829 based on Foata normal form. 6/19657 useless extension candidates. Maximal degree in co-relation 84001. Up to 18806 conditions per place.
[2024-06-14 12:13:42,869 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 112 selfloop transitions, 37 changer transitions 0/156 dead transitions.
[2024-06-14 12:13:42,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 156 transitions, 1272 flow
[2024-06-14 12:13:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:13:42,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:13:42,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 208 transitions.
[2024-06-14 12:13:42,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49056603773584906
[2024-06-14 12:13:42,871 INFO L175 Difference]: Start difference. First operand has 88 places, 104 transitions, 800 flow. Second operand 8 states and 208 transitions.
[2024-06-14 12:13:42,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 156 transitions, 1272 flow
[2024-06-14 12:13:42,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 156 transitions, 1227 flow, removed 15 selfloop flow, removed 3 redundant places.
[2024-06-14 12:13:42,949 INFO L231 Difference]: Finished difference. Result has 93 places, 108 transitions, 893 flow
[2024-06-14 12:13:42,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=893, PETRI_PLACES=93, PETRI_TRANSITIONS=108}
[2024-06-14 12:13:42,950 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 37 predicate places.
[2024-06-14 12:13:42,950 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 108 transitions, 893 flow
[2024-06-14 12:13:42,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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)
[2024-06-14 12:13:42,951 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:42,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:42,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-06-14 12:13:42,951 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-14 12:13:42,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:42,951 INFO L85 PathProgramCache]: Analyzing trace with hash 51623856, now seen corresponding path program 1 times
[2024-06-14 12:13:42,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:42,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475232484]
[2024-06-14 12:13:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:42,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:43,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:43,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475232484]
[2024-06-14 12:13:43,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475232484] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:43,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:43,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:13:43,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478980929]
[2024-06-14 12:13:43,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:43,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:13:43,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:43,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:13:43,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:13:44,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53
[2024-06-14 12:13:44,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 108 transitions, 893 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:13:44,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:44,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53
[2024-06-14 12:13:44,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:46,181 INFO L124 PetriNetUnfolderBase]: 14452/19951 cut-off events.
[2024-06-14 12:13:46,182 INFO L125 PetriNetUnfolderBase]: For 165973/165973 co-relation queries the response was YES.
[2024-06-14 12:13:46,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90070 conditions, 19951 events. 14452/19951 cut-off events. For 165973/165973 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 107904 event pairs, 6936 based on Foata normal form. 3/19951 useless extension candidates. Maximal degree in co-relation 90034. Up to 19442 conditions per place.
[2024-06-14 12:13:46,335 INFO L140 encePairwiseOnDemand]: 41/53 looper letters, 114 selfloop transitions, 25 changer transitions 0/144 dead transitions.
[2024-06-14 12:13:46,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 144 transitions, 1299 flow
[2024-06-14 12:13:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:13:46,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:13:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 166 transitions.
[2024-06-14 12:13:46,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4474393530997305
[2024-06-14 12:13:46,337 INFO L175 Difference]: Start difference. First operand has 93 places, 108 transitions, 893 flow. Second operand 7 states and 166 transitions.
[2024-06-14 12:13:46,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 144 transitions, 1299 flow
[2024-06-14 12:13:46,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 144 transitions, 1179 flow, removed 23 selfloop flow, removed 6 redundant places.
[2024-06-14 12:13:46,438 INFO L231 Difference]: Finished difference. Result has 94 places, 112 transitions, 891 flow
[2024-06-14 12:13:46,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=891, PETRI_PLACES=94, PETRI_TRANSITIONS=112}
[2024-06-14 12:13:46,439 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 38 predicate places.
[2024-06-14 12:13:46,439 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 112 transitions, 891 flow
[2024-06-14 12:13:46,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:13:46,440 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:46,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:46,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-06-14 12:13:46,440 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-14 12:13:46,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:46,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1221240062, now seen corresponding path program 1 times
[2024-06-14 12:13:46,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:46,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541747716]
[2024-06-14 12:13:46,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:46,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:47,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:47,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:47,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541747716]
[2024-06-14 12:13:47,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541747716] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:47,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:47,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 12:13:47,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209180878]
[2024-06-14 12:13:47,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:47,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 12:13:47,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:47,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 12:13:47,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-06-14 12:13:47,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 53
[2024-06-14 12:13:47,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 112 transitions, 891 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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)
[2024-06-14 12:13:47,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:47,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 53
[2024-06-14 12:13:47,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:49,682 INFO L124 PetriNetUnfolderBase]: 16510/22257 cut-off events.
