./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe026_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.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/safe026_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.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/safe026_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i ./goblint.2024-05-21_14-57-05.files/protection/safe026_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --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 13:27:22,952 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-06-14 13:27:23,015 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-06-14 13:27:23,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-06-14 13:27:23,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-06-14 13:27:23,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-06-14 13:27:23,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-06-14 13:27:23,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-06-14 13:27:23,048 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-06-14 13:27:23,048 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-06-14 13:27:23,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-06-14 13:27:23,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-06-14 13:27:23,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-06-14 13:27:23,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-06-14 13:27:23,050 INFO L153 SettingsManager]: * Use SBE=true
[2024-06-14 13:27:23,050 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-06-14 13:27:23,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-06-14 13:27:23,051 INFO L153 SettingsManager]: * sizeof long=4
[2024-06-14 13:27:23,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-06-14 13:27:23,051 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-06-14 13:27:23,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-06-14 13:27:23,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-06-14 13:27:23,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-06-14 13:27:23,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-06-14 13:27:23,053 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-06-14 13:27:23,053 INFO L153 SettingsManager]: * sizeof long double=12
[2024-06-14 13:27:23,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-06-14 13:27:23,054 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-06-14 13:27:23,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-06-14 13:27:23,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-06-14 13:27:23,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-06-14 13:27:23,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-06-14 13:27:23,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-06-14 13:27:23,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-06-14 13:27:23,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-06-14 13:27:23,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-06-14 13:27:23,056 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-06-14 13:27:23,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-06-14 13:27:23,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-06-14 13:27:23,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-06-14 13:27:23,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2024-06-14 13:27:23,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-06-14 13:27:23,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-06-14 13:27:23,058 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false
[2024-06-14 13:27:23,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-06-14 13:27:23,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-06-14 13:27:23,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-06-14 13:27:23,251 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-06-14 13:27:23,252 INFO L274 PluginConnector]: Witness Parser initialized
[2024-06-14 13:27:23,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/safe026_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.yml/witness.yml
[2024-06-14 13:27:23,400 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-06-14 13:27:23,400 INFO L274 PluginConnector]: CDTParser initialized
[2024-06-14 13:27:23,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i
[2024-06-14 13:27:24,463 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-06-14 13:27:24,813 INFO L384 CDTParser]: Found 1 translation units.
[2024-06-14 13:27:24,813 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i
[2024-06-14 13:27:24,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d190bb22/ee3e7120685e46a5a5f1f61787795c53/FLAGb9e9514ee
[2024-06-14 13:27:24,849 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d190bb22/ee3e7120685e46a5a5f1f61787795c53
[2024-06-14 13:27:24,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-06-14 13:27:24,852 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-06-14 13:27:24,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-06-14 13:27:24,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-06-14 13:27:24,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-06-14 13:27:24,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 01:27:23" (1/2) ...
[2024-06-14 13:27:24,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b4bee3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 01:27:24, skipping insertion in model container
[2024-06-14 13:27:24,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 01:27:23" (1/2) ...
[2024-06-14 13:27:24,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b8506ba and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 01:27:24, skipping insertion in model container
[2024-06-14 13:27:24,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 01:27:24" (2/2) ...
[2024-06-14 13:27:24,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b4bee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:24, skipping insertion in model container
[2024-06-14 13:27:24,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 01:27:24" (2/2) ...
[2024-06-14 13:27:24,874 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness
[2024-06-14 13:27:25,008 INFO L95 edCorrectnessWitness]: Found the following entries in the witness:
[2024-06-14 13:27:25,009 INFO L97 edCorrectnessWitness]: Location invariant before [L833-L833] ((((((((((((((((! multithreaded || y$r_buff0_thd2 == (_Bool)0) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || y$read_delayed == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff0 && y$w_buff0 <= 1) && (y$w_buff0 == 0 || y$w_buff0 == 1)))) && (! multithreaded || y$flush_delayed == (_Bool)0)) && (! multithreaded || y$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff1 && y$w_buff1 <= 1) && (y$w_buff1 == 0 || y$w_buff1 == 1)))) && (! multithreaded || y$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= y$mem_tmp && y$mem_tmp <= 1) && (y$mem_tmp == 0 || y$mem_tmp == 1)))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || (((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 2) && __unbuffered_p2_EAX <= 127) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)))) && (! multithreaded || y$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || y$read_delayed_var == 0)) && (! multithreaded || y$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))
[2024-06-14 13:27:25,009 INFO L97 edCorrectnessWitness]: Location invariant before [L831-L831] ((((((((((((((((! multithreaded || y$r_buff0_thd2 == (_Bool)0) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || y$read_delayed == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff0 && y$w_buff0 <= 1) && (y$w_buff0 == 0 || y$w_buff0 == 1)))) && (! multithreaded || y$flush_delayed == (_Bool)0)) && (! multithreaded || y$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff1 && y$w_buff1 <= 1) && (y$w_buff1 == 0 || y$w_buff1 == 1)))) && (! multithreaded || y$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= y$mem_tmp && y$mem_tmp <= 1) && (y$mem_tmp == 0 || y$mem_tmp == 1)))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || (((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 2) && __unbuffered_p2_EAX <= 127) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)))) && (! multithreaded || y$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || y$read_delayed_var == 0)) && (! multithreaded || y$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))
[2024-06-14 13:27:25,009 INFO L97 edCorrectnessWitness]: Location invariant before [L834-L834] ((((((((((((((((! multithreaded || y$r_buff0_thd2 == (_Bool)0) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || y$read_delayed == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff0 && y$w_buff0 <= 1) && (y$w_buff0 == 0 || y$w_buff0 == 1)))) && (! multithreaded || y$flush_delayed == (_Bool)0)) && (! multithreaded || y$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff1 && y$w_buff1 <= 1) && (y$w_buff1 == 0 || y$w_buff1 == 1)))) && (! multithreaded || y$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= y$mem_tmp && y$mem_tmp <= 1) && (y$mem_tmp == 0 || y$mem_tmp == 1)))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || (((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 2) && __unbuffered_p2_EAX <= 127) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)))) && (! multithreaded || y$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || y$read_delayed_var == 0)) && (! multithreaded || y$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))
[2024-06-14 13:27:25,009 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0
[2024-06-14 13:27:25,009 INFO L106 edCorrectnessWitness]: ghost_update [L829-L829] multithreaded = 1;
[2024-06-14 13:27:25,047 INFO L177 MainTranslator]: Built tables and reachable declarations
[2024-06-14 13:27:25,347 INFO L207 PostProcessor]: Analyzing one entry point: main
[2024-06-14 13:27:25,354 INFO L202 MainTranslator]: Completed pre-run
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
[2024-06-14 13:27:25,493 INFO L207 PostProcessor]: Analyzing one entry point: main
[2024-06-14 13:27:25,523 INFO L206 MainTranslator]: Completed translation
[2024-06-14 13:27:25,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25 WrapperNode
[2024-06-14 13:27:25,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-06-14 13:27:25,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-06-14 13:27:25,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-06-14 13:27:25,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-06-14 13:27:25,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,577 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 124
[2024-06-14 13:27:25,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-06-14 13:27:25,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-06-14 13:27:25,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-06-14 13:27:25,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-06-14 13:27:25,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,608 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 13:27:25,609 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-06-14 13:27:25,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-06-14 13:27:25,644 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-06-14 13:27:25,644 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-06-14 13:27:25,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (1/1) ...
[2024-06-14 13:27:25,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-06-14 13:27:25,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-06-14 13:27:25,686 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 13:27:25,720 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 13:27:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-06-14 13:27:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-06-14 13:27:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2024-06-14 13:27:25,751 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2024-06-14 13:27:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2024-06-14 13:27:25,751 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2024-06-14 13:27:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2024-06-14 13:27:25,751 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2024-06-14 13:27:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-06-14 13:27:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-06-14 13:27:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-06-14 13:27:25,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-06-14 13:27:25,753 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 13:27:25,852 INFO L244 CfgBuilder]: Building ICFG
[2024-06-14 13:27:25,853 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-06-14 13:27:26,197 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program.
[2024-06-14 13:27:26,197 INFO L293 CfgBuilder]: Performing block encoding
[2024-06-14 13:27:26,317 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-06-14 13:27:26,318 INFO L320 CfgBuilder]: Removed 0 assume(true) statements.
[2024-06-14 13:27:26,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 01:27:26 BoogieIcfgContainer
[2024-06-14 13:27:26,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-06-14 13:27:26,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-06-14 13:27:26,320 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-06-14 13:27:26,322 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-06-14 13:27:26,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 01:27:23" (1/4) ...
[2024-06-14 13:27:26,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d294bfd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 01:27:26, skipping insertion in model container
[2024-06-14 13:27:26,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 01:27:24" (2/4) ...
[2024-06-14 13:27:26,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d294bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 01:27:26, skipping insertion in model container
[2024-06-14 13:27:26,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:27:25" (3/4) ...
[2024-06-14 13:27:26,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d294bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 01:27:26, skipping insertion in model container
[2024-06-14 13:27:26,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 01:27:26" (4/4) ...
[2024-06-14 13:27:26,325 INFO L112 eAbstractionObserver]: Analyzing ICFG safe026_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i
[2024-06-14 13:27:26,338 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-06-14 13:27:26,338 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2024-06-14 13:27:26,338 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-06-14 13:27:26,371 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-06-14 13:27:26,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 40 transitions, 92 flow
[2024-06-14 13:27:26,416 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events.
[2024-06-14 13:27:26,416 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-06-14 13:27:26,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 0/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.
[2024-06-14 13:27:26,418 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 40 transitions, 92 flow
[2024-06-14 13:27:26,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 31 transitions, 71 flow
[2024-06-14 13:27:26,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-06-14 13:27:26,436 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;@5c286b72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-06-14 13:27:26,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2024-06-14 13:27:26,442 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-06-14 13:27:26,442 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events.
[2024-06-14 13:27:26,442 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-06-14 13:27:26,442 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:26,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:26,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:26,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:26,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1490631750, now seen corresponding path program 1 times
[2024-06-14 13:27:26,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:26,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451215750]
[2024-06-14 13:27:26,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:26,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:27,289 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 13:27:27,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:27,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451215750]
[2024-06-14 13:27:27,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451215750] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:27,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:27,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-06-14 13:27:27,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646641827]
[2024-06-14 13:27:27,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:27,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-06-14 13:27:27,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:27,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-06-14 13:27:27,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-06-14 13:27:27,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40
[2024-06-14 13:27:27,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 13:27:27,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:27,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40
[2024-06-14 13:27:27,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:27,682 INFO L124 PetriNetUnfolderBase]: 1150/1746 cut-off events.
[2024-06-14 13:27:27,683 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES.
[2024-06-14 13:27:27,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3567 conditions, 1746 events. 1150/1746 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7851 event pairs, 805 based on Foata normal form. 3/1712 useless extension candidates. Maximal degree in co-relation 3552. Up to 1726 conditions per place.
[2024-06-14 13:27:27,697 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 35 selfloop transitions, 4 changer transitions 0/43 dead transitions.
[2024-06-14 13:27:27,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 179 flow
[2024-06-14 13:27:27,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-06-14 13:27:27,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-06-14 13:27:27,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions.
[2024-06-14 13:27:27,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6
[2024-06-14 13:27:27,708 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 71 flow. Second operand 3 states and 72 transitions.
[2024-06-14 13:27:27,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 179 flow
[2024-06-14 13:27:27,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 174 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-06-14 13:27:27,712 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 98 flow
[2024-06-14 13:27:27,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=41, PETRI_TRANSITIONS=34}
[2024-06-14 13:27:27,716 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places.
[2024-06-14 13:27:27,717 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 98 flow
[2024-06-14 13:27:27,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 13:27:27,717 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:27,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:27,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-06-14 13:27:27,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:27,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:27,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2021986201, now seen corresponding path program 1 times
[2024-06-14 13:27:27,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:27,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349293034]
[2024-06-14 13:27:27,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:27,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:28,244 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 13:27:28,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:28,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349293034]
[2024-06-14 13:27:28,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349293034] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:28,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:28,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-06-14 13:27:28,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994736816]
[2024-06-14 13:27:28,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:28,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-06-14 13:27:28,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-06-14 13:27:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-06-14 13:27:28,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40
[2024-06-14 13:27:28,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 13:27:28,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:28,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40
[2024-06-14 13:27:28,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:28,523 INFO L124 PetriNetUnfolderBase]: 1154/1751 cut-off events.
[2024-06-14 13:27:28,524 INFO L125 PetriNetUnfolderBase]: For 266/266 co-relation queries the response was YES.
[2024-06-14 13:27:28,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4075 conditions, 1751 events. 1154/1751 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7935 event pairs, 630 based on Foata normal form. 5/1754 useless extension candidates. Maximal degree in co-relation 4060. Up to 1716 conditions per place.
[2024-06-14 13:27:28,531 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 45 selfloop transitions, 7 changer transitions 0/56 dead transitions.
[2024-06-14 13:27:28,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 56 transitions, 264 flow
[2024-06-14 13:27:28,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-06-14 13:27:28,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-06-14 13:27:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions.
[2024-06-14 13:27:28,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.575
[2024-06-14 13:27:28,533 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 98 flow. Second operand 4 states and 92 transitions.
[2024-06-14 13:27:28,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 56 transitions, 264 flow
[2024-06-14 13:27:28,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 56 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-06-14 13:27:28,535 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 154 flow
[2024-06-14 13:27:28,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=45, PETRI_TRANSITIONS=40}
[2024-06-14 13:27:28,536 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places.
[2024-06-14 13:27:28,536 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 154 flow
[2024-06-14 13:27:28,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 13:27:28,536 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:28,536 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:28,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-06-14 13:27:28,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:28,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:28,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1742936489, now seen corresponding path program 1 times
[2024-06-14 13:27:28,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:28,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161188038]
[2024-06-14 13:27:28,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:28,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:29,032 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 13:27:29,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:29,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161188038]
[2024-06-14 13:27:29,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161188038] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:29,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:29,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-06-14 13:27:29,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677072869]
[2024-06-14 13:27:29,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:29,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-06-14 13:27:29,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:29,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-06-14 13:27:29,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-06-14 13:27:29,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40
[2024-06-14 13:27:29,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 154 flow. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 13:27:29,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:29,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40
[2024-06-14 13:27:29,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:29,369 INFO L124 PetriNetUnfolderBase]: 1409/2119 cut-off events.
[2024-06-14 13:27:29,369 INFO L125 PetriNetUnfolderBase]: For 1023/1023 co-relation queries the response was YES.
[2024-06-14 13:27:29,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5547 conditions, 2119 events. 1409/2119 cut-off events. For 1023/1023 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9371 event pairs, 626 based on Foata normal form. 7/2125 useless extension candidates. Maximal degree in co-relation 5529. Up to 1980 conditions per place.
[2024-06-14 13:27:29,411 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 65 selfloop transitions, 14 changer transitions 0/82 dead transitions.
[2024-06-14 13:27:29,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 82 transitions, 451 flow
[2024-06-14 13:27:29,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 13:27:29,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 13:27:29,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions.
[2024-06-14 13:27:29,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.58
[2024-06-14 13:27:29,414 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 154 flow. Second operand 5 states and 116 transitions.
[2024-06-14 13:27:29,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 82 transitions, 451 flow
[2024-06-14 13:27:29,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 82 transitions, 436 flow, removed 3 selfloop flow, removed 1 redundant places.
[2024-06-14 13:27:29,417 INFO L231 Difference]: Finished difference. Result has 51 places, 53 transitions, 257 flow
[2024-06-14 13:27:29,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=257, PETRI_PLACES=51, PETRI_TRANSITIONS=53}
[2024-06-14 13:27:29,417 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places.
[2024-06-14 13:27:29,418 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 53 transitions, 257 flow
[2024-06-14 13:27:29,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 13:27:29,418 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:29,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:29,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-06-14 13:27:29,418 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:29,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:29,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1803544440, now seen corresponding path program 1 times
[2024-06-14 13:27:29,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:29,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085301423]
[2024-06-14 13:27:29,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:29,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:30,201 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 13:27:30,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:30,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085301423]
[2024-06-14 13:27:30,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085301423] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:30,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:30,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 13:27:30,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91743365]
[2024-06-14 13:27:30,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:30,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 13:27:30,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:30,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 13:27:30,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-06-14 13:27:30,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40
[2024-06-14 13:27:30,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 53 transitions, 257 flow. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 13:27:30,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:30,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40
[2024-06-14 13:27:30,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:30,594 INFO L124 PetriNetUnfolderBase]: 1431/2152 cut-off events.
[2024-06-14 13:27:30,594 INFO L125 PetriNetUnfolderBase]: For 2498/2500 co-relation queries the response was YES.
[2024-06-14 13:27:30,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6768 conditions, 2152 events. 1431/2152 cut-off events. For 2498/2500 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 9608 event pairs, 502 based on Foata normal form. 9/2160 useless extension candidates. Maximal degree in co-relation 6746. Up to 1969 conditions per place.
[2024-06-14 13:27:30,607 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 73 selfloop transitions, 18 changer transitions 0/94 dead transitions.
[2024-06-14 13:27:30,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 94 transitions, 583 flow
[2024-06-14 13:27:30,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:27:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:27:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions.
[2024-06-14 13:27:30,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5708333333333333
[2024-06-14 13:27:30,609 INFO L175 Difference]: Start difference. First operand has 51 places, 53 transitions, 257 flow. Second operand 6 states and 137 transitions.
[2024-06-14 13:27:30,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 94 transitions, 583 flow
[2024-06-14 13:27:30,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 94 transitions, 579 flow, removed 2 selfloop flow, removed 0 redundant places.
[2024-06-14 13:27:30,614 INFO L231 Difference]: Finished difference. Result has 57 places, 57 transitions, 326 flow
[2024-06-14 13:27:30,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=57, PETRI_TRANSITIONS=57}
[2024-06-14 13:27:30,615 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places.
[2024-06-14 13:27:30,615 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 57 transitions, 326 flow
[2024-06-14 13:27:30,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 13:27:30,615 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:30,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:30,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-06-14 13:27:30,616 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:30,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:30,616 INFO L85 PathProgramCache]: Analyzing trace with hash 75303574, now seen corresponding path program 1 times
[2024-06-14 13:27:30,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:30,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129568670]
[2024-06-14 13:27:30,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:30,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:31,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 13:27:31,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:31,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129568670]
[2024-06-14 13:27:31,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129568670] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:31,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:31,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 13:27:31,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468794952]
[2024-06-14 13:27:31,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:31,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 13:27:31,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:31,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 13:27:31,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-06-14 13:27:31,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40
[2024-06-14 13:27:31,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 57 transitions, 326 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 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 13:27:31,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:31,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40
[2024-06-14 13:27:31,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:31,845 INFO L124 PetriNetUnfolderBase]: 1534/2333 cut-off events.
[2024-06-14 13:27:31,845 INFO L125 PetriNetUnfolderBase]: For 4090/4092 co-relation queries the response was YES.
[2024-06-14 13:27:31,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8062 conditions, 2333 events. 1534/2333 cut-off events. For 4090/4092 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 10804 event pairs, 374 based on Foata normal form. 32/2364 useless extension candidates. Maximal degree in co-relation 8037. Up to 1932 conditions per place.
[2024-06-14 13:27:31,858 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 82 selfloop transitions, 20 changer transitions 0/105 dead transitions.
[2024-06-14 13:27:31,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 105 transitions, 702 flow
[2024-06-14 13:27:31,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:27:31,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:27:31,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions.
[2024-06-14 13:27:31,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607142857142857
[2024-06-14 13:27:31,859 INFO L175 Difference]: Start difference. First operand has 57 places, 57 transitions, 326 flow. Second operand 7 states and 157 transitions.
[2024-06-14 13:27:31,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 105 transitions, 702 flow
[2024-06-14 13:27:31,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 105 transitions, 661 flow, removed 5 selfloop flow, removed 4 redundant places.
[2024-06-14 13:27:31,864 INFO L231 Difference]: Finished difference. Result has 59 places, 58 transitions, 344 flow
[2024-06-14 13:27:31,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=344, PETRI_PLACES=59, PETRI_TRANSITIONS=58}
[2024-06-14 13:27:31,865 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 18 predicate places.
[2024-06-14 13:27:31,865 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 58 transitions, 344 flow
[2024-06-14 13:27:31,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 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 13:27:31,865 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:31,865 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:31,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-06-14 13:27:31,866 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:31,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:31,866 INFO L85 PathProgramCache]: Analyzing trace with hash -166536493, now seen corresponding path program 1 times
[2024-06-14 13:27:31,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:31,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014299319]
[2024-06-14 13:27:31,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:31,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:32,326 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 13:27:32,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:32,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014299319]
[2024-06-14 13:27:32,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014299319] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:32,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:32,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 13:27:32,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489237400]
[2024-06-14 13:27:32,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:32,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 13:27:32,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:32,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 13:27:32,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-06-14 13:27:32,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:32,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 13:27:32,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:32,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:32,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:32,818 INFO L124 PetriNetUnfolderBase]: 1524/2318 cut-off events.
[2024-06-14 13:27:32,818 INFO L125 PetriNetUnfolderBase]: For 5061/5061 co-relation queries the response was YES.
[2024-06-14 13:27:32,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8417 conditions, 2318 events. 1524/2318 cut-off events. For 5061/5061 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 10616 event pairs, 534 based on Foata normal form. 4/2321 useless extension candidates. Maximal degree in co-relation 8391. Up to 2287 conditions per place.
[2024-06-14 13:27:32,830 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 61 selfloop transitions, 10 changer transitions 0/74 dead transitions.
[2024-06-14 13:27:32,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 74 transitions, 547 flow
[2024-06-14 13:27:32,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 13:27:32,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 13:27:32,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 87 transitions.
[2024-06-14 13:27:32,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.435
[2024-06-14 13:27:32,832 INFO L175 Difference]: Start difference. First operand has 59 places, 58 transitions, 344 flow. Second operand 5 states and 87 transitions.
[2024-06-14 13:27:32,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 74 transitions, 547 flow
[2024-06-14 13:27:32,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 74 transitions, 504 flow, removed 3 selfloop flow, removed 5 redundant places.
[2024-06-14 13:27:32,838 INFO L231 Difference]: Finished difference. Result has 60 places, 63 transitions, 376 flow
[2024-06-14 13:27:32,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=376, PETRI_PLACES=60, PETRI_TRANSITIONS=63}
[2024-06-14 13:27:32,841 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 19 predicate places.
[2024-06-14 13:27:32,842 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 63 transitions, 376 flow
[2024-06-14 13:27:32,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 13:27:32,842 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:32,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:32,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-06-14 13:27:32,842 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:32,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:32,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1706339184, now seen corresponding path program 1 times
[2024-06-14 13:27:32,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:32,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648310204]
[2024-06-14 13:27:32,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:32,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:33,347 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 13:27:33,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:33,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648310204]
[2024-06-14 13:27:33,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648310204] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:33,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:33,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 13:27:33,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246487553]
[2024-06-14 13:27:33,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:33,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 13:27:33,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:33,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 13:27:33,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-06-14 13:27:33,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:33,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 63 transitions, 376 flow. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 13:27:33,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:33,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:33,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:33,738 INFO L124 PetriNetUnfolderBase]: 1536/2337 cut-off events.
[2024-06-14 13:27:33,738 INFO L125 PetriNetUnfolderBase]: For 6336/6338 co-relation queries the response was YES.
[2024-06-14 13:27:33,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8801 conditions, 2337 events. 1536/2337 cut-off events. For 6336/6338 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 10791 event pairs, 466 based on Foata normal form. 10/2346 useless extension candidates. Maximal degree in co-relation 8772. Up to 2185 conditions per place.
[2024-06-14 13:27:33,758 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 68 selfloop transitions, 18 changer transitions 0/89 dead transitions.
[2024-06-14 13:27:33,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 89 transitions, 652 flow
[2024-06-14 13:27:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:27:33,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:27:33,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions.
[2024-06-14 13:27:33,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667
[2024-06-14 13:27:33,760 INFO L175 Difference]: Start difference. First operand has 60 places, 63 transitions, 376 flow. Second operand 6 states and 112 transitions.
[2024-06-14 13:27:33,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 89 transitions, 652 flow
[2024-06-14 13:27:33,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 89 transitions, 632 flow, removed 5 selfloop flow, removed 2 redundant places.
[2024-06-14 13:27:33,767 INFO L231 Difference]: Finished difference. Result has 65 places, 67 transitions, 438 flow
[2024-06-14 13:27:33,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=65, PETRI_TRANSITIONS=67}
[2024-06-14 13:27:33,768 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 24 predicate places.
[2024-06-14 13:27:33,769 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 67 transitions, 438 flow
[2024-06-14 13:27:33,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 13:27:33,769 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:33,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:33,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-06-14 13:27:33,769 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:33,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:33,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1127744334, now seen corresponding path program 2 times
[2024-06-14 13:27:33,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:33,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317212255]
[2024-06-14 13:27:33,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:33,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:34,250 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 13:27:34,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:34,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317212255]
[2024-06-14 13:27:34,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317212255] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:34,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:34,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 13:27:34,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204979774]
[2024-06-14 13:27:34,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:34,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 13:27:34,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:34,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 13:27:34,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-06-14 13:27:34,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:34,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 67 transitions, 438 flow. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 13:27:34,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:34,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:34,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:34,631 INFO L124 PetriNetUnfolderBase]: 1494/2258 cut-off events.
[2024-06-14 13:27:34,631 INFO L125 PetriNetUnfolderBase]: For 7574/7574 co-relation queries the response was YES.
[2024-06-14 13:27:34,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8853 conditions, 2258 events. 1494/2258 cut-off events. For 7574/7574 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10143 event pairs, 504 based on Foata normal form. 4/2261 useless extension candidates. Maximal degree in co-relation 8821. Up to 2218 conditions per place.
[2024-06-14 13:27:34,647 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 70 selfloop transitions, 11 changer transitions 0/84 dead transitions.
[2024-06-14 13:27:34,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 84 transitions, 650 flow
[2024-06-14 13:27:34,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:27:34,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:27:34,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions.
[2024-06-14 13:27:34,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.425
[2024-06-14 13:27:34,650 INFO L175 Difference]: Start difference. First operand has 65 places, 67 transitions, 438 flow. Second operand 6 states and 102 transitions.
[2024-06-14 13:27:34,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 84 transitions, 650 flow
[2024-06-14 13:27:34,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 84 transitions, 627 flow, removed 1 selfloop flow, removed 3 redundant places.
[2024-06-14 13:27:34,659 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 455 flow
[2024-06-14 13:27:34,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=455, PETRI_PLACES=68, PETRI_TRANSITIONS=68}
[2024-06-14 13:27:34,660 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places.
[2024-06-14 13:27:34,660 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 455 flow
[2024-06-14 13:27:34,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 13:27:34,660 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:34,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:34,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-06-14 13:27:34,661 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:34,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:34,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1146504728, now seen corresponding path program 1 times
[2024-06-14 13:27:34,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:34,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589963318]
[2024-06-14 13:27:34,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:34,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:35,498 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 13:27:35,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:35,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589963318]
[2024-06-14 13:27:35,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589963318] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:35,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:35,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:27:35,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702498452]
[2024-06-14 13:27:35,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:35,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:27:35,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:35,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:27:35,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:27:35,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:35,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 455 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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 13:27:35,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:35,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:35,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:35,988 INFO L124 PetriNetUnfolderBase]: 1486/2246 cut-off events.
[2024-06-14 13:27:35,989 INFO L125 PetriNetUnfolderBase]: For 8834/8834 co-relation queries the response was YES.
[2024-06-14 13:27:35,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8944 conditions, 2246 events. 1486/2246 cut-off events. For 8834/8834 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10058 event pairs, 485 based on Foata normal form. 4/2249 useless extension candidates. Maximal degree in co-relation 8911. Up to 2197 conditions per place.
[2024-06-14 13:27:36,000 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 71 selfloop transitions, 12 changer transitions 0/86 dead transitions.
[2024-06-14 13:27:36,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 86 transitions, 679 flow
[2024-06-14 13:27:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:27:36,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:27:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions.
[2024-06-14 13:27:36,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.425
[2024-06-14 13:27:36,002 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 455 flow. Second operand 6 states and 102 transitions.
[2024-06-14 13:27:36,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 86 transitions, 679 flow
[2024-06-14 13:27:36,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 86 transitions, 655 flow, removed 2 selfloop flow, removed 4 redundant places.
[2024-06-14 13:27:36,011 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 484 flow
[2024-06-14 13:27:36,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=484, PETRI_PLACES=70, PETRI_TRANSITIONS=70}
[2024-06-14 13:27:36,012 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 29 predicate places.
[2024-06-14 13:27:36,013 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 484 flow
[2024-06-14 13:27:36,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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 13:27:36,013 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:36,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:36,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-06-14 13:27:36,013 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:36,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:36,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1179767766, now seen corresponding path program 1 times
[2024-06-14 13:27:36,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:36,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828032167]
[2024-06-14 13:27:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:36,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:36,911 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 13:27:36,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:36,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828032167]
[2024-06-14 13:27:36,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828032167] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:36,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:36,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:27:36,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247231037]
[2024-06-14 13:27:36,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:36,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:27:36,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:36,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:27:36,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:27:36,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:36,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 484 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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 13:27:36,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:36,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:36,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:37,408 INFO L124 PetriNetUnfolderBase]: 1481/2239 cut-off events.
[2024-06-14 13:27:37,408 INFO L125 PetriNetUnfolderBase]: For 10349/10349 co-relation queries the response was YES.
[2024-06-14 13:27:37,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9205 conditions, 2239 events. 1481/2239 cut-off events. For 10349/10349 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10038 event pairs, 498 based on Foata normal form. 2/2240 useless extension candidates. Maximal degree in co-relation 9172. Up to 2181 conditions per place.
[2024-06-14 13:27:37,422 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 70 selfloop transitions, 16 changer transitions 0/89 dead transitions.
[2024-06-14 13:27:37,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 89 transitions, 724 flow
[2024-06-14 13:27:37,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:27:37,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:27:37,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions.
[2024-06-14 13:27:37,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42916666666666664
[2024-06-14 13:27:37,424 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 484 flow. Second operand 6 states and 103 transitions.
[2024-06-14 13:27:37,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 89 transitions, 724 flow
[2024-06-14 13:27:37,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 89 transitions, 689 flow, removed 7 selfloop flow, removed 4 redundant places.
[2024-06-14 13:27:37,432 INFO L231 Difference]: Finished difference. Result has 72 places, 73 transitions, 525 flow
[2024-06-14 13:27:37,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=525, PETRI_PLACES=72, PETRI_TRANSITIONS=73}
[2024-06-14 13:27:37,433 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 31 predicate places.
[2024-06-14 13:27:37,433 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 73 transitions, 525 flow
[2024-06-14 13:27:37,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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 13:27:37,433 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:37,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:37,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-06-14 13:27:37,434 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:37,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:37,434 INFO L85 PathProgramCache]: Analyzing trace with hash 881779439, now seen corresponding path program 1 times
[2024-06-14 13:27:37,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:37,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150313480]
[2024-06-14 13:27:37,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:37,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:38,117 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 13:27:38,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:38,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150313480]
[2024-06-14 13:27:38,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150313480] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:38,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:38,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:27:38,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170278139]
[2024-06-14 13:27:38,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:38,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:27:38,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:38,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:27:38,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:27:38,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:38,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 525 flow. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:27:38,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:38,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:38,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:38,601 INFO L124 PetriNetUnfolderBase]: 1503/2273 cut-off events.
[2024-06-14 13:27:38,601 INFO L125 PetriNetUnfolderBase]: For 12840/12847 co-relation queries the response was YES.
[2024-06-14 13:27:38,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9787 conditions, 2273 events. 1503/2273 cut-off events. For 12840/12847 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10322 event pairs, 425 based on Foata normal form. 8/2280 useless extension candidates. Maximal degree in co-relation 9753. Up to 2011 conditions per place.
[2024-06-14 13:27:38,613 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 78 selfloop transitions, 33 changer transitions 0/114 dead transitions.
[2024-06-14 13:27:38,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 114 transitions, 995 flow
[2024-06-14 13:27:38,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:27:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:27:38,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions.
[2024-06-14 13:27:38,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4785714285714286
[2024-06-14 13:27:38,615 INFO L175 Difference]: Start difference. First operand has 72 places, 73 transitions, 525 flow. Second operand 7 states and 134 transitions.
[2024-06-14 13:27:38,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 114 transitions, 995 flow
[2024-06-14 13:27:38,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 114 transitions, 957 flow, removed 7 selfloop flow, removed 4 redundant places.
[2024-06-14 13:27:38,625 INFO L231 Difference]: Finished difference. Result has 76 places, 82 transitions, 670 flow
[2024-06-14 13:27:38,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=670, PETRI_PLACES=76, PETRI_TRANSITIONS=82}
[2024-06-14 13:27:38,625 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 35 predicate places.
[2024-06-14 13:27:38,626 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 82 transitions, 670 flow
[2024-06-14 13:27:38,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:27:38,626 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:38,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:38,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-06-14 13:27:38,626 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:38,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:38,627 INFO L85 PathProgramCache]: Analyzing trace with hash 885444569, now seen corresponding path program 2 times
[2024-06-14 13:27:38,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:38,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328551003]
[2024-06-14 13:27:38,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:38,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:39,438 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 13:27:39,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:39,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328551003]
[2024-06-14 13:27:39,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328551003] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:39,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:39,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:27:39,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316469954]
[2024-06-14 13:27:39,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:39,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:27:39,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:39,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:27:39,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:27:39,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:39,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 82 transitions, 670 flow. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:27:39,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:39,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:39,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:39,922 INFO L124 PetriNetUnfolderBase]: 1509/2281 cut-off events.
[2024-06-14 13:27:39,923 INFO L125 PetriNetUnfolderBase]: For 15689/15691 co-relation queries the response was YES.
[2024-06-14 13:27:39,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10590 conditions, 2281 events. 1509/2281 cut-off events. For 15689/15691 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10326 event pairs, 433 based on Foata normal form. 6/2286 useless extension candidates. Maximal degree in co-relation 10554. Up to 2118 conditions per place.
[2024-06-14 13:27:39,936 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 85 selfloop transitions, 22 changer transitions 0/110 dead transitions.
[2024-06-14 13:27:39,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 110 transitions, 986 flow
[2024-06-14 13:27:39,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:27:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:27:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions.
[2024-06-14 13:27:39,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45
[2024-06-14 13:27:39,938 INFO L175 Difference]: Start difference. First operand has 76 places, 82 transitions, 670 flow. Second operand 7 states and 126 transitions.
[2024-06-14 13:27:39,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 110 transitions, 986 flow
[2024-06-14 13:27:39,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 110 transitions, 946 flow, removed 15 selfloop flow, removed 2 redundant places.
[2024-06-14 13:27:39,954 INFO L231 Difference]: Finished difference. Result has 81 places, 85 transitions, 722 flow
[2024-06-14 13:27:39,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=722, PETRI_PLACES=81, PETRI_TRANSITIONS=85}
[2024-06-14 13:27:39,955 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 40 predicate places.
[2024-06-14 13:27:39,955 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 85 transitions, 722 flow
[2024-06-14 13:27:39,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:27:39,956 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:39,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:39,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-06-14 13:27:39,956 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:39,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:39,956 INFO L85 PathProgramCache]: Analyzing trace with hash 885594671, now seen corresponding path program 1 times
[2024-06-14 13:27:39,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:39,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313310482]
[2024-06-14 13:27:39,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:39,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:40,959 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 13:27:40,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:40,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313310482]
[2024-06-14 13:27:40,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313310482] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:40,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:40,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:40,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109458956]
[2024-06-14 13:27:40,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:40,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:40,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:40,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:40,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:41,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:41,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 85 transitions, 722 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 13:27:41,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:41,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:41,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:41,497 INFO L124 PetriNetUnfolderBase]: 1633/2477 cut-off events.
[2024-06-14 13:27:41,497 INFO L125 PetriNetUnfolderBase]: For 19476/19478 co-relation queries the response was YES.
[2024-06-14 13:27:41,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11871 conditions, 2477 events. 1633/2477 cut-off events. For 19476/19478 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 11301 event pairs, 460 based on Foata normal form. 10/2486 useless extension candidates. Maximal degree in co-relation 11833. Up to 2299 conditions per place.
[2024-06-14 13:27:41,513 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 96 selfloop transitions, 24 changer transitions 0/123 dead transitions.
[2024-06-14 13:27:41,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 123 transitions, 1206 flow
[2024-06-14 13:27:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:27:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:27:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 133 transitions.
[2024-06-14 13:27:41,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.415625
[2024-06-14 13:27:41,515 INFO L175 Difference]: Start difference. First operand has 81 places, 85 transitions, 722 flow. Second operand 8 states and 133 transitions.
[2024-06-14 13:27:41,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 123 transitions, 1206 flow
[2024-06-14 13:27:41,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 123 transitions, 1127 flow, removed 9 selfloop flow, removed 5 redundant places.
[2024-06-14 13:27:41,537 INFO L231 Difference]: Finished difference. Result has 87 places, 100 transitions, 923 flow
[2024-06-14 13:27:41,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=923, PETRI_PLACES=87, PETRI_TRANSITIONS=100}
[2024-06-14 13:27:41,538 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 46 predicate places.
[2024-06-14 13:27:41,539 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 100 transitions, 923 flow
[2024-06-14 13:27:41,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 13:27:41,539 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:41,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:41,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-06-14 13:27:41,539 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:41,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1423151526, now seen corresponding path program 1 times
[2024-06-14 13:27:41,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:41,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940193903]
[2024-06-14 13:27:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:41,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:42,343 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 13:27:42,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:42,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940193903]
[2024-06-14 13:27:42,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940193903] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:42,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:42,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:27:42,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443223545]
[2024-06-14 13:27:42,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:42,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:27:42,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:42,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:27:42,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:27:42,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:42,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 100 transitions, 923 flow. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:27:42,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:42,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:42,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:42,856 INFO L124 PetriNetUnfolderBase]: 1628/2467 cut-off events.
[2024-06-14 13:27:42,857 INFO L125 PetriNetUnfolderBase]: For 21303/21316 co-relation queries the response was YES.
[2024-06-14 13:27:42,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12318 conditions, 2467 events. 1628/2467 cut-off events. For 21303/21316 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 11334 event pairs, 452 based on Foata normal form. 12/2478 useless extension candidates. Maximal degree in co-relation 12276. Up to 2218 conditions per place.
[2024-06-14 13:27:42,871 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 81 selfloop transitions, 38 changer transitions 0/122 dead transitions.
[2024-06-14 13:27:42,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 122 transitions, 1225 flow
[2024-06-14 13:27:42,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:27:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:27:42,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 114 transitions.
[2024-06-14 13:27:42,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.475
[2024-06-14 13:27:42,873 INFO L175 Difference]: Start difference. First operand has 87 places, 100 transitions, 923 flow. Second operand 6 states and 114 transitions.
[2024-06-14 13:27:42,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 122 transitions, 1225 flow
[2024-06-14 13:27:42,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 122 transitions, 1171 flow, removed 18 selfloop flow, removed 2 redundant places.
[2024-06-14 13:27:42,899 INFO L231 Difference]: Finished difference. Result has 91 places, 100 transitions, 965 flow
[2024-06-14 13:27:42,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=965, PETRI_PLACES=91, PETRI_TRANSITIONS=100}
[2024-06-14 13:27:42,900 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 50 predicate places.
[2024-06-14 13:27:42,900 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 100 transitions, 965 flow
[2024-06-14 13:27:42,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:27:42,901 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:42,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:42,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-06-14 13:27:42,901 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:42,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:42,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1423151309, now seen corresponding path program 2 times
[2024-06-14 13:27:42,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:42,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068528736]
[2024-06-14 13:27:42,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:42,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:43,727 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 13:27:43,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:43,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068528736]
[2024-06-14 13:27:43,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068528736] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:43,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:43,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:43,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876690132]
[2024-06-14 13:27:43,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:43,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:43,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:43,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:43,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:43,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:43,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 100 transitions, 965 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 13:27:43,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:43,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:43,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:44,360 INFO L124 PetriNetUnfolderBase]: 1645/2494 cut-off events.
[2024-06-14 13:27:44,360 INFO L125 PetriNetUnfolderBase]: For 25143/25143 co-relation queries the response was YES.
[2024-06-14 13:27:44,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12717 conditions, 2494 events. 1645/2494 cut-off events. For 25143/25143 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 11390 event pairs, 523 based on Foata normal form. 4/2497 useless extension candidates. Maximal degree in co-relation 12673. Up to 2405 conditions per place.
[2024-06-14 13:27:44,374 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 100 selfloop transitions, 19 changer transitions 0/122 dead transitions.
[2024-06-14 13:27:44,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 122 transitions, 1283 flow
[2024-06-14 13:27:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:27:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:27:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 118 transitions.
[2024-06-14 13:27:44,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42142857142857143
[2024-06-14 13:27:44,376 INFO L175 Difference]: Start difference. First operand has 91 places, 100 transitions, 965 flow. Second operand 7 states and 118 transitions.
[2024-06-14 13:27:44,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 122 transitions, 1283 flow
[2024-06-14 13:27:44,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 122 transitions, 1194 flow, removed 2 selfloop flow, removed 5 redundant places.
[2024-06-14 13:27:44,409 INFO L231 Difference]: Finished difference. Result has 93 places, 102 transitions, 954 flow
[2024-06-14 13:27:44,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=954, PETRI_PLACES=93, PETRI_TRANSITIONS=102}
[2024-06-14 13:27:44,410 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 52 predicate places.
[2024-06-14 13:27:44,411 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 102 transitions, 954 flow
[2024-06-14 13:27:44,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 13:27:44,411 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:44,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:44,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-06-14 13:27:44,411 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:44,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:44,412 INFO L85 PathProgramCache]: Analyzing trace with hash 2089323055, now seen corresponding path program 3 times
[2024-06-14 13:27:44,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:44,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88810771]
[2024-06-14 13:27:44,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:44,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:45,177 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 13:27:45,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:45,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88810771]
[2024-06-14 13:27:45,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88810771] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:45,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:45,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:45,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746029174]
[2024-06-14 13:27:45,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:45,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:45,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:45,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:45,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:45,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:45,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 102 transitions, 954 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 13:27:45,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:45,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:45,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:45,754 INFO L124 PetriNetUnfolderBase]: 1662/2521 cut-off events.
[2024-06-14 13:27:45,755 INFO L125 PetriNetUnfolderBase]: For 27456/27456 co-relation queries the response was YES.
[2024-06-14 13:27:45,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13051 conditions, 2521 events. 1662/2521 cut-off events. For 27456/27456 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 11540 event pairs, 511 based on Foata normal form. 4/2524 useless extension candidates. Maximal degree in co-relation 13006. Up to 2441 conditions per place.
[2024-06-14 13:27:45,769 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 106 selfloop transitions, 15 changer transitions 0/124 dead transitions.
[2024-06-14 13:27:45,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 124 transitions, 1278 flow
[2024-06-14 13:27:45,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:27:45,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:27:45,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions.
[2024-06-14 13:27:45,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41785714285714287
[2024-06-14 13:27:45,771 INFO L175 Difference]: Start difference. First operand has 93 places, 102 transitions, 954 flow. Second operand 7 states and 117 transitions.
[2024-06-14 13:27:45,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 124 transitions, 1278 flow
[2024-06-14 13:27:45,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 124 transitions, 1220 flow, removed 12 selfloop flow, removed 5 redundant places.
[2024-06-14 13:27:45,793 INFO L231 Difference]: Finished difference. Result has 95 places, 104 transitions, 969 flow
[2024-06-14 13:27:45,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=969, PETRI_PLACES=95, PETRI_TRANSITIONS=104}
[2024-06-14 13:27:45,793 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 54 predicate places.
[2024-06-14 13:27:45,794 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 104 transitions, 969 flow
[2024-06-14 13:27:45,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 13:27:45,794 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:45,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:45,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-06-14 13:27:45,795 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:45,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:45,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1158314253, now seen corresponding path program 4 times
[2024-06-14 13:27:45,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:45,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066298209]
[2024-06-14 13:27:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:45,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:46,665 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 13:27:46,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:46,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066298209]
[2024-06-14 13:27:46,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066298209] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:46,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:46,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:46,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292682063]
[2024-06-14 13:27:46,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:46,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:46,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:46,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:46,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:46,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:46,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 104 transitions, 969 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 13:27:46,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:46,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:46,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:47,317 INFO L124 PetriNetUnfolderBase]: 1791/2719 cut-off events.
[2024-06-14 13:27:47,318 INFO L125 PetriNetUnfolderBase]: For 31967/31969 co-relation queries the response was YES.
[2024-06-14 13:27:47,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14355 conditions, 2719 events. 1791/2719 cut-off events. For 31967/31969 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 12719 event pairs, 448 based on Foata normal form. 10/2728 useless extension candidates. Maximal degree in co-relation 14309. Up to 2359 conditions per place.
[2024-06-14 13:27:47,333 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 105 selfloop transitions, 51 changer transitions 0/159 dead transitions.
[2024-06-14 13:27:47,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 159 transitions, 1680 flow
[2024-06-14 13:27:47,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:27:47,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:27:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 145 transitions.
[2024-06-14 13:27:47,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.453125
[2024-06-14 13:27:47,335 INFO L175 Difference]: Start difference. First operand has 95 places, 104 transitions, 969 flow. Second operand 8 states and 145 transitions.
[2024-06-14 13:27:47,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 159 transitions, 1680 flow
[2024-06-14 13:27:47,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 159 transitions, 1625 flow, removed 14 selfloop flow, removed 5 redundant places.
[2024-06-14 13:27:47,366 INFO L231 Difference]: Finished difference. Result has 101 places, 128 transitions, 1381 flow
[2024-06-14 13:27:47,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1381, PETRI_PLACES=101, PETRI_TRANSITIONS=128}
[2024-06-14 13:27:47,367 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 60 predicate places.
[2024-06-14 13:27:47,367 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 128 transitions, 1381 flow
[2024-06-14 13:27:47,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 13:27:47,367 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:47,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:47,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-06-14 13:27:47,367 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:47,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:47,368 INFO L85 PathProgramCache]: Analyzing trace with hash -747635613, now seen corresponding path program 1 times
[2024-06-14 13:27:47,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:47,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564584405]
[2024-06-14 13:27:47,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:47,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:48,177 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 13:27:48,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:48,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564584405]
[2024-06-14 13:27:48,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564584405] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:48,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:48,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:48,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312886405]
[2024-06-14 13:27:48,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:48,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:48,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:48,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:48,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:48,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:48,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 128 transitions, 1381 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:48,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:48,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:48,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:48,793 INFO L124 PetriNetUnfolderBase]: 2190/3375 cut-off events.
[2024-06-14 13:27:48,793 INFO L125 PetriNetUnfolderBase]: For 45253/45255 co-relation queries the response was YES.
[2024-06-14 13:27:48,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18362 conditions, 3375 events. 2190/3375 cut-off events. For 45253/45255 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 17009 event pairs, 656 based on Foata normal form. 18/3392 useless extension candidates. Maximal degree in co-relation 18312. Up to 2439 conditions per place.
[2024-06-14 13:27:48,811 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 134 selfloop transitions, 46 changer transitions 0/183 dead transitions.
[2024-06-14 13:27:48,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 183 transitions, 2093 flow
[2024-06-14 13:27:48,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:27:48,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:27:48,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 159 transitions.
[2024-06-14 13:27:48,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44166666666666665
[2024-06-14 13:27:48,815 INFO L175 Difference]: Start difference. First operand has 101 places, 128 transitions, 1381 flow. Second operand 9 states and 159 transitions.
[2024-06-14 13:27:48,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 183 transitions, 2093 flow
[2024-06-14 13:27:48,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 183 transitions, 1992 flow, removed 17 selfloop flow, removed 4 redundant places.
[2024-06-14 13:27:48,852 INFO L231 Difference]: Finished difference. Result has 108 places, 142 transitions, 1558 flow
[2024-06-14 13:27:48,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1558, PETRI_PLACES=108, PETRI_TRANSITIONS=142}
[2024-06-14 13:27:48,853 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 67 predicate places.
[2024-06-14 13:27:48,853 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 142 transitions, 1558 flow
[2024-06-14 13:27:48,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:48,853 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:48,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:48,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-06-14 13:27:48,854 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:48,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:48,854 INFO L85 PathProgramCache]: Analyzing trace with hash -747575163, now seen corresponding path program 2 times
[2024-06-14 13:27:48,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:48,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697209508]
[2024-06-14 13:27:48,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:48,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:49,826 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 13:27:49,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:49,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697209508]
[2024-06-14 13:27:49,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697209508] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:49,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:49,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:49,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114726226]
[2024-06-14 13:27:49,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:49,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:49,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:49,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:49,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:49,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:49,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 142 transitions, 1558 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:49,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:49,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:49,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:50,495 INFO L124 PetriNetUnfolderBase]: 2215/3421 cut-off events.
[2024-06-14 13:27:50,495 INFO L125 PetriNetUnfolderBase]: For 49053/49055 co-relation queries the response was YES.
[2024-06-14 13:27:50,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18876 conditions, 3421 events. 2215/3421 cut-off events. For 49053/49055 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 17312 event pairs, 680 based on Foata normal form. 22/3442 useless extension candidates. Maximal degree in co-relation 18823. Up to 2877 conditions per place.
[2024-06-14 13:27:50,517 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 127 selfloop transitions, 51 changer transitions 0/181 dead transitions.
[2024-06-14 13:27:50,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 181 transitions, 2084 flow
[2024-06-14 13:27:50,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 13:27:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 13:27:50,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 171 transitions.
[2024-06-14 13:27:50,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4275
[2024-06-14 13:27:50,520 INFO L175 Difference]: Start difference. First operand has 108 places, 142 transitions, 1558 flow. Second operand 10 states and 171 transitions.
[2024-06-14 13:27:50,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 181 transitions, 2084 flow
[2024-06-14 13:27:50,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 181 transitions, 2038 flow, removed 6 selfloop flow, removed 4 redundant places.
[2024-06-14 13:27:50,580 INFO L231 Difference]: Finished difference. Result has 115 places, 144 transitions, 1674 flow
[2024-06-14 13:27:50,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1512, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1674, PETRI_PLACES=115, PETRI_TRANSITIONS=144}
[2024-06-14 13:27:50,581 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 74 predicate places.
[2024-06-14 13:27:50,581 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 144 transitions, 1674 flow
[2024-06-14 13:27:50,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:50,581 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:50,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:50,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-06-14 13:27:50,582 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:50,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1683632195, now seen corresponding path program 1 times
[2024-06-14 13:27:50,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:50,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726507106]
[2024-06-14 13:27:50,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:50,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:51,366 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 13:27:51,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:51,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726507106]
[2024-06-14 13:27:51,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726507106] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:51,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:51,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:51,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601537164]
[2024-06-14 13:27:51,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:51,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:51,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:51,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:51,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:51,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:51,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 144 transitions, 1674 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:51,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:51,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:51,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:51,950 INFO L124 PetriNetUnfolderBase]: 2224/3424 cut-off events.
[2024-06-14 13:27:51,950 INFO L125 PetriNetUnfolderBase]: For 50496/50505 co-relation queries the response was YES.
[2024-06-14 13:27:51,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19380 conditions, 3424 events. 2224/3424 cut-off events. For 50496/50505 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 17294 event pairs, 561 based on Foata normal form. 16/3439 useless extension candidates. Maximal degree in co-relation 19324. Up to 2898 conditions per place.
[2024-06-14 13:27:51,975 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 117 selfloop transitions, 54 changer transitions 0/174 dead transitions.
[2024-06-14 13:27:51,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 174 transitions, 2184 flow
[2024-06-14 13:27:51,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:27:51,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:27:51,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions.
[2024-06-14 13:27:51,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284
[2024-06-14 13:27:51,977 INFO L175 Difference]: Start difference. First operand has 115 places, 144 transitions, 1674 flow. Second operand 7 states and 124 transitions.
[2024-06-14 13:27:51,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 174 transitions, 2184 flow
[2024-06-14 13:27:52,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 174 transitions, 2088 flow, removed 4 selfloop flow, removed 7 redundant places.
[2024-06-14 13:27:52,050 INFO L231 Difference]: Finished difference. Result has 116 places, 151 transitions, 1832 flow
[2024-06-14 13:27:52,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1578, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1832, PETRI_PLACES=116, PETRI_TRANSITIONS=151}
[2024-06-14 13:27:52,051 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 75 predicate places.
[2024-06-14 13:27:52,051 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 151 transitions, 1832 flow
[2024-06-14 13:27:52,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:52,051 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:52,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:52,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-06-14 13:27:52,052 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:52,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:52,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1168022959, now seen corresponding path program 2 times
[2024-06-14 13:27:52,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:52,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96573169]
[2024-06-14 13:27:52,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:52,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:53,018 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 13:27:53,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:53,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96573169]
[2024-06-14 13:27:53,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96573169] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:53,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:53,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:53,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132183479]
[2024-06-14 13:27:53,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:53,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:53,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:53,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:53,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:53,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:53,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 151 transitions, 1832 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:53,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:53,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:53,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:53,724 INFO L124 PetriNetUnfolderBase]: 2241/3449 cut-off events.
[2024-06-14 13:27:53,724 INFO L125 PetriNetUnfolderBase]: For 53915/53929 co-relation queries the response was YES.
[2024-06-14 13:27:53,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20094 conditions, 3449 events. 2241/3449 cut-off events. For 53915/53929 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 17491 event pairs, 544 based on Foata normal form. 16/3464 useless extension candidates. Maximal degree in co-relation 20036. Up to 3061 conditions per place.
[2024-06-14 13:27:53,750 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 119 selfloop transitions, 58 changer transitions 0/180 dead transitions.
[2024-06-14 13:27:53,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 180 transitions, 2314 flow
[2024-06-14 13:27:53,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:27:53,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:27:53,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions.
[2024-06-14 13:27:53,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4607142857142857
[2024-06-14 13:27:53,752 INFO L175 Difference]: Start difference. First operand has 116 places, 151 transitions, 1832 flow. Second operand 7 states and 129 transitions.
[2024-06-14 13:27:53,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 180 transitions, 2314 flow
[2024-06-14 13:27:53,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 180 transitions, 2207 flow, removed 33 selfloop flow, removed 3 redundant places.
[2024-06-14 13:27:53,825 INFO L231 Difference]: Finished difference. Result has 120 places, 153 transitions, 1898 flow
[2024-06-14 13:27:53,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1725, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1898, PETRI_PLACES=120, PETRI_TRANSITIONS=153}
[2024-06-14 13:27:53,825 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 79 predicate places.
[2024-06-14 13:27:53,825 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 153 transitions, 1898 flow
[2024-06-14 13:27:53,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:53,826 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:53,826 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:53,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-06-14 13:27:53,826 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:53,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:53,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1168023145, now seen corresponding path program 1 times
[2024-06-14 13:27:53,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:53,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737178461]
[2024-06-14 13:27:53,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:53,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:54,765 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 13:27:54,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:54,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737178461]
[2024-06-14 13:27:54,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737178461] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:54,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:54,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:27:54,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103254495]
[2024-06-14 13:27:54,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:54,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:27:54,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:54,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:27:54,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:27:54,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:54,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 153 transitions, 1898 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 13:27:54,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:54,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:54,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:55,453 INFO L124 PetriNetUnfolderBase]: 2236/3442 cut-off events.
[2024-06-14 13:27:55,454 INFO L125 PetriNetUnfolderBase]: For 57190/57204 co-relation queries the response was YES.
[2024-06-14 13:27:55,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20492 conditions, 3442 events. 2236/3442 cut-off events. For 57190/57204 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 17415 event pairs, 551 based on Foata normal form. 14/3455 useless extension candidates. Maximal degree in co-relation 20432. Up to 3021 conditions per place.
[2024-06-14 13:27:55,479 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 116 selfloop transitions, 64 changer transitions 0/183 dead transitions.
[2024-06-14 13:27:55,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 183 transitions, 2360 flow
[2024-06-14 13:27:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:27:55,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:27:55,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions.
[2024-06-14 13:27:55,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4785714285714286
[2024-06-14 13:27:55,481 INFO L175 Difference]: Start difference. First operand has 120 places, 153 transitions, 1898 flow. Second operand 7 states and 134 transitions.
[2024-06-14 13:27:55,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 183 transitions, 2360 flow
[2024-06-14 13:27:55,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 183 transitions, 2207 flow, removed 23 selfloop flow, removed 5 redundant places.
[2024-06-14 13:27:55,601 INFO L231 Difference]: Finished difference. Result has 122 places, 153 transitions, 1893 flow
[2024-06-14 13:27:55,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1745, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1893, PETRI_PLACES=122, PETRI_TRANSITIONS=153}
[2024-06-14 13:27:55,601 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 81 predicate places.
[2024-06-14 13:27:55,601 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 153 transitions, 1893 flow
[2024-06-14 13:27:55,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 13:27:55,601 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:55,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:55,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-06-14 13:27:55,602 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:55,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:55,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1159742239, now seen corresponding path program 3 times
[2024-06-14 13:27:55,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:55,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341829224]
[2024-06-14 13:27:55,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:55,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:56,482 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 13:27:56,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:56,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341829224]
[2024-06-14 13:27:56,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341829224] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:56,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:56,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:56,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5394345]
[2024-06-14 13:27:56,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:56,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:56,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:56,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:56,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:56,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:56,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 153 transitions, 1893 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:56,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:56,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:56,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:57,206 INFO L124 PetriNetUnfolderBase]: 2253/3475 cut-off events.
[2024-06-14 13:27:57,206 INFO L125 PetriNetUnfolderBase]: For 63330/63336 co-relation queries the response was YES.
[2024-06-14 13:27:57,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20847 conditions, 3475 events. 2253/3475 cut-off events. For 63330/63336 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 17595 event pairs, 739 based on Foata normal form. 8/3482 useless extension candidates. Maximal degree in co-relation 20786. Up to 3357 conditions per place.
[2024-06-14 13:27:57,232 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 156 selfloop transitions, 17 changer transitions 0/176 dead transitions.
[2024-06-14 13:27:57,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 176 transitions, 2343 flow
[2024-06-14 13:27:57,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:27:57,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:27:57,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions.
[2024-06-14 13:27:57,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.396875
[2024-06-14 13:27:57,234 INFO L175 Difference]: Start difference. First operand has 122 places, 153 transitions, 1893 flow. Second operand 8 states and 127 transitions.
[2024-06-14 13:27:57,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 176 transitions, 2343 flow
[2024-06-14 13:27:57,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 176 transitions, 2199 flow, removed 3 selfloop flow, removed 6 redundant places.
[2024-06-14 13:27:57,311 INFO L231 Difference]: Finished difference. Result has 124 places, 155 transitions, 1838 flow
[2024-06-14 13:27:57,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1749, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1838, PETRI_PLACES=124, PETRI_TRANSITIONS=155}
[2024-06-14 13:27:57,312 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 83 predicate places.
[2024-06-14 13:27:57,312 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 155 transitions, 1838 flow
[2024-06-14 13:27:57,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:57,312 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:57,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:57,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-06-14 13:27:57,313 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:57,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:57,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1168016449, now seen corresponding path program 4 times
[2024-06-14 13:27:57,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:57,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150938628]
[2024-06-14 13:27:57,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:57,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:58,131 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 13:27:58,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:58,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150938628]
[2024-06-14 13:27:58,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150938628] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:58,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:58,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:58,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011537547]
[2024-06-14 13:27:58,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:58,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:58,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:58,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:58,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:58,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:58,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 155 transitions, 1838 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:58,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:58,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:58,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:27:58,746 INFO L124 PetriNetUnfolderBase]: 2245/3460 cut-off events.
[2024-06-14 13:27:58,747 INFO L125 PetriNetUnfolderBase]: For 65600/65613 co-relation queries the response was YES.
[2024-06-14 13:27:58,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20619 conditions, 3460 events. 2245/3460 cut-off events. For 65600/65613 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 17528 event pairs, 562 based on Foata normal form. 14/3473 useless extension candidates. Maximal degree in co-relation 20557. Up to 2847 conditions per place.
[2024-06-14 13:27:58,772 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 110 selfloop transitions, 67 changer transitions 0/180 dead transitions.
[2024-06-14 13:27:58,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 180 transitions, 2308 flow
[2024-06-14 13:27:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:27:58,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:27:58,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions.
[2024-06-14 13:27:58,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145
[2024-06-14 13:27:58,774 INFO L175 Difference]: Start difference. First operand has 124 places, 155 transitions, 1838 flow. Second operand 7 states and 125 transitions.
[2024-06-14 13:27:58,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 180 transitions, 2308 flow
[2024-06-14 13:27:58,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 180 transitions, 2237 flow, removed 20 selfloop flow, removed 6 redundant places.
[2024-06-14 13:27:58,855 INFO L231 Difference]: Finished difference. Result has 125 places, 157 transitions, 1967 flow
[2024-06-14 13:27:58,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1767, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1967, PETRI_PLACES=125, PETRI_TRANSITIONS=157}
[2024-06-14 13:27:58,855 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 84 predicate places.
[2024-06-14 13:27:58,855 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 157 transitions, 1967 flow
[2024-06-14 13:27:58,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:58,856 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:27:58,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:27:58,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-06-14 13:27:58,856 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:27:58,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:27:58,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1989558971, now seen corresponding path program 3 times
[2024-06-14 13:27:58,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:27:58,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923232889]
[2024-06-14 13:27:58,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:27:58,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:27:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:27:59,498 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 13:27:59,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:27:59,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923232889]
[2024-06-14 13:27:59,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923232889] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:27:59,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:27:59,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:27:59,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178345174]
[2024-06-14 13:27:59,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:27:59,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:27:59,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:27:59,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:27:59,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:27:59,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:27:59,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 157 transitions, 1967 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:27:59,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:27:59,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:27:59,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:00,312 INFO L124 PetriNetUnfolderBase]: 2785/4321 cut-off events.
[2024-06-14 13:28:00,312 INFO L125 PetriNetUnfolderBase]: For 91316/91325 co-relation queries the response was YES.
[2024-06-14 13:28:00,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26585 conditions, 4321 events. 2785/4321 cut-off events. For 91316/91325 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 23315 event pairs, 655 based on Foata normal form. 24/4344 useless extension candidates. Maximal degree in co-relation 26522. Up to 3048 conditions per place.
[2024-06-14 13:28:00,346 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 179 selfloop transitions, 72 changer transitions 0/254 dead transitions.
[2024-06-14 13:28:00,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 254 transitions, 3507 flow
[2024-06-14 13:28:00,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:28:00,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:28:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 170 transitions.
[2024-06-14 13:28:00,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222
[2024-06-14 13:28:00,348 INFO L175 Difference]: Start difference. First operand has 125 places, 157 transitions, 1967 flow. Second operand 9 states and 170 transitions.
[2024-06-14 13:28:00,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 254 transitions, 3507 flow
[2024-06-14 13:28:00,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 254 transitions, 3305 flow, removed 19 selfloop flow, removed 5 redundant places.
[2024-06-14 13:28:00,470 INFO L231 Difference]: Finished difference. Result has 133 places, 199 transitions, 2745 flow
[2024-06-14 13:28:00,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1805, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2745, PETRI_PLACES=133, PETRI_TRANSITIONS=199}
[2024-06-14 13:28:00,471 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 92 predicate places.
[2024-06-14 13:28:00,471 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 199 transitions, 2745 flow
[2024-06-14 13:28:00,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:28:00,472 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:00,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:00,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-06-14 13:28:00,472 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:00,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1708132117, now seen corresponding path program 4 times
[2024-06-14 13:28:00,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:00,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084871354]
[2024-06-14 13:28:00,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:00,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:01,193 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 13:28:01,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:01,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084871354]
[2024-06-14 13:28:01,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084871354] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:01,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:01,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:28:01,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879913792]
[2024-06-14 13:28:01,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:01,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:28:01,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:01,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:28:01,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:28:01,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:01,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 199 transitions, 2745 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:28:01,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:01,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:01,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:02,204 INFO L124 PetriNetUnfolderBase]: 2873/4467 cut-off events.
[2024-06-14 13:28:02,205 INFO L125 PetriNetUnfolderBase]: For 100344/100373 co-relation queries the response was YES.
[2024-06-14 13:28:02,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28470 conditions, 4467 events. 2873/4467 cut-off events. For 100344/100373 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 24439 event pairs, 670 based on Foata normal form. 46/4512 useless extension candidates. Maximal degree in co-relation 28402. Up to 3787 conditions per place.
[2024-06-14 13:28:02,246 INFO L140 encePairwiseOnDemand]: 26/40 looper letters, 178 selfloop transitions, 72 changer transitions 0/253 dead transitions.
[2024-06-14 13:28:02,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 253 transitions, 3588 flow
[2024-06-14 13:28:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 13:28:02,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 13:28:02,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 182 transitions.
[2024-06-14 13:28:02,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.455
[2024-06-14 13:28:02,253 INFO L175 Difference]: Start difference. First operand has 133 places, 199 transitions, 2745 flow. Second operand 10 states and 182 transitions.
[2024-06-14 13:28:02,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 253 transitions, 3588 flow
[2024-06-14 13:28:02,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 253 transitions, 3557 flow, removed 11 selfloop flow, removed 2 redundant places.
[2024-06-14 13:28:02,512 INFO L231 Difference]: Finished difference. Result has 142 places, 206 transitions, 3023 flow
[2024-06-14 13:28:02,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=2714, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3023, PETRI_PLACES=142, PETRI_TRANSITIONS=206}
[2024-06-14 13:28:02,513 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 101 predicate places.
[2024-06-14 13:28:02,513 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 206 transitions, 3023 flow
[2024-06-14 13:28:02,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:28:02,513 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:02,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:02,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-06-14 13:28:02,513 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:02,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:02,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1763868023, now seen corresponding path program 5 times
[2024-06-14 13:28:02,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:02,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214615876]
[2024-06-14 13:28:02,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:02,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:02,987 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 13:28:02,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:02,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214615876]
[2024-06-14 13:28:02,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214615876] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:02,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:02,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:02,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377037430]
[2024-06-14 13:28:02,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:02,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:02,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:02,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:02,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:03,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:03,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 206 transitions, 3023 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 13:28:03,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:03,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:03,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:04,054 INFO L124 PetriNetUnfolderBase]: 3664/5846 cut-off events.
[2024-06-14 13:28:04,054 INFO L125 PetriNetUnfolderBase]: For 138216/138245 co-relation queries the response was YES.
[2024-06-14 13:28:04,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37393 conditions, 5846 events. 3664/5846 cut-off events. For 138216/138245 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 35382 event pairs, 626 based on Foata normal form. 36/5881 useless extension candidates. Maximal degree in co-relation 37322. Up to 2369 conditions per place.
[2024-06-14 13:28:04,099 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 144 selfloop transitions, 140 changer transitions 0/287 dead transitions.
[2024-06-14 13:28:04,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 287 transitions, 4516 flow
[2024-06-14 13:28:04,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:28:04,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:28:04,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 158 transitions.
[2024-06-14 13:28:04,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49375
[2024-06-14 13:28:04,101 INFO L175 Difference]: Start difference. First operand has 142 places, 206 transitions, 3023 flow. Second operand 8 states and 158 transitions.
[2024-06-14 13:28:04,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 287 transitions, 4516 flow
[2024-06-14 13:28:04,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 287 transitions, 4357 flow, removed 16 selfloop flow, removed 7 redundant places.
[2024-06-14 13:28:04,334 INFO L231 Difference]: Finished difference. Result has 145 places, 235 transitions, 3779 flow
[2024-06-14 13:28:04,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=2883, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3779, PETRI_PLACES=145, PETRI_TRANSITIONS=235}
[2024-06-14 13:28:04,335 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 104 predicate places.
[2024-06-14 13:28:04,335 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 235 transitions, 3779 flow
[2024-06-14 13:28:04,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 13:28:04,335 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:04,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:04,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-06-14 13:28:04,336 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:04,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:04,336 INFO L85 PathProgramCache]: Analyzing trace with hash -422438465, now seen corresponding path program 6 times
[2024-06-14 13:28:04,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:04,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85509687]
[2024-06-14 13:28:04,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:04,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:04,860 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 13:28:04,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:04,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85509687]
[2024-06-14 13:28:04,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85509687] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:04,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:04,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:04,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755184010]
[2024-06-14 13:28:04,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:04,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:04,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:04,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:04,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:04,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:04,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 235 transitions, 3779 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 13:28:04,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:04,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:04,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:05,987 INFO L124 PetriNetUnfolderBase]: 4296/6835 cut-off events.
[2024-06-14 13:28:05,987 INFO L125 PetriNetUnfolderBase]: For 177805/177834 co-relation queries the response was YES.
[2024-06-14 13:28:06,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46292 conditions, 6835 events. 4296/6835 cut-off events. For 177805/177834 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 42582 event pairs, 1234 based on Foata normal form. 44/6878 useless extension candidates. Maximal degree in co-relation 46218. Up to 3948 conditions per place.
[2024-06-14 13:28:06,057 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 168 selfloop transitions, 153 changer transitions 0/324 dead transitions.
[2024-06-14 13:28:06,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 324 transitions, 5494 flow
[2024-06-14 13:28:06,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:28:06,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:28:06,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 156 transitions.
[2024-06-14 13:28:06,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4875
[2024-06-14 13:28:06,059 INFO L175 Difference]: Start difference. First operand has 145 places, 235 transitions, 3779 flow. Second operand 8 states and 156 transitions.
[2024-06-14 13:28:06,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 324 transitions, 5494 flow
[2024-06-14 13:28:06,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 324 transitions, 5336 flow, removed 27 selfloop flow, removed 3 redundant places.
[2024-06-14 13:28:06,427 INFO L231 Difference]: Finished difference. Result has 152 places, 272 transitions, 4773 flow
[2024-06-14 13:28:06,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=3662, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4773, PETRI_PLACES=152, PETRI_TRANSITIONS=272}
[2024-06-14 13:28:06,428 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 111 predicate places.
[2024-06-14 13:28:06,428 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 272 transitions, 4773 flow
[2024-06-14 13:28:06,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 13:28:06,428 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:06,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:06,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-06-14 13:28:06,429 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:06,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:06,429 INFO L85 PathProgramCache]: Analyzing trace with hash -421830245, now seen corresponding path program 7 times
[2024-06-14 13:28:06,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:06,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13834448]
[2024-06-14 13:28:06,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:06,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:07,000 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 13:28:07,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:07,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13834448]
[2024-06-14 13:28:07,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13834448] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:07,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:07,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:07,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164861025]
[2024-06-14 13:28:07,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:07,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:07,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:07,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:07,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:07,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:07,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 272 transitions, 4773 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 13:28:07,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:07,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:07,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:08,380 INFO L124 PetriNetUnfolderBase]: 4356/6925 cut-off events.
[2024-06-14 13:28:08,380 INFO L125 PetriNetUnfolderBase]: For 187506/187563 co-relation queries the response was YES.
[2024-06-14 13:28:08,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48302 conditions, 6925 events. 4356/6925 cut-off events. For 187506/187563 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 43409 event pairs, 1294 based on Foata normal form. 70/6994 useless extension candidates. Maximal degree in co-relation 48224. Up to 5589 conditions per place.
[2024-06-14 13:28:08,446 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 184 selfloop transitions, 128 changer transitions 0/315 dead transitions.
[2024-06-14 13:28:08,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 315 transitions, 5718 flow
[2024-06-14 13:28:08,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:28:08,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:28:08,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions.
[2024-06-14 13:28:08,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.478125
[2024-06-14 13:28:08,447 INFO L175 Difference]: Start difference. First operand has 152 places, 272 transitions, 4773 flow. Second operand 8 states and 153 transitions.
[2024-06-14 13:28:08,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 315 transitions, 5718 flow
[2024-06-14 13:28:08,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 315 transitions, 5630 flow, removed 37 selfloop flow, removed 3 redundant places.
[2024-06-14 13:28:08,845 INFO L231 Difference]: Finished difference. Result has 158 places, 278 transitions, 5173 flow
[2024-06-14 13:28:08,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=4691, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5173, PETRI_PLACES=158, PETRI_TRANSITIONS=278}
[2024-06-14 13:28:08,847 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 117 predicate places.
[2024-06-14 13:28:08,847 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 278 transitions, 5173 flow
[2024-06-14 13:28:08,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 13:28:08,847 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:08,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:08,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-06-14 13:28:08,848 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:08,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:08,848 INFO L85 PathProgramCache]: Analyzing trace with hash -2064633939, now seen corresponding path program 1 times
[2024-06-14 13:28:08,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:08,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746700170]
[2024-06-14 13:28:08,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:08,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:09,293 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 13:28:09,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:09,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746700170]
[2024-06-14 13:28:09,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746700170] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:09,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:09,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 13:28:09,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315822438]
[2024-06-14 13:28:09,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:09,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 13:28:09,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:09,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 13:28:09,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-06-14 13:28:09,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:09,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 278 transitions, 5173 flow. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:28:09,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:09,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:09,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:10,456 INFO L124 PetriNetUnfolderBase]: 4386/6968 cut-off events.
[2024-06-14 13:28:10,456 INFO L125 PetriNetUnfolderBase]: For 186024/186024 co-relation queries the response was YES.
[2024-06-14 13:28:10,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49444 conditions, 6968 events. 4386/6968 cut-off events. For 186024/186024 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 43751 event pairs, 1985 based on Foata normal form. 6/6973 useless extension candidates. Maximal degree in co-relation 49364. Up to 6757 conditions per place.
[2024-06-14 13:28:10,523 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 279 selfloop transitions, 21 changer transitions 0/303 dead transitions.
[2024-06-14 13:28:10,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 303 transitions, 5951 flow
[2024-06-14 13:28:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:28:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:28:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions.
[2024-06-14 13:28:10,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45
[2024-06-14 13:28:10,525 INFO L175 Difference]: Start difference. First operand has 158 places, 278 transitions, 5173 flow. Second operand 6 states and 108 transitions.
[2024-06-14 13:28:10,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 303 transitions, 5951 flow
[2024-06-14 13:28:10,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 303 transitions, 5706 flow, removed 17 selfloop flow, removed 5 redundant places.
[2024-06-14 13:28:10,928 INFO L231 Difference]: Finished difference. Result has 159 places, 284 transitions, 5039 flow
[2024-06-14 13:28:10,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=4928, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5039, PETRI_PLACES=159, PETRI_TRANSITIONS=284}
[2024-06-14 13:28:10,929 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 118 predicate places.
[2024-06-14 13:28:10,929 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 284 transitions, 5039 flow
[2024-06-14 13:28:10,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:28:10,929 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:10,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:10,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2024-06-14 13:28:10,930 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:10,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:10,930 INFO L85 PathProgramCache]: Analyzing trace with hash 116268239, now seen corresponding path program 2 times
[2024-06-14 13:28:10,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:10,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225345147]
[2024-06-14 13:28:10,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:10,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:11,411 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 13:28:11,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:11,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225345147]
[2024-06-14 13:28:11,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225345147] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:11,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:11,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 13:28:11,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300178356]
[2024-06-14 13:28:11,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:11,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 13:28:11,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:11,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 13:28:11,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-06-14 13:28:11,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:11,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 284 transitions, 5039 flow. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:28:11,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:11,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:11,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:12,571 INFO L124 PetriNetUnfolderBase]: 4368/6942 cut-off events.
[2024-06-14 13:28:12,571 INFO L125 PetriNetUnfolderBase]: For 184282/184282 co-relation queries the response was YES.
[2024-06-14 13:28:12,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49023 conditions, 6942 events. 4368/6942 cut-off events. For 184282/184282 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 43586 event pairs, 1989 based on Foata normal form. 6/6947 useless extension candidates. Maximal degree in co-relation 48942. Up to 6770 conditions per place.
[2024-06-14 13:28:12,644 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 277 selfloop transitions, 18 changer transitions 0/298 dead transitions.
[2024-06-14 13:28:12,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 298 transitions, 5677 flow
[2024-06-14 13:28:12,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 13:28:12,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 13:28:12,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions.
[2024-06-14 13:28:12,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46
[2024-06-14 13:28:12,645 INFO L175 Difference]: Start difference. First operand has 159 places, 284 transitions, 5039 flow. Second operand 5 states and 92 transitions.
[2024-06-14 13:28:12,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 298 transitions, 5677 flow
[2024-06-14 13:28:13,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 298 transitions, 5634 flow, removed 16 selfloop flow, removed 2 redundant places.
[2024-06-14 13:28:13,021 INFO L231 Difference]: Finished difference. Result has 162 places, 284 transitions, 5045 flow
[2024-06-14 13:28:13,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=4996, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5045, PETRI_PLACES=162, PETRI_TRANSITIONS=284}
[2024-06-14 13:28:13,022 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 121 predicate places.
[2024-06-14 13:28:13,022 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 284 transitions, 5045 flow
[2024-06-14 13:28:13,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:28:13,022 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:13,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:13,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2024-06-14 13:28:13,023 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:13,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:13,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1783299869, now seen corresponding path program 1 times
[2024-06-14 13:28:13,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:13,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170749379]
[2024-06-14 13:28:13,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:13,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:13,597 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 13:28:13,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:13,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170749379]
[2024-06-14 13:28:13,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170749379] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:13,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:13,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:13,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282529207]
[2024-06-14 13:28:13,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:13,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:13,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:13,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:13,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:13,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:13,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 284 transitions, 5045 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:13,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:13,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:13,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:14,763 INFO L124 PetriNetUnfolderBase]: 4557/7197 cut-off events.
[2024-06-14 13:28:14,763 INFO L125 PetriNetUnfolderBase]: For 198410/198420 co-relation queries the response was YES.
[2024-06-14 13:28:14,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51268 conditions, 7197 events. 4557/7197 cut-off events. For 198410/198420 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 45203 event pairs, 1580 based on Foata normal form. 19/7215 useless extension candidates. Maximal degree in co-relation 51185. Up to 6519 conditions per place.
[2024-06-14 13:28:14,842 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 268 selfloop transitions, 63 changer transitions 0/334 dead transitions.
[2024-06-14 13:28:14,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 334 transitions, 6166 flow
[2024-06-14 13:28:14,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:28:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:28:14,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions.
[2024-06-14 13:28:14,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48928571428571427
[2024-06-14 13:28:14,843 INFO L175 Difference]: Start difference. First operand has 162 places, 284 transitions, 5045 flow. Second operand 7 states and 137 transitions.
[2024-06-14 13:28:14,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 334 transitions, 6166 flow
[2024-06-14 13:28:15,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 334 transitions, 6128 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-06-14 13:28:15,310 INFO L231 Difference]: Finished difference. Result has 167 places, 300 transitions, 5397 flow
[2024-06-14 13:28:15,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5009, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5397, PETRI_PLACES=167, PETRI_TRANSITIONS=300}
[2024-06-14 13:28:15,311 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 126 predicate places.
[2024-06-14 13:28:15,311 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 300 transitions, 5397 flow
[2024-06-14 13:28:15,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:15,311 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:15,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:15,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2024-06-14 13:28:15,312 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:15,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:15,312 INFO L85 PathProgramCache]: Analyzing trace with hash 652991694, now seen corresponding path program 1 times
[2024-06-14 13:28:15,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:15,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428377300]
[2024-06-14 13:28:15,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:15,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:16,430 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 13:28:16,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:16,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428377300]
[2024-06-14 13:28:16,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428377300] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:16,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:16,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:28:16,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919429761]
[2024-06-14 13:28:16,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:16,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:28:16,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:16,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:28:16,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:28:16,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:16,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 300 transitions, 5397 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 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 13:28:16,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:16,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:16,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:17,816 INFO L124 PetriNetUnfolderBase]: 4465/7061 cut-off events.
[2024-06-14 13:28:17,817 INFO L125 PetriNetUnfolderBase]: For 209552/209563 co-relation queries the response was YES.
[2024-06-14 13:28:17,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50765 conditions, 7061 events. 4465/7061 cut-off events. For 209552/209563 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 44286 event pairs, 1447 based on Foata normal form. 58/7118 useless extension candidates. Maximal degree in co-relation 50679. Up to 5955 conditions per place.
[2024-06-14 13:28:17,873 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 239 selfloop transitions, 88 changer transitions 0/330 dead transitions.
[2024-06-14 13:28:17,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 330 transitions, 6155 flow
[2024-06-14 13:28:17,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:28:17,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:28:17,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 140 transitions.
[2024-06-14 13:28:17,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375
[2024-06-14 13:28:17,875 INFO L175 Difference]: Start difference. First operand has 167 places, 300 transitions, 5397 flow. Second operand 8 states and 140 transitions.
[2024-06-14 13:28:17,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 330 transitions, 6155 flow
[2024-06-14 13:28:18,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 330 transitions, 6071 flow, removed 41 selfloop flow, removed 1 redundant places.
[2024-06-14 13:28:18,353 INFO L231 Difference]: Finished difference. Result has 174 places, 300 transitions, 5500 flow
[2024-06-14 13:28:18,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5313, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5500, PETRI_PLACES=174, PETRI_TRANSITIONS=300}
[2024-06-14 13:28:18,354 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 133 predicate places.
[2024-06-14 13:28:18,354 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 300 transitions, 5500 flow
[2024-06-14 13:28:18,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 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 13:28:18,354 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:18,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:18,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2024-06-14 13:28:18,355 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:18,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:18,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1709857787, now seen corresponding path program 2 times
[2024-06-14 13:28:18,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:18,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341733948]
[2024-06-14 13:28:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:18,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 13:28:18,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:18,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341733948]
[2024-06-14 13:28:18,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341733948] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:18,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:18,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:18,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123655573]
[2024-06-14 13:28:18,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:18,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:18,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:18,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:18,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:19,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:19,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 300 transitions, 5500 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:19,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:19,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:19,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:20,297 INFO L124 PetriNetUnfolderBase]: 4633/7296 cut-off events.
[2024-06-14 13:28:20,297 INFO L125 PetriNetUnfolderBase]: For 204367/204375 co-relation queries the response was YES.
[2024-06-14 13:28:20,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53120 conditions, 7296 events. 4633/7296 cut-off events. For 204367/204375 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 45695 event pairs, 1709 based on Foata normal form. 17/7312 useless extension candidates. Maximal degree in co-relation 53031. Up to 6995 conditions per place.
[2024-06-14 13:28:20,361 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 307 selfloop transitions, 29 changer transitions 0/339 dead transitions.
[2024-06-14 13:28:20,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 339 transitions, 6505 flow
[2024-06-14 13:28:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:28:20,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:28:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 139 transitions.
[2024-06-14 13:28:20,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.434375
[2024-06-14 13:28:20,365 INFO L175 Difference]: Start difference. First operand has 174 places, 300 transitions, 5500 flow. Second operand 8 states and 139 transitions.
[2024-06-14 13:28:20,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 339 transitions, 6505 flow
[2024-06-14 13:28:20,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 339 transitions, 6220 flow, removed 58 selfloop flow, removed 6 redundant places.
[2024-06-14 13:28:20,916 INFO L231 Difference]: Finished difference. Result has 177 places, 311 transitions, 5446 flow
[2024-06-14 13:28:20,916 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5215, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5446, PETRI_PLACES=177, PETRI_TRANSITIONS=311}
[2024-06-14 13:28:20,916 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 136 predicate places.
[2024-06-14 13:28:20,917 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 311 transitions, 5446 flow
[2024-06-14 13:28:20,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:20,917 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:20,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:20,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2024-06-14 13:28:20,918 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:20,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:20,919 INFO L85 PathProgramCache]: Analyzing trace with hash 2089766094, now seen corresponding path program 2 times
[2024-06-14 13:28:20,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:20,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852469557]
[2024-06-14 13:28:20,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:20,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:21,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 13:28:21,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:21,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852469557]
[2024-06-14 13:28:21,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852469557] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:21,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:21,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:28:21,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522649109]
[2024-06-14 13:28:21,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:21,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:28:21,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:21,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:28:21,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:28:21,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:21,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 311 transitions, 5446 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 13:28:21,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:21,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:21,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:23,133 INFO L124 PetriNetUnfolderBase]: 4613/7253 cut-off events.
[2024-06-14 13:28:23,134 INFO L125 PetriNetUnfolderBase]: For 199605/199611 co-relation queries the response was YES.
[2024-06-14 13:28:23,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51888 conditions, 7253 events. 4613/7253 cut-off events. For 199605/199611 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 44976 event pairs, 1980 based on Foata normal form. 16/7268 useless extension candidates. Maximal degree in co-relation 51797. Up to 6995 conditions per place.
[2024-06-14 13:28:23,219 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 319 selfloop transitions, 17 changer transitions 0/339 dead transitions.
[2024-06-14 13:28:23,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 339 transitions, 6210 flow
[2024-06-14 13:28:23,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:28:23,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:28:23,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 134 transitions.
[2024-06-14 13:28:23,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41875
[2024-06-14 13:28:23,220 INFO L175 Difference]: Start difference. First operand has 177 places, 311 transitions, 5446 flow. Second operand 8 states and 134 transitions.
[2024-06-14 13:28:23,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 339 transitions, 6210 flow
[2024-06-14 13:28:23,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 339 transitions, 6096 flow, removed 37 selfloop flow, removed 4 redundant places.
[2024-06-14 13:28:23,805 INFO L231 Difference]: Finished difference. Result has 181 places, 311 transitions, 5372 flow
[2024-06-14 13:28:23,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5332, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5372, PETRI_PLACES=181, PETRI_TRANSITIONS=311}
[2024-06-14 13:28:23,806 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 140 predicate places.
[2024-06-14 13:28:23,806 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 311 transitions, 5372 flow
[2024-06-14 13:28:23,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 13:28:23,806 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:23,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:23,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2024-06-14 13:28:23,806 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:23,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:23,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1848972160, now seen corresponding path program 3 times
[2024-06-14 13:28:23,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:23,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119132060]
[2024-06-14 13:28:23,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:23,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:24,745 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 13:28:24,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:24,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119132060]
[2024-06-14 13:28:24,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119132060] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:24,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:24,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:28:24,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730543647]
[2024-06-14 13:28:24,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:24,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:28:24,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:24,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:28:24,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:28:24,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:24,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 311 transitions, 5372 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 13:28:24,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:24,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:24,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:26,108 INFO L124 PetriNetUnfolderBase]: 4898/7751 cut-off events.
[2024-06-14 13:28:26,108 INFO L125 PetriNetUnfolderBase]: For 208175/208186 co-relation queries the response was YES.
[2024-06-14 13:28:26,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54070 conditions, 7751 events. 4898/7751 cut-off events. For 208175/208186 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 49619 event pairs, 1549 based on Foata normal form. 34/7784 useless extension candidates. Maximal degree in co-relation 53978. Up to 6761 conditions per place.
[2024-06-14 13:28:26,192 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 265 selfloop transitions, 90 changer transitions 0/358 dead transitions.
[2024-06-14 13:28:26,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 358 transitions, 6502 flow
[2024-06-14 13:28:26,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:28:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:28:26,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 145 transitions.
[2024-06-14 13:28:26,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.453125
[2024-06-14 13:28:26,194 INFO L175 Difference]: Start difference. First operand has 181 places, 311 transitions, 5372 flow. Second operand 8 states and 145 transitions.
[2024-06-14 13:28:26,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 358 transitions, 6502 flow
[2024-06-14 13:28:26,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 358 transitions, 6305 flow, removed 15 selfloop flow, removed 8 redundant places.
[2024-06-14 13:28:26,782 INFO L231 Difference]: Finished difference. Result has 181 places, 320 transitions, 5631 flow
[2024-06-14 13:28:26,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5184, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5631, PETRI_PLACES=181, PETRI_TRANSITIONS=320}
[2024-06-14 13:28:26,783 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 140 predicate places.
[2024-06-14 13:28:26,783 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 320 transitions, 5631 flow
[2024-06-14 13:28:26,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 13:28:26,784 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:26,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:26,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2024-06-14 13:28:26,791 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:26,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:26,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1848977895, now seen corresponding path program 1 times
[2024-06-14 13:28:26,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:26,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285581345]
[2024-06-14 13:28:26,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:26,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:27,714 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 13:28:27,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:27,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285581345]
[2024-06-14 13:28:27,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285581345] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:27,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:27,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:28:27,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097739259]
[2024-06-14 13:28:27,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:27,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:28:27,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:27,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:28:27,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:28:27,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:27,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 320 transitions, 5631 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 13:28:27,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:27,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:27,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:29,151 INFO L124 PetriNetUnfolderBase]: 4975/7892 cut-off events.
[2024-06-14 13:28:29,151 INFO L125 PetriNetUnfolderBase]: For 218326/218346 co-relation queries the response was YES.
[2024-06-14 13:28:29,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54222 conditions, 7892 events. 4975/7892 cut-off events. For 218326/218346 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 50675 event pairs, 1356 based on Foata normal form. 48/7939 useless extension candidates. Maximal degree in co-relation 54131. Up to 6506 conditions per place.
[2024-06-14 13:28:29,221 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 247 selfloop transitions, 117 changer transitions 0/367 dead transitions.
[2024-06-14 13:28:29,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 367 transitions, 6709 flow
[2024-06-14 13:28:29,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:28:29,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:28:29,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions.
[2024-06-14 13:28:29,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.478125
[2024-06-14 13:28:29,223 INFO L175 Difference]: Start difference. First operand has 181 places, 320 transitions, 5631 flow. Second operand 8 states and 153 transitions.
[2024-06-14 13:28:29,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 367 transitions, 6709 flow
[2024-06-14 13:28:29,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 367 transitions, 6448 flow, removed 46 selfloop flow, removed 6 redundant places.
[2024-06-14 13:28:29,825 INFO L231 Difference]: Finished difference. Result has 183 places, 323 transitions, 5772 flow
[2024-06-14 13:28:29,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5370, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5772, PETRI_PLACES=183, PETRI_TRANSITIONS=323}
[2024-06-14 13:28:29,825 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 142 predicate places.
[2024-06-14 13:28:29,825 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 323 transitions, 5772 flow
[2024-06-14 13:28:29,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 13:28:29,826 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:29,826 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:29,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2024-06-14 13:28:29,826 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:29,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:29,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1848770350, now seen corresponding path program 4 times
[2024-06-14 13:28:29,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:29,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854387732]
[2024-06-14 13:28:29,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:29,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:30,724 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 13:28:30,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:30,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854387732]
[2024-06-14 13:28:30,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854387732] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:30,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:30,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:28:30,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659106220]
[2024-06-14 13:28:30,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:30,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:28:30,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:30,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:28:30,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:28:30,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:30,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 323 transitions, 5772 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 13:28:30,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:30,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:30,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:32,076 INFO L124 PetriNetUnfolderBase]: 4929/7827 cut-off events.
[2024-06-14 13:28:32,076 INFO L125 PetriNetUnfolderBase]: For 209446/209458 co-relation queries the response was YES.
[2024-06-14 13:28:32,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53125 conditions, 7827 events. 4929/7827 cut-off events. For 209446/209458 co-relation queries the response was YES. Maximal size of possible extension queue 511. Compared 50526 event pairs, 1512 based on Foata normal form. 34/7860 useless extension candidates. Maximal degree in co-relation 53033. Up to 6405 conditions per place.
[2024-06-14 13:28:32,153 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 236 selfloop transitions, 114 changer transitions 0/353 dead transitions.
[2024-06-14 13:28:32,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 353 transitions, 6520 flow
[2024-06-14 13:28:32,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:28:32,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:28:32,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 140 transitions.
[2024-06-14 13:28:32,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375
[2024-06-14 13:28:32,155 INFO L175 Difference]: Start difference. First operand has 183 places, 323 transitions, 5772 flow. Second operand 8 states and 140 transitions.
[2024-06-14 13:28:32,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 353 transitions, 6520 flow
[2024-06-14 13:28:32,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 353 transitions, 6217 flow, removed 52 selfloop flow, removed 6 redundant places.
[2024-06-14 13:28:32,673 INFO L231 Difference]: Finished difference. Result has 184 places, 322 transitions, 5646 flow
[2024-06-14 13:28:32,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5405, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5646, PETRI_PLACES=184, PETRI_TRANSITIONS=322}
[2024-06-14 13:28:32,674 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 143 predicate places.
[2024-06-14 13:28:32,674 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 322 transitions, 5646 flow
[2024-06-14 13:28:32,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 13:28:32,674 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:32,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:32,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2024-06-14 13:28:32,675 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:32,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:32,675 INFO L85 PathProgramCache]: Analyzing trace with hash 809518370, now seen corresponding path program 1 times
[2024-06-14 13:28:32,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:32,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622939160]
[2024-06-14 13:28:32,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:32,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:33,306 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 13:28:33,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:33,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622939160]
[2024-06-14 13:28:33,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622939160] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:33,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:33,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:33,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022641906]
[2024-06-14 13:28:33,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:33,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:33,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:33,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:33,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:33,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:33,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 322 transitions, 5646 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:33,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:33,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:33,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:34,681 INFO L124 PetriNetUnfolderBase]: 4923/7806 cut-off events.
[2024-06-14 13:28:34,681 INFO L125 PetriNetUnfolderBase]: For 190380/190388 co-relation queries the response was YES.
[2024-06-14 13:28:34,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52544 conditions, 7806 events. 4923/7806 cut-off events. For 190380/190388 co-relation queries the response was YES. Maximal size of possible extension queue 508. Compared 50171 event pairs, 1906 based on Foata normal form. 10/7815 useless extension candidates. Maximal degree in co-relation 52451. Up to 7625 conditions per place.
[2024-06-14 13:28:34,766 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 316 selfloop transitions, 23 changer transitions 0/342 dead transitions.
[2024-06-14 13:28:34,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 342 transitions, 6444 flow
[2024-06-14 13:28:34,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 13:28:34,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 13:28:34,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions.
[2024-06-14 13:28:34,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.465
[2024-06-14 13:28:34,768 INFO L175 Difference]: Start difference. First operand has 184 places, 322 transitions, 5646 flow. Second operand 5 states and 93 transitions.
[2024-06-14 13:28:34,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 342 transitions, 6444 flow
[2024-06-14 13:28:35,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 342 transitions, 6150 flow, removed 35 selfloop flow, removed 7 redundant places.
[2024-06-14 13:28:35,223 INFO L231 Difference]: Finished difference. Result has 182 places, 325 transitions, 5465 flow
[2024-06-14 13:28:35,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5352, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5465, PETRI_PLACES=182, PETRI_TRANSITIONS=325}
[2024-06-14 13:28:35,225 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 141 predicate places.
[2024-06-14 13:28:35,225 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 325 transitions, 5465 flow
[2024-06-14 13:28:35,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:35,225 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:35,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:35,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2024-06-14 13:28:35,226 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:35,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:35,226 INFO L85 PathProgramCache]: Analyzing trace with hash -719434739, now seen corresponding path program 3 times
[2024-06-14 13:28:35,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:35,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133028576]
[2024-06-14 13:28:35,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:35,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:35,793 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 13:28:35,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:35,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133028576]
[2024-06-14 13:28:35,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133028576] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:35,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:35,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:35,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130145935]
[2024-06-14 13:28:35,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:35,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:35,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:35,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:35,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:35,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:35,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 325 transitions, 5465 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:35,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:35,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:35,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:37,141 INFO L124 PetriNetUnfolderBase]: 5052/7980 cut-off events.
[2024-06-14 13:28:37,141 INFO L125 PetriNetUnfolderBase]: For 191736/191744 co-relation queries the response was YES.
[2024-06-14 13:28:37,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53265 conditions, 7980 events. 5052/7980 cut-off events. For 191736/191744 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 51267 event pairs, 1793 based on Foata normal form. 17/7996 useless extension candidates. Maximal degree in co-relation 53172. Up to 7425 conditions per place.
[2024-06-14 13:28:37,233 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 290 selfloop transitions, 74 changer transitions 0/367 dead transitions.
[2024-06-14 13:28:37,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 367 transitions, 6552 flow
[2024-06-14 13:28:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:28:37,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:28:37,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions.
[2024-06-14 13:28:37,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4785714285714286
[2024-06-14 13:28:37,235 INFO L175 Difference]: Start difference. First operand has 182 places, 325 transitions, 5465 flow. Second operand 7 states and 134 transitions.
[2024-06-14 13:28:37,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 367 transitions, 6552 flow
[2024-06-14 13:28:37,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 367 transitions, 6501 flow, removed 11 selfloop flow, removed 3 redundant places.
[2024-06-14 13:28:37,765 INFO L231 Difference]: Finished difference. Result has 188 places, 334 transitions, 5800 flow
[2024-06-14 13:28:37,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5414, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5800, PETRI_PLACES=188, PETRI_TRANSITIONS=334}
[2024-06-14 13:28:37,766 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 147 predicate places.
[2024-06-14 13:28:37,766 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 334 transitions, 5800 flow
[2024-06-14 13:28:37,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:37,766 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:37,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:37,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2024-06-14 13:28:37,767 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:37,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:37,767 INFO L85 PathProgramCache]: Analyzing trace with hash -719034560, now seen corresponding path program 1 times
[2024-06-14 13:28:37,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:37,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175525822]
[2024-06-14 13:28:37,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:37,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:38,705 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 13:28:38,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:38,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175525822]
[2024-06-14 13:28:38,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175525822] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:38,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:38,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:28:38,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716969942]
[2024-06-14 13:28:38,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:38,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:28:38,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:38,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:28:38,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:28:38,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:38,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 334 transitions, 5800 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:28:38,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:38,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:38,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:40,047 INFO L124 PetriNetUnfolderBase]: 5047/7980 cut-off events.
[2024-06-14 13:28:40,048 INFO L125 PetriNetUnfolderBase]: For 201651/201651 co-relation queries the response was YES.
[2024-06-14 13:28:40,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54223 conditions, 7980 events. 5047/7980 cut-off events. For 201651/201651 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 51107 event pairs, 2276 based on Foata normal form. 2/7981 useless extension candidates. Maximal degree in co-relation 54127. Up to 7844 conditions per place.
[2024-06-14 13:28:40,140 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 330 selfloop transitions, 12 changer transitions 0/345 dead transitions.
[2024-06-14 13:28:40,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 345 transitions, 6538 flow
[2024-06-14 13:28:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 13:28:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 13:28:40,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 84 transitions.
[2024-06-14 13:28:40,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42
[2024-06-14 13:28:40,141 INFO L175 Difference]: Start difference. First operand has 188 places, 334 transitions, 5800 flow. Second operand 5 states and 84 transitions.
[2024-06-14 13:28:40,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 345 transitions, 6538 flow
[2024-06-14 13:28:40,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 345 transitions, 6428 flow, removed 23 selfloop flow, removed 3 redundant places.
[2024-06-14 13:28:40,640 INFO L231 Difference]: Finished difference. Result has 190 places, 336 transitions, 5751 flow
[2024-06-14 13:28:40,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5690, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5751, PETRI_PLACES=190, PETRI_TRANSITIONS=336}
[2024-06-14 13:28:40,641 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 149 predicate places.
[2024-06-14 13:28:40,641 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 336 transitions, 5751 flow
[2024-06-14 13:28:40,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:28:40,641 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:40,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:40,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2024-06-14 13:28:40,642 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:40,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:40,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1457414016, now seen corresponding path program 1 times
[2024-06-14 13:28:40,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:40,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803259931]
[2024-06-14 13:28:40,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:40,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:41,476 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 13:28:41,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:41,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803259931]
[2024-06-14 13:28:41,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803259931] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:41,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:41,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:28:41,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017042711]
[2024-06-14 13:28:41,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:41,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:28:41,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:41,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:28:41,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:28:41,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:41,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 336 transitions, 5751 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:28:41,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:41,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:41,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:42,986 INFO L124 PetriNetUnfolderBase]: 5156/8133 cut-off events.
[2024-06-14 13:28:42,986 INFO L125 PetriNetUnfolderBase]: For 214233/214243 co-relation queries the response was YES.
[2024-06-14 13:28:43,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54960 conditions, 8133 events. 5156/8133 cut-off events. For 214233/214243 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 52215 event pairs, 1721 based on Foata normal form. 19/8151 useless extension candidates. Maximal degree in co-relation 54863. Up to 6925 conditions per place.
[2024-06-14 13:28:43,075 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 278 selfloop transitions, 112 changer transitions 0/393 dead transitions.
[2024-06-14 13:28:43,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 393 transitions, 7086 flow
[2024-06-14 13:28:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:28:43,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:28:43,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 176 transitions.
[2024-06-14 13:28:43,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889
[2024-06-14 13:28:43,077 INFO L175 Difference]: Start difference. First operand has 190 places, 336 transitions, 5751 flow. Second operand 9 states and 176 transitions.
[2024-06-14 13:28:43,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 393 transitions, 7086 flow
[2024-06-14 13:28:43,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 393 transitions, 7041 flow, removed 12 selfloop flow, removed 3 redundant places.
[2024-06-14 13:28:43,504 INFO L231 Difference]: Finished difference. Result has 197 places, 346 transitions, 6105 flow
[2024-06-14 13:28:43,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5706, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6105, PETRI_PLACES=197, PETRI_TRANSITIONS=346}
[2024-06-14 13:28:43,505 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 156 predicate places.
[2024-06-14 13:28:43,505 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 346 transitions, 6105 flow
[2024-06-14 13:28:43,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:28:43,505 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:43,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:43,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2024-06-14 13:28:43,506 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:43,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:43,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2126461260, now seen corresponding path program 1 times
[2024-06-14 13:28:43,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:43,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799533966]
[2024-06-14 13:28:43,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:43,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:44,079 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 13:28:44,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:44,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799533966]
[2024-06-14 13:28:44,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799533966] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:44,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:44,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:44,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485849407]
[2024-06-14 13:28:44,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:44,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:44,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:44,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:44,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:44,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:44,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 346 transitions, 6105 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:44,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:44,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:44,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:45,519 INFO L124 PetriNetUnfolderBase]: 5264/8292 cut-off events.
[2024-06-14 13:28:45,519 INFO L125 PetriNetUnfolderBase]: For 244409/244438 co-relation queries the response was YES.
[2024-06-14 13:28:45,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58721 conditions, 8292 events. 5264/8292 cut-off events. For 244409/244438 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 53311 event pairs, 1810 based on Foata normal form. 38/8329 useless extension candidates. Maximal degree in co-relation 58622. Up to 7246 conditions per place.
[2024-06-14 13:28:45,610 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 292 selfloop transitions, 91 changer transitions 0/386 dead transitions.
[2024-06-14 13:28:45,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 386 transitions, 7359 flow
[2024-06-14 13:28:45,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:28:45,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:28:45,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 133 transitions.
[2024-06-14 13:28:45,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.475
[2024-06-14 13:28:45,611 INFO L175 Difference]: Start difference. First operand has 197 places, 346 transitions, 6105 flow. Second operand 7 states and 133 transitions.
[2024-06-14 13:28:45,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 386 transitions, 7359 flow
[2024-06-14 13:28:46,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 386 transitions, 7234 flow, removed 30 selfloop flow, removed 4 redundant places.
[2024-06-14 13:28:46,140 INFO L231 Difference]: Finished difference. Result has 201 places, 355 transitions, 6401 flow
[2024-06-14 13:28:46,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5982, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6401, PETRI_PLACES=201, PETRI_TRANSITIONS=355}
[2024-06-14 13:28:46,140 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 160 predicate places.
[2024-06-14 13:28:46,140 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 355 transitions, 6401 flow
[2024-06-14 13:28:46,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:46,141 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:46,141 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:46,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2024-06-14 13:28:46,141 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:46,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:46,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1465988864, now seen corresponding path program 2 times
[2024-06-14 13:28:46,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:46,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807414762]
[2024-06-14 13:28:46,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:46,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:46,765 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 13:28:46,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:46,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807414762]
[2024-06-14 13:28:46,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807414762] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:46,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:46,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:46,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094586275]
[2024-06-14 13:28:46,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:46,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:46,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:46,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:46,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:46,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:46,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 355 transitions, 6401 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:46,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:46,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:46,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:48,274 INFO L124 PetriNetUnfolderBase]: 5384/8469 cut-off events.
[2024-06-14 13:28:48,274 INFO L125 PetriNetUnfolderBase]: For 256203/256205 co-relation queries the response was YES.
[2024-06-14 13:28:48,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60712 conditions, 8469 events. 5384/8469 cut-off events. For 256203/256205 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 54369 event pairs, 2246 based on Foata normal form. 14/8482 useless extension candidates. Maximal degree in co-relation 60610. Up to 8195 conditions per place.
[2024-06-14 13:28:48,364 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 360 selfloop transitions, 28 changer transitions 0/391 dead transitions.
[2024-06-14 13:28:48,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 391 transitions, 7471 flow
[2024-06-14 13:28:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:28:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:28:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions.
[2024-06-14 13:28:48,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4
[2024-06-14 13:28:48,365 INFO L175 Difference]: Start difference. First operand has 201 places, 355 transitions, 6401 flow. Second operand 9 states and 144 transitions.
[2024-06-14 13:28:48,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 391 transitions, 7471 flow
[2024-06-14 13:28:48,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 391 transitions, 7328 flow, removed 30 selfloop flow, removed 3 redundant places.
[2024-06-14 13:28:48,983 INFO L231 Difference]: Finished difference. Result has 210 places, 367 transitions, 6545 flow
[2024-06-14 13:28:48,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=6265, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6545, PETRI_PLACES=210, PETRI_TRANSITIONS=367}
[2024-06-14 13:28:48,984 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 169 predicate places.
[2024-06-14 13:28:48,984 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 367 transitions, 6545 flow
[2024-06-14 13:28:48,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:48,984 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:48,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:48,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2024-06-14 13:28:48,985 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:48,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:48,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1465984896, now seen corresponding path program 2 times
[2024-06-14 13:28:48,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:48,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960785620]
[2024-06-14 13:28:48,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:48,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:49,826 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 13:28:49,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:49,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960785620]
[2024-06-14 13:28:49,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960785620] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:49,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:49,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:28:49,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067125332]
[2024-06-14 13:28:49,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:49,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:28:49,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:49,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:28:49,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:28:49,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:49,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 367 transitions, 6545 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:28:49,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:49,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:49,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:51,457 INFO L124 PetriNetUnfolderBase]: 5441/8531 cut-off events.
[2024-06-14 13:28:51,457 INFO L125 PetriNetUnfolderBase]: For 260125/260133 co-relation queries the response was YES.
[2024-06-14 13:28:51,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60847 conditions, 8531 events. 5441/8531 cut-off events. For 260125/260133 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 54560 event pairs, 1972 based on Foata normal form. 17/8547 useless extension candidates. Maximal degree in co-relation 60741. Up to 8054 conditions per place.
[2024-06-14 13:28:51,552 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 354 selfloop transitions, 46 changer transitions 0/403 dead transitions.
[2024-06-14 13:28:51,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 403 transitions, 7638 flow
[2024-06-14 13:28:51,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:28:51,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:28:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 154 transitions.
[2024-06-14 13:28:51,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42777777777777776
[2024-06-14 13:28:51,555 INFO L175 Difference]: Start difference. First operand has 210 places, 367 transitions, 6545 flow. Second operand 9 states and 154 transitions.
[2024-06-14 13:28:51,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 403 transitions, 7638 flow
[2024-06-14 13:28:52,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 403 transitions, 7576 flow, removed 16 selfloop flow, removed 4 redundant places.
[2024-06-14 13:28:52,261 INFO L231 Difference]: Finished difference. Result has 215 places, 372 transitions, 6653 flow
[2024-06-14 13:28:52,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=6483, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6653, PETRI_PLACES=215, PETRI_TRANSITIONS=372}
[2024-06-14 13:28:52,262 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 174 predicate places.
[2024-06-14 13:28:52,262 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 372 transitions, 6653 flow
[2024-06-14 13:28:52,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:28:52,262 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:52,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:52,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2024-06-14 13:28:52,262 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:52,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:52,263 INFO L85 PathProgramCache]: Analyzing trace with hash 449111854, now seen corresponding path program 3 times
[2024-06-14 13:28:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:52,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000626914]
[2024-06-14 13:28:52,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:52,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:52,774 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 13:28:52,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:52,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000626914]
[2024-06-14 13:28:52,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000626914] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:52,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:52,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:52,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557395626]
[2024-06-14 13:28:52,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:52,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:52,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:52,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:52,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:52,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:52,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 372 transitions, 6653 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:52,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:52,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:52,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:54,404 INFO L124 PetriNetUnfolderBase]: 5471/8576 cut-off events.
[2024-06-14 13:28:54,404 INFO L125 PetriNetUnfolderBase]: For 269938/269938 co-relation queries the response was YES.
[2024-06-14 13:28:54,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61562 conditions, 8576 events. 5471/8576 cut-off events. For 269938/269938 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 54855 event pairs, 2397 based on Foata normal form. 6/8581 useless extension candidates. Maximal degree in co-relation 61456. Up to 8306 conditions per place.
[2024-06-14 13:28:54,498 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 363 selfloop transitions, 33 changer transitions 0/399 dead transitions.
[2024-06-14 13:28:54,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 399 transitions, 7710 flow
[2024-06-14 13:28:54,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:28:54,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:28:54,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions.
[2024-06-14 13:28:54,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43214285714285716
[2024-06-14 13:28:54,499 INFO L175 Difference]: Start difference. First operand has 215 places, 372 transitions, 6653 flow. Second operand 7 states and 121 transitions.
[2024-06-14 13:28:54,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 399 transitions, 7710 flow
[2024-06-14 13:28:55,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 399 transitions, 7605 flow, removed 16 selfloop flow, removed 6 redundant places.
[2024-06-14 13:28:55,038 INFO L231 Difference]: Finished difference. Result has 216 places, 375 transitions, 6687 flow
[2024-06-14 13:28:55,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=6548, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6687, PETRI_PLACES=216, PETRI_TRANSITIONS=375}
[2024-06-14 13:28:55,039 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 175 predicate places.
[2024-06-14 13:28:55,039 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 375 transitions, 6687 flow
[2024-06-14 13:28:55,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:55,039 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:55,039 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:55,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45
[2024-06-14 13:28:55,039 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:55,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:55,040 INFO L85 PathProgramCache]: Analyzing trace with hash 747352856, now seen corresponding path program 4 times
[2024-06-14 13:28:55,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:55,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239612885]
[2024-06-14 13:28:55,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:55,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:55,508 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 13:28:55,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:55,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239612885]
[2024-06-14 13:28:55,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239612885] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:55,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:55,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:55,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045696964]
[2024-06-14 13:28:55,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:55,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:55,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:55,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:55,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:55,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:55,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 375 transitions, 6687 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:55,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:55,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:55,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:57,058 INFO L124 PetriNetUnfolderBase]: 5453/8550 cut-off events.
[2024-06-14 13:28:57,059 INFO L125 PetriNetUnfolderBase]: For 272017/272017 co-relation queries the response was YES.
[2024-06-14 13:28:57,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61062 conditions, 8550 events. 5453/8550 cut-off events. For 272017/272017 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 54638 event pairs, 2394 based on Foata normal form. 6/8555 useless extension candidates. Maximal degree in co-relation 60955. Up to 8387 conditions per place.
[2024-06-14 13:28:57,153 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 367 selfloop transitions, 20 changer transitions 0/390 dead transitions.
[2024-06-14 13:28:57,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 390 transitions, 7519 flow
[2024-06-14 13:28:57,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:28:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:28:57,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 113 transitions.
[2024-06-14 13:28:57,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4035714285714286
[2024-06-14 13:28:57,155 INFO L175 Difference]: Start difference. First operand has 216 places, 375 transitions, 6687 flow. Second operand 7 states and 113 transitions.
[2024-06-14 13:28:57,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 390 transitions, 7519 flow
[2024-06-14 13:28:57,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 390 transitions, 7177 flow, removed 26 selfloop flow, removed 8 redundant places.
[2024-06-14 13:28:57,762 INFO L231 Difference]: Finished difference. Result has 215 places, 375 transitions, 6391 flow
[2024-06-14 13:28:57,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=6345, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6391, PETRI_PLACES=215, PETRI_TRANSITIONS=375}
[2024-06-14 13:28:57,763 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 174 predicate places.
[2024-06-14 13:28:57,763 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 375 transitions, 6391 flow
[2024-06-14 13:28:57,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:57,763 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:28:57,764 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:28:57,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2024-06-14 13:28:57,764 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:28:57,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:28:57,764 INFO L85 PathProgramCache]: Analyzing trace with hash -827635410, now seen corresponding path program 5 times
[2024-06-14 13:28:57,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:28:57,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180472623]
[2024-06-14 13:28:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:28:57,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:28:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:28:58,281 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 13:28:58,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:28:58,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180472623]
[2024-06-14 13:28:58,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180472623] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:28:58,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:28:58,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:28:58,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462857126]
[2024-06-14 13:28:58,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:28:58,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:28:58,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:28:58,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:28:58,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:28:58,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:28:58,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 375 transitions, 6391 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:28:58,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:28:58,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:28:58,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:28:59,899 INFO L124 PetriNetUnfolderBase]: 5417/8512 cut-off events.
[2024-06-14 13:28:59,900 INFO L125 PetriNetUnfolderBase]: For 262327/262354 co-relation queries the response was YES.
[2024-06-14 13:28:59,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59536 conditions, 8512 events. 5417/8512 cut-off events. For 262327/262354 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 54620 event pairs, 1919 based on Foata normal form. 36/8547 useless extension candidates. Maximal degree in co-relation 59430. Up to 7919 conditions per place.
[2024-06-14 13:28:59,997 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 325 selfloop transitions, 77 changer transitions 0/405 dead transitions.
[2024-06-14 13:28:59,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 405 transitions, 7424 flow
[2024-06-14 13:28:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:28:59,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:28:59,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 131 transitions.
[2024-06-14 13:28:59,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46785714285714286
[2024-06-14 13:28:59,999 INFO L175 Difference]: Start difference. First operand has 215 places, 375 transitions, 6391 flow. Second operand 7 states and 131 transitions.
[2024-06-14 13:28:59,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 405 transitions, 7424 flow
[2024-06-14 13:29:00,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 405 transitions, 7330 flow, removed 22 selfloop flow, removed 6 redundant places.
[2024-06-14 13:29:00,669 INFO L231 Difference]: Finished difference. Result has 216 places, 375 transitions, 6485 flow
[2024-06-14 13:29:00,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=6297, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6485, PETRI_PLACES=216, PETRI_TRANSITIONS=375}
[2024-06-14 13:29:00,671 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 175 predicate places.
[2024-06-14 13:29:00,671 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 375 transitions, 6485 flow
[2024-06-14 13:29:00,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:29:00,671 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:00,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:00,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47
[2024-06-14 13:29:00,671 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:00,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:00,672 INFO L85 PathProgramCache]: Analyzing trace with hash -821921490, now seen corresponding path program 6 times
[2024-06-14 13:29:00,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:00,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601908296]
[2024-06-14 13:29:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:00,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:01,233 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 13:29:01,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:01,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601908296]
[2024-06-14 13:29:01,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601908296] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:01,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:01,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:29:01,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381620934]
[2024-06-14 13:29:01,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:01,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:29:01,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:01,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:29:01,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:29:01,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:01,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 375 transitions, 6485 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:29:01,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:01,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:01,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:02,689 INFO L124 PetriNetUnfolderBase]: 5387/8462 cut-off events.
[2024-06-14 13:29:02,690 INFO L125 PetriNetUnfolderBase]: For 261764/261764 co-relation queries the response was YES.
[2024-06-14 13:29:02,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59501 conditions, 8462 events. 5387/8462 cut-off events. For 261764/261764 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 54140 event pairs, 2360 based on Foata normal form. 6/8467 useless extension candidates. Maximal degree in co-relation 59395. Up to 8273 conditions per place.
[2024-06-14 13:29:02,943 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 366 selfloop transitions, 25 changer transitions 0/394 dead transitions.
[2024-06-14 13:29:02,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 394 transitions, 7360 flow
[2024-06-14 13:29:02,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:29:02,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:29:02,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 105 transitions.
[2024-06-14 13:29:02,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375
[2024-06-14 13:29:02,945 INFO L175 Difference]: Start difference. First operand has 216 places, 375 transitions, 6485 flow. Second operand 6 states and 105 transitions.
[2024-06-14 13:29:02,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 394 transitions, 7360 flow
[2024-06-14 13:29:03,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 394 transitions, 7208 flow, removed 26 selfloop flow, removed 5 redundant places.
[2024-06-14 13:29:03,614 INFO L231 Difference]: Finished difference. Result has 217 places, 375 transitions, 6398 flow
[2024-06-14 13:29:03,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=6333, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6398, PETRI_PLACES=217, PETRI_TRANSITIONS=375}
[2024-06-14 13:29:03,614 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 176 predicate places.
[2024-06-14 13:29:03,614 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 375 transitions, 6398 flow
[2024-06-14 13:29:03,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:29:03,615 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:03,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:03,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48
[2024-06-14 13:29:03,615 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:03,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash -107292998, now seen corresponding path program 3 times
[2024-06-14 13:29:03,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:03,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124056793]
[2024-06-14 13:29:03,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:03,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:04,313 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 13:29:04,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:04,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124056793]
[2024-06-14 13:29:04,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124056793] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:04,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:04,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:29:04,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781918067]
[2024-06-14 13:29:04,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:04,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:29:04,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:04,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:29:04,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:29:04,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:04,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 375 transitions, 6398 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:04,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:04,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:04,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:05,852 INFO L124 PetriNetUnfolderBase]: 5408/8492 cut-off events.
[2024-06-14 13:29:05,853 INFO L125 PetriNetUnfolderBase]: For 255177/255185 co-relation queries the response was YES.
[2024-06-14 13:29:05,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58972 conditions, 8492 events. 5408/8492 cut-off events. For 255177/255185 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 54462 event pairs, 1826 based on Foata normal form. 17/8508 useless extension candidates. Maximal degree in co-relation 58866. Up to 7787 conditions per place.
[2024-06-14 13:29:05,950 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 314 selfloop transitions, 103 changer transitions 0/420 dead transitions.
[2024-06-14 13:29:05,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 420 transitions, 7477 flow
[2024-06-14 13:29:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:29:05,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:29:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 156 transitions.
[2024-06-14 13:29:05,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4875
[2024-06-14 13:29:05,952 INFO L175 Difference]: Start difference. First operand has 217 places, 375 transitions, 6398 flow. Second operand 8 states and 156 transitions.
[2024-06-14 13:29:05,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 420 transitions, 7477 flow
[2024-06-14 13:29:06,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 420 transitions, 7324 flow, removed 0 selfloop flow, removed 7 redundant places.
[2024-06-14 13:29:06,634 INFO L231 Difference]: Finished difference. Result has 218 places, 379 transitions, 6541 flow
[2024-06-14 13:29:06,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=6245, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6541, PETRI_PLACES=218, PETRI_TRANSITIONS=379}
[2024-06-14 13:29:06,648 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 177 predicate places.
[2024-06-14 13:29:06,648 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 379 transitions, 6541 flow
[2024-06-14 13:29:06,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:06,648 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:06,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:06,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2024-06-14 13:29:06,649 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:06,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:06,649 INFO L85 PathProgramCache]: Analyzing trace with hash -815664388, now seen corresponding path program 1 times
[2024-06-14 13:29:06,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:06,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383494723]
[2024-06-14 13:29:06,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:06,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:07,350 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 13:29:07,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:07,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383494723]
[2024-06-14 13:29:07,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383494723] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:07,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:07,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:29:07,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093061480]
[2024-06-14 13:29:07,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:07,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:29:07,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:07,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:29:07,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:29:07,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:07,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 379 transitions, 6541 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:07,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:07,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:07,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:08,944 INFO L124 PetriNetUnfolderBase]: 5494/8603 cut-off events.
[2024-06-14 13:29:08,944 INFO L125 PetriNetUnfolderBase]: For 266004/266012 co-relation queries the response was YES.
[2024-06-14 13:29:09,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60843 conditions, 8603 events. 5494/8603 cut-off events. For 266004/266012 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 55042 event pairs, 1852 based on Foata normal form. 14/8616 useless extension candidates. Maximal degree in co-relation 60736. Up to 7941 conditions per place.
[2024-06-14 13:29:09,046 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 330 selfloop transitions, 92 changer transitions 0/425 dead transitions.
[2024-06-14 13:29:09,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 425 transitions, 7810 flow
[2024-06-14 13:29:09,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:29:09,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:29:09,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions.
[2024-06-14 13:29:09,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4928571428571429
[2024-06-14 13:29:09,048 INFO L175 Difference]: Start difference. First operand has 218 places, 379 transitions, 6541 flow. Second operand 7 states and 138 transitions.
[2024-06-14 13:29:09,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 425 transitions, 7810 flow
[2024-06-14 13:29:09,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 425 transitions, 7604 flow, removed 16 selfloop flow, removed 6 redundant places.
[2024-06-14 13:29:09,834 INFO L231 Difference]: Finished difference. Result has 221 places, 390 transitions, 6813 flow
[2024-06-14 13:29:09,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=6335, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6813, PETRI_PLACES=221, PETRI_TRANSITIONS=390}
[2024-06-14 13:29:09,835 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 180 predicate places.
[2024-06-14 13:29:09,835 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 390 transitions, 6813 flow
[2024-06-14 13:29:09,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:09,835 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:09,835 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:09,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50
[2024-06-14 13:29:09,835 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:09,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:09,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1355535924, now seen corresponding path program 7 times
[2024-06-14 13:29:09,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:09,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368711554]
[2024-06-14 13:29:09,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:09,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:10,357 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 13:29:10,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:10,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368711554]
[2024-06-14 13:29:10,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368711554] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:10,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:10,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 13:29:10,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77126920]
[2024-06-14 13:29:10,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:10,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 13:29:10,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:10,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 13:29:10,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-06-14 13:29:10,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:10,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 390 transitions, 6813 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:29:10,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:10,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:10,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:12,025 INFO L124 PetriNetUnfolderBase]: 5554/8703 cut-off events.
[2024-06-14 13:29:12,025 INFO L125 PetriNetUnfolderBase]: For 281527/281527 co-relation queries the response was YES.
[2024-06-14 13:29:12,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62440 conditions, 8703 events. 5554/8703 cut-off events. For 281527/281527 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 55853 event pairs, 2169 based on Foata normal form. 12/8714 useless extension candidates. Maximal degree in co-relation 62330. Up to 8328 conditions per place.
[2024-06-14 13:29:12,135 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 388 selfloop transitions, 46 changer transitions 0/437 dead transitions.
[2024-06-14 13:29:12,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 437 transitions, 8069 flow
[2024-06-14 13:29:12,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:29:12,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:29:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 151 transitions.
[2024-06-14 13:29:12,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41944444444444445
[2024-06-14 13:29:12,137 INFO L175 Difference]: Start difference. First operand has 221 places, 390 transitions, 6813 flow. Second operand 9 states and 151 transitions.
[2024-06-14 13:29:12,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 437 transitions, 8069 flow
[2024-06-14 13:29:12,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 437 transitions, 7978 flow, removed 40 selfloop flow, removed 2 redundant places.
[2024-06-14 13:29:12,956 INFO L231 Difference]: Finished difference. Result has 231 places, 410 transitions, 7167 flow
[2024-06-14 13:29:12,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=6722, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7167, PETRI_PLACES=231, PETRI_TRANSITIONS=410}
[2024-06-14 13:29:12,958 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 190 predicate places.
[2024-06-14 13:29:12,958 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 410 transitions, 7167 flow
[2024-06-14 13:29:12,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 13:29:12,958 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:12,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:12,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51
[2024-06-14 13:29:12,958 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:12,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:12,959 INFO L85 PathProgramCache]: Analyzing trace with hash 744503832, now seen corresponding path program 1 times
[2024-06-14 13:29:12,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:12,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034232204]
[2024-06-14 13:29:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:12,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:13,781 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 13:29:13,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:13,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034232204]
[2024-06-14 13:29:13,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034232204] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:13,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:13,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:29:13,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817128771]
[2024-06-14 13:29:13,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:13,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:29:13,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:13,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:29:13,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:29:13,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:13,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 410 transitions, 7167 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:13,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:13,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:13,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:15,529 INFO L124 PetriNetUnfolderBase]: 5636/8820 cut-off events.
[2024-06-14 13:29:15,529 INFO L125 PetriNetUnfolderBase]: For 290740/290740 co-relation queries the response was YES.
[2024-06-14 13:29:15,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63770 conditions, 8820 events. 5636/8820 cut-off events. For 290740/290740 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 56389 event pairs, 2354 based on Foata normal form. 10/8829 useless extension candidates. Maximal degree in co-relation 63655. Up to 8457 conditions per place.
[2024-06-14 13:29:15,646 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 414 selfloop transitions, 27 changer transitions 0/444 dead transitions.
[2024-06-14 13:29:15,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 444 transitions, 8347 flow
[2024-06-14 13:29:15,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:29:15,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:29:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 128 transitions.
[2024-06-14 13:29:15,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713
[2024-06-14 13:29:15,647 INFO L175 Difference]: Start difference. First operand has 231 places, 410 transitions, 7167 flow. Second operand 7 states and 128 transitions.
[2024-06-14 13:29:15,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 444 transitions, 8347 flow
[2024-06-14 13:29:16,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 444 transitions, 8218 flow, removed 6 selfloop flow, removed 7 redundant places.
[2024-06-14 13:29:16,408 INFO L231 Difference]: Finished difference. Result has 231 places, 412 transitions, 7126 flow
[2024-06-14 13:29:16,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=7038, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7126, PETRI_PLACES=231, PETRI_TRANSITIONS=412}
[2024-06-14 13:29:16,409 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 190 predicate places.
[2024-06-14 13:29:16,409 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 412 transitions, 7126 flow
[2024-06-14 13:29:16,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:16,409 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:16,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:16,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52
[2024-06-14 13:29:16,409 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:16,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:16,410 INFO L85 PathProgramCache]: Analyzing trace with hash 744564282, now seen corresponding path program 2 times
[2024-06-14 13:29:16,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:16,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560878309]
[2024-06-14 13:29:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:16,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:17,249 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 13:29:17,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:17,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560878309]
[2024-06-14 13:29:17,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560878309] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:17,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:17,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:29:17,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834916144]
[2024-06-14 13:29:17,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:17,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:29:17,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:17,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:29:17,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:29:17,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:17,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 412 transitions, 7126 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:17,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:17,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:17,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:19,029 INFO L124 PetriNetUnfolderBase]: 5688/8900 cut-off events.
[2024-06-14 13:29:19,029 INFO L125 PetriNetUnfolderBase]: For 302792/302792 co-relation queries the response was YES.
[2024-06-14 13:29:19,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64393 conditions, 8900 events. 5688/8900 cut-off events. For 302792/302792 co-relation queries the response was YES. Maximal size of possible extension queue 588. Compared 57172 event pairs, 2419 based on Foata normal form. 14/8913 useless extension candidates. Maximal degree in co-relation 64276. Up to 8638 conditions per place.
[2024-06-14 13:29:19,157 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 409 selfloop transitions, 26 changer transitions 0/438 dead transitions.
[2024-06-14 13:29:19,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 438 transitions, 8154 flow
[2024-06-14 13:29:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:29:19,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:29:19,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions.
[2024-06-14 13:29:19,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4392857142857143
[2024-06-14 13:29:19,163 INFO L175 Difference]: Start difference. First operand has 231 places, 412 transitions, 7126 flow. Second operand 7 states and 123 transitions.
[2024-06-14 13:29:19,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 438 transitions, 8154 flow
[2024-06-14 13:29:19,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 438 transitions, 8119 flow, removed 4 selfloop flow, removed 3 redundant places.
[2024-06-14 13:29:19,883 INFO L231 Difference]: Finished difference. Result has 235 places, 413 transitions, 7166 flow
[2024-06-14 13:29:19,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=7091, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7166, PETRI_PLACES=235, PETRI_TRANSITIONS=413}
[2024-06-14 13:29:19,884 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 194 predicate places.
[2024-06-14 13:29:19,884 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 413 transitions, 7166 flow
[2024-06-14 13:29:19,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:19,885 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:19,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:19,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2024-06-14 13:29:19,885 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:19,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:19,885 INFO L85 PathProgramCache]: Analyzing trace with hash -665914856, now seen corresponding path program 3 times
[2024-06-14 13:29:19,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:19,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006961825]
[2024-06-14 13:29:19,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:19,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:20,834 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 13:29:20,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:20,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006961825]
[2024-06-14 13:29:20,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006961825] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:20,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:20,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:29:20,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908909766]
[2024-06-14 13:29:20,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:20,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:29:20,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:20,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:29:20,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:29:20,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:20,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 413 transitions, 7166 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:20,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:20,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:20,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:22,625 INFO L124 PetriNetUnfolderBase]: 5655/8853 cut-off events.
[2024-06-14 13:29:22,625 INFO L125 PetriNetUnfolderBase]: For 293988/293988 co-relation queries the response was YES.
[2024-06-14 13:29:22,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63714 conditions, 8853 events. 5655/8853 cut-off events. For 293988/293988 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 56752 event pairs, 2371 based on Foata normal form. 14/8866 useless extension candidates. Maximal degree in co-relation 63595. Up to 8597 conditions per place.
[2024-06-14 13:29:22,735 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 410 selfloop transitions, 24 changer transitions 0/437 dead transitions.
[2024-06-14 13:29:22,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 437 transitions, 8162 flow
[2024-06-14 13:29:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:29:22,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:29:22,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions.
[2024-06-14 13:29:22,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667
[2024-06-14 13:29:22,738 INFO L175 Difference]: Start difference. First operand has 235 places, 413 transitions, 7166 flow. Second operand 6 states and 112 transitions.
[2024-06-14 13:29:22,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 437 transitions, 8162 flow
[2024-06-14 13:29:23,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 437 transitions, 8107 flow, removed 3 selfloop flow, removed 5 redundant places.
[2024-06-14 13:29:23,558 INFO L231 Difference]: Finished difference. Result has 236 places, 413 transitions, 7168 flow
[2024-06-14 13:29:23,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=7111, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7168, PETRI_PLACES=236, PETRI_TRANSITIONS=413}
[2024-06-14 13:29:23,559 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 195 predicate places.
[2024-06-14 13:29:23,559 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 413 transitions, 7168 flow
[2024-06-14 13:29:23,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:23,559 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:23,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:23,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54
[2024-06-14 13:29:23,560 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:23,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:23,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1384992300, now seen corresponding path program 1 times
[2024-06-14 13:29:23,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:23,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820856328]
[2024-06-14 13:29:23,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:23,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:24,197 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 13:29:24,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:24,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820856328]
[2024-06-14 13:29:24,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820856328] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:24,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:24,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:29:24,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588510221]
[2024-06-14 13:29:24,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:24,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:29:24,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:24,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:29:24,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:29:24,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:24,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 413 transitions, 7168 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:24,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:24,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:24,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:26,017 INFO L124 PetriNetUnfolderBase]: 5637/8827 cut-off events.
[2024-06-14 13:29:26,018 INFO L125 PetriNetUnfolderBase]: For 281962/281973 co-relation queries the response was YES.
[2024-06-14 13:29:26,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63331 conditions, 8827 events. 5637/8827 cut-off events. For 281962/281973 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 56876 event pairs, 1806 based on Foata normal form. 16/8842 useless extension candidates. Maximal degree in co-relation 63211. Up to 7681 conditions per place.
[2024-06-14 13:29:26,124 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 327 selfloop transitions, 119 changer transitions 0/449 dead transitions.
[2024-06-14 13:29:26,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 449 transitions, 8355 flow
[2024-06-14 13:29:26,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:29:26,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:29:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions.
[2024-06-14 13:29:26,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46875
[2024-06-14 13:29:26,142 INFO L175 Difference]: Start difference. First operand has 236 places, 413 transitions, 7168 flow. Second operand 8 states and 150 transitions.
[2024-06-14 13:29:26,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 449 transitions, 8355 flow
[2024-06-14 13:29:26,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 449 transitions, 8282 flow, removed 11 selfloop flow, removed 5 redundant places.
[2024-06-14 13:29:26,839 INFO L231 Difference]: Finished difference. Result has 239 places, 413 transitions, 7339 flow
[2024-06-14 13:29:26,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=7095, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7339, PETRI_PLACES=239, PETRI_TRANSITIONS=413}
[2024-06-14 13:29:26,841 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 198 predicate places.
[2024-06-14 13:29:26,841 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 413 transitions, 7339 flow
[2024-06-14 13:29:26,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:26,841 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:26,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:26,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55
[2024-06-14 13:29:26,841 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:26,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:26,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1495790640, now seen corresponding path program 2 times
[2024-06-14 13:29:26,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:26,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607600472]
[2024-06-14 13:29:26,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:26,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:27,677 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 13:29:27,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:27,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607600472]
[2024-06-14 13:29:27,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607600472] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:27,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:27,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:29:27,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001635217]
[2024-06-14 13:29:27,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:27,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:29:27,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:29:27,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:29:27,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:27,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 413 transitions, 7339 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:27,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:27,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:27,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:29,554 INFO L124 PetriNetUnfolderBase]: 5667/8882 cut-off events.
[2024-06-14 13:29:29,554 INFO L125 PetriNetUnfolderBase]: For 294435/294464 co-relation queries the response was YES.
[2024-06-14 13:29:29,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64486 conditions, 8882 events. 5667/8882 cut-off events. For 294435/294464 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 57447 event pairs, 1866 based on Foata normal form. 32/8913 useless extension candidates. Maximal degree in co-relation 64365. Up to 7703 conditions per place.
[2024-06-14 13:29:29,659 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 329 selfloop transitions, 118 changer transitions 0/450 dead transitions.
[2024-06-14 13:29:29,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 450 transitions, 8588 flow
[2024-06-14 13:29:29,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:29:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:29:29,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions.
[2024-06-14 13:29:29,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.459375
[2024-06-14 13:29:29,660 INFO L175 Difference]: Start difference. First operand has 239 places, 413 transitions, 7339 flow. Second operand 8 states and 147 transitions.
[2024-06-14 13:29:29,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 450 transitions, 8588 flow
[2024-06-14 13:29:30,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 450 transitions, 8197 flow, removed 11 selfloop flow, removed 9 redundant places.
[2024-06-14 13:29:30,387 INFO L231 Difference]: Finished difference. Result has 238 places, 416 transitions, 7254 flow
[2024-06-14 13:29:30,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=6954, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7254, PETRI_PLACES=238, PETRI_TRANSITIONS=416}
[2024-06-14 13:29:30,388 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 197 predicate places.
[2024-06-14 13:29:30,388 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 416 transitions, 7254 flow
[2024-06-14 13:29:30,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:29:30,388 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:30,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:30,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56
[2024-06-14 13:29:30,388 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:30,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:30,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1816163476, now seen corresponding path program 1 times
[2024-06-14 13:29:30,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:30,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974825963]
[2024-06-14 13:29:30,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:30,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:31,291 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 13:29:31,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:31,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974825963]
[2024-06-14 13:29:31,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974825963] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:31,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:31,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:29:31,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901271136]
[2024-06-14 13:29:31,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:31,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:29:31,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:31,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:29:31,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:29:31,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:31,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 416 transitions, 7254 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:31,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:31,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:31,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:33,380 INFO L124 PetriNetUnfolderBase]: 6167/9647 cut-off events.
[2024-06-14 13:29:33,381 INFO L125 PetriNetUnfolderBase]: For 420409/420428 co-relation queries the response was YES.
[2024-06-14 13:29:33,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71970 conditions, 9647 events. 6167/9647 cut-off events. For 420409/420428 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 62026 event pairs, 1616 based on Foata normal form. 30/9676 useless extension candidates. Maximal degree in co-relation 71850. Up to 6008 conditions per place.
[2024-06-14 13:29:33,486 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 292 selfloop transitions, 185 changer transitions 0/480 dead transitions.
[2024-06-14 13:29:33,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 480 transitions, 8941 flow
[2024-06-14 13:29:33,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:29:33,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:29:33,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions.
[2024-06-14 13:29:33,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5138888888888888
[2024-06-14 13:29:33,488 INFO L175 Difference]: Start difference. First operand has 238 places, 416 transitions, 7254 flow. Second operand 9 states and 185 transitions.
[2024-06-14 13:29:33,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 480 transitions, 8941 flow
[2024-06-14 13:29:34,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 480 transitions, 8738 flow, removed 21 selfloop flow, removed 5 redundant places.
[2024-06-14 13:29:34,490 INFO L231 Difference]: Finished difference. Result has 243 places, 420 transitions, 7588 flow
[2024-06-14 13:29:34,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=7051, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7588, PETRI_PLACES=243, PETRI_TRANSITIONS=420}
[2024-06-14 13:29:34,491 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 202 predicate places.
[2024-06-14 13:29:34,491 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 420 transitions, 7588 flow
[2024-06-14 13:29:34,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:34,492 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:34,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:34,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57
[2024-06-14 13:29:34,492 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:34,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:34,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1377580014, now seen corresponding path program 2 times
[2024-06-14 13:29:34,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:34,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999531434]
[2024-06-14 13:29:34,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:34,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:35,315 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 13:29:35,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:35,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999531434]
[2024-06-14 13:29:35,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999531434] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:35,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:35,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:29:35,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215211248]