[2024-06-14 12:13:49,683 INFO L125 PetriNetUnfolderBase]: For 210043/210043 co-relation queries the response was YES.
[2024-06-14 12:13:49,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102421 conditions, 22257 events. 16510/22257 cut-off events. For 210043/210043 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 115043 event pairs, 8012 based on Foata normal form. 6/22260 useless extension candidates. Maximal degree in co-relation 102384. Up to 22183 conditions per place.
[2024-06-14 12:13:49,901 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 122 selfloop transitions, 22 changer transitions 0/148 dead transitions.
[2024-06-14 12:13:49,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 148 transitions, 1411 flow
[2024-06-14 12:13:49,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:13:49,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:13:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions.
[2024-06-14 12:13:49,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4339622641509434
[2024-06-14 12:13:49,903 INFO L175 Difference]: Start difference. First operand has 94 places, 112 transitions, 891 flow. Second operand 6 states and 138 transitions.
[2024-06-14 12:13:49,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 148 transitions, 1411 flow
[2024-06-14 12:13:50,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 148 transitions, 1340 flow, removed 3 selfloop flow, removed 6 redundant places.
[2024-06-14 12:13:50,036 INFO L231 Difference]: Finished difference. Result has 96 places, 126 transitions, 1034 flow
[2024-06-14 12:13:50,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1034, PETRI_PLACES=96, PETRI_TRANSITIONS=126}
[2024-06-14 12:13:50,037 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 40 predicate places.
[2024-06-14 12:13:50,038 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 126 transitions, 1034 flow
[2024-06-14 12:13:50,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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)
[2024-06-14 12:13:50,038 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:50,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:50,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-06-14 12:13:50,038 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)] ===
[2024-06-14 12:13:50,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:50,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1749588816, now seen corresponding path program 1 times
[2024-06-14 12:13:50,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:50,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217435642]
[2024-06-14 12:13:50,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:50,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:51,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:51,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:51,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217435642]
[2024-06-14 12:13:51,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217435642] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:51,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:51,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:13:51,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753512174]
[2024-06-14 12:13:51,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:51,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:13:51,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:51,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:13:51,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:13:51,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53
[2024-06-14 12:13:51,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 126 transitions, 1034 flow. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:13:51,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:51,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53
[2024-06-14 12:13:51,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:53,993 INFO L124 PetriNetUnfolderBase]: 15120/20963 cut-off events.
[2024-06-14 12:13:53,994 INFO L125 PetriNetUnfolderBase]: For 237289/237443 co-relation queries the response was YES.
[2024-06-14 12:13:54,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102546 conditions, 20963 events. 15120/20963 cut-off events. For 237289/237443 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 117811 event pairs, 4556 based on Foata normal form. 28/20865 useless extension candidates. Maximal degree in co-relation 102506. Up to 19153 conditions per place.
[2024-06-14 12:13:54,180 INFO L140 encePairwiseOnDemand]: 41/53 looper letters, 124 selfloop transitions, 57 changer transitions 0/191 dead transitions.
[2024-06-14 12:13:54,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 191 transitions, 1810 flow
[2024-06-14 12:13:54,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:13:54,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:13:54,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 218 transitions.
[2024-06-14 12:13:54,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5141509433962265
[2024-06-14 12:13:54,182 INFO L175 Difference]: Start difference. First operand has 96 places, 126 transitions, 1034 flow. Second operand 8 states and 218 transitions.
[2024-06-14 12:13:54,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 191 transitions, 1810 flow
[2024-06-14 12:13:54,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 191 transitions, 1766 flow, removed 21 selfloop flow, removed 1 redundant places.
[2024-06-14 12:13:54,331 INFO L231 Difference]: Finished difference. Result has 103 places, 130 transitions, 1193 flow
[2024-06-14 12:13:54,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1193, PETRI_PLACES=103, PETRI_TRANSITIONS=130}
[2024-06-14 12:13:54,331 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 47 predicate places.
[2024-06-14 12:13:54,331 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 130 transitions, 1193 flow
[2024-06-14 12:13:54,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:13:54,332 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:54,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:54,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-06-14 12:13:54,332 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)] ===
[2024-06-14 12:13:54,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:54,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1749528366, now seen corresponding path program 2 times
[2024-06-14 12:13:54,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:54,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231028234]
[2024-06-14 12:13:54,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:54,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:55,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:55,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231028234]
[2024-06-14 12:13:55,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231028234] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:55,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:55,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:13:55,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583131264]
[2024-06-14 12:13:55,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:55,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:13:55,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:55,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:13:55,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:13:55,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53
[2024-06-14 12:13:55,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 130 transitions, 1193 flow. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:13:55,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:55,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53
[2024-06-14 12:13:55,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:13:58,653 INFO L124 PetriNetUnfolderBase]: 15438/21353 cut-off events.
[2024-06-14 12:13:58,653 INFO L125 PetriNetUnfolderBase]: For 274618/274764 co-relation queries the response was YES.
[2024-06-14 12:13:58,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107380 conditions, 21353 events. 15438/21353 cut-off events. For 274618/274764 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 119852 event pairs, 5863 based on Foata normal form. 60/21261 useless extension candidates. Maximal degree in co-relation 107337. Up to 20048 conditions per place.
[2024-06-14 12:13:58,827 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 139 selfloop transitions, 45 changer transitions 0/194 dead transitions.
[2024-06-14 12:13:58,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 194 transitions, 1789 flow
[2024-06-14 12:13:58,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:13:58,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:13:58,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 236 transitions.
[2024-06-14 12:13:58,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4947589098532495
[2024-06-14 12:13:58,830 INFO L175 Difference]: Start difference. First operand has 103 places, 130 transitions, 1193 flow. Second operand 9 states and 236 transitions.
[2024-06-14 12:13:58,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 194 transitions, 1789 flow
[2024-06-14 12:13:59,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 194 transitions, 1695 flow, removed 18 selfloop flow, removed 4 redundant places.
[2024-06-14 12:13:59,066 INFO L231 Difference]: Finished difference. Result has 108 places, 133 transitions, 1257 flow
[2024-06-14 12:13:59,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1099, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1257, PETRI_PLACES=108, PETRI_TRANSITIONS=133}
[2024-06-14 12:13:59,067 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 52 predicate places.
[2024-06-14 12:13:59,067 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 133 transitions, 1257 flow
[2024-06-14 12:13:59,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:13:59,067 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:13:59,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:13:59,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-06-14 12:13:59,068 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-06-14 12:13:59,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:13:59,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1611167141, now seen corresponding path program 1 times
[2024-06-14 12:13:59,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:13:59,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951534399]
[2024-06-14 12:13:59,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:13:59,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:13:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:13:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:13:59,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:13:59,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951534399]
[2024-06-14 12:13:59,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951534399] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:13:59,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:13:59,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 12:13:59,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617981875]
[2024-06-14 12:13:59,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:13:59,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 12:13:59,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:13:59,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 12:13:59,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-06-14 12:13:59,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53
[2024-06-14 12:13:59,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 133 transitions, 1257 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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)
[2024-06-14 12:13:59,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:13:59,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53
[2024-06-14 12:13:59,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:14:03,236 INFO L124 PetriNetUnfolderBase]: 15817/21759 cut-off events.
[2024-06-14 12:14:03,237 INFO L125 PetriNetUnfolderBase]: For 301817/301981 co-relation queries the response was YES.
[2024-06-14 12:14:03,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112793 conditions, 21759 events. 15817/21759 cut-off events. For 301817/301981 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 118882 event pairs, 7030 based on Foata normal form. 6/21607 useless extension candidates. Maximal degree in co-relation 112748. Up to 21272 conditions per place.
[2024-06-14 12:14:03,455 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 138 selfloop transitions, 21 changer transitions 0/167 dead transitions.
[2024-06-14 12:14:03,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 167 transitions, 1813 flow
[2024-06-14 12:14:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:14:03,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:14:03,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions.
[2024-06-14 12:14:03,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4559748427672956
[2024-06-14 12:14:03,472 INFO L175 Difference]: Start difference. First operand has 108 places, 133 transitions, 1257 flow. Second operand 6 states and 145 transitions.
[2024-06-14 12:14:03,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 167 transitions, 1813 flow
[2024-06-14 12:14:03,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 167 transitions, 1709 flow, removed 11 selfloop flow, removed 7 redundant places.
[2024-06-14 12:14:03,710 INFO L231 Difference]: Finished difference. Result has 107 places, 141 transitions, 1320 flow
[2024-06-14 12:14:03,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1153, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1320, PETRI_PLACES=107, PETRI_TRANSITIONS=141}
[2024-06-14 12:14:03,717 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 51 predicate places.
[2024-06-14 12:14:03,717 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 141 transitions, 1320 flow
[2024-06-14 12:14:03,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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)
[2024-06-14 12:14:03,718 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:14:03,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:14:03,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-06-14 12:14:03,718 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)] ===
[2024-06-14 12:14:03,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:14:03,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1316311338, now seen corresponding path program 1 times
[2024-06-14 12:14:03,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:14:03,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045009481]
[2024-06-14 12:14:03,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:14:03,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:14:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:14:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:14:05,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:14:05,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045009481]
[2024-06-14 12:14:05,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045009481] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:14:05,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:14:05,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:14:05,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281435213]
[2024-06-14 12:14:05,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:14:05,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:14:05,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:14:05,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:14:05,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:14:05,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53
[2024-06-14 12:14:05,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 141 transitions, 1320 flow. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 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)
[2024-06-14 12:14:05,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:14:05,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53
[2024-06-14 12:14:05,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:14:08,325 INFO L124 PetriNetUnfolderBase]: 15853/21810 cut-off events.
[2024-06-14 12:14:08,325 INFO L125 PetriNetUnfolderBase]: For 339081/339239 co-relation queries the response was YES.
[2024-06-14 12:14:08,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116875 conditions, 21810 events. 15853/21810 cut-off events. For 339081/339239 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 119097 event pairs, 7034 based on Foata normal form. 6/21659 useless extension candidates. Maximal degree in co-relation 116829. Up to 21284 conditions per place.
[2024-06-14 12:14:08,546 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 155 selfloop transitions, 21 changer transitions 0/184 dead transitions.
[2024-06-14 12:14:08,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 184 transitions, 1834 flow
[2024-06-14 12:14:08,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:14:08,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:14:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 187 transitions.
[2024-06-14 12:14:08,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4410377358490566
[2024-06-14 12:14:08,549 INFO L175 Difference]: Start difference. First operand has 107 places, 141 transitions, 1320 flow. Second operand 8 states and 187 transitions.
[2024-06-14 12:14:08,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 184 transitions, 1834 flow
[2024-06-14 12:14:08,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 184 transitions, 1774 flow, removed 25 selfloop flow, removed 2 redundant places.
[2024-06-14 12:14:08,887 INFO L231 Difference]: Finished difference. Result has 113 places, 144 transitions, 1376 flow
[2024-06-14 12:14:08,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1260, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1376, PETRI_PLACES=113, PETRI_TRANSITIONS=144}
[2024-06-14 12:14:08,888 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 57 predicate places.
[2024-06-14 12:14:08,888 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 144 transitions, 1376 flow
[2024-06-14 12:14:08,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 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)
[2024-06-14 12:14:08,889 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:14:08,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:14:08,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-06-14 12:14:08,890 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)] ===
[2024-06-14 12:14:08,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:14:08,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1324882218, now seen corresponding path program 2 times
[2024-06-14 12:14:08,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:14:08,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695094192]
[2024-06-14 12:14:08,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:14:08,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:14:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:14:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:14:10,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:14:10,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695094192]
[2024-06-14 12:14:10,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695094192] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:14:10,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:14:10,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:14:10,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157707298]
[2024-06-14 12:14:10,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:14:10,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:14:10,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:14:10,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:14:10,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:14:10,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53
[2024-06-14 12:14:10,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 144 transitions, 1376 flow. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 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)
[2024-06-14 12:14:10,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:14:10,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53
[2024-06-14 12:14:10,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:14:13,604 INFO L124 PetriNetUnfolderBase]: 15889/21862 cut-off events.
[2024-06-14 12:14:13,604 INFO L125 PetriNetUnfolderBase]: For 378325/378483 co-relation queries the response was YES.
[2024-06-14 12:14:13,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120835 conditions, 21862 events. 15889/21862 cut-off events. For 378325/378483 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 119406 event pairs, 6874 based on Foata normal form. 6/21711 useless extension candidates. Maximal degree in co-relation 120787. Up to 21313 conditions per place.
[2024-06-14 12:14:13,766 INFO L140 encePairwiseOnDemand]: 41/53 looper letters, 156 selfloop transitions, 23 changer transitions 0/187 dead transitions.
[2024-06-14 12:14:13,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 187 transitions, 1900 flow
[2024-06-14 12:14:13,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:14:13,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:14:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 187 transitions.
[2024-06-14 12:14:13,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4410377358490566
[2024-06-14 12:14:13,767 INFO L175 Difference]: Start difference. First operand has 113 places, 144 transitions, 1376 flow. Second operand 8 states and 187 transitions.
[2024-06-14 12:14:13,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 187 transitions, 1900 flow
[2024-06-14 12:14:14,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 187 transitions, 1812 flow, removed 26 selfloop flow, removed 5 redundant places.
[2024-06-14 12:14:14,078 INFO L231 Difference]: Finished difference. Result has 116 places, 147 transitions, 1414 flow
[2024-06-14 12:14:14,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1414, PETRI_PLACES=116, PETRI_TRANSITIONS=147}
[2024-06-14 12:14:14,078 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 60 predicate places.
[2024-06-14 12:14:14,079 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 147 transitions, 1414 flow
[2024-06-14 12:14:14,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 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)
[2024-06-14 12:14:14,079 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:14:14,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:14:14,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-06-14 12:14:14,080 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)] ===
[2024-06-14 12:14:14,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:14:14,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1244937232, now seen corresponding path program 1 times
[2024-06-14 12:14:14,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:14:14,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389420613]
[2024-06-14 12:14:14,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:14:14,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:14:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:14:15,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:14:15,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:14:15,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389420613]
[2024-06-14 12:14:15,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389420613] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:14:15,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:14:15,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:14:15,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341992391]
[2024-06-14 12:14:15,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:14:15,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:14:15,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:14:15,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:14:15,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:14:15,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53
[2024-06-14 12:14:15,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 147 transitions, 1414 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 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)
[2024-06-14 12:14:15,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:14:15,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53
[2024-06-14 12:14:15,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:14:18,551 INFO L124 PetriNetUnfolderBase]: 15844/21791 cut-off events.
[2024-06-14 12:14:18,551 INFO L125 PetriNetUnfolderBase]: For 417683/417852 co-relation queries the response was YES.
[2024-06-14 12:14:18,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123800 conditions, 21791 events. 15844/21791 cut-off events. For 417683/417852 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 118830 event pairs, 6485 based on Foata normal form. 7/21637 useless extension candidates. Maximal degree in co-relation 123751. Up to 20968 conditions per place.
[2024-06-14 12:14:18,721 INFO L140 encePairwiseOnDemand]: 41/53 looper letters, 129 selfloop transitions, 44 changer transitions 0/181 dead transitions.
[2024-06-14 12:14:18,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 181 transitions, 1854 flow
[2024-06-14 12:14:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:14:18,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:14:18,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions.
[2024-06-14 12:14:18,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4968553459119497
[2024-06-14 12:14:18,726 INFO L175 Difference]: Start difference. First operand has 116 places, 147 transitions, 1414 flow. Second operand 6 states and 158 transitions.
[2024-06-14 12:14:18,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 181 transitions, 1854 flow
[2024-06-14 12:14:19,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 181 transitions, 1740 flow, removed 36 selfloop flow, removed 6 redundant places.
[2024-06-14 12:14:19,065 INFO L231 Difference]: Finished difference. Result has 116 places, 147 transitions, 1408 flow
[2024-06-14 12:14:19,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1300, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1408, PETRI_PLACES=116, PETRI_TRANSITIONS=147}
[2024-06-14 12:14:19,066 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 60 predicate places.
[2024-06-14 12:14:19,066 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 147 transitions, 1408 flow
[2024-06-14 12:14:19,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 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)
[2024-06-14 12:14:19,068 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:14:19,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:14:19,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-06-14 12:14:19,068 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)] ===
[2024-06-14 12:14:19,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:14:19,070 INFO L85 PathProgramCache]: Analyzing trace with hash 745628522, now seen corresponding path program 3 times
[2024-06-14 12:14:19,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:14:19,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285478697]
[2024-06-14 12:14:19,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:14:19,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:14:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:14:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:14:20,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:14:20,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285478697]
[2024-06-14 12:14:20,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285478697] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:14:20,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:14:20,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:14:20,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791054535]
[2024-06-14 12:14:20,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:14:20,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:14:20,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:14:20,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:14:20,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:14:21,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53
[2024-06-14 12:14:21,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 147 transitions, 1408 flow. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 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)
[2024-06-14 12:14:21,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:14:21,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53
[2024-06-14 12:14:21,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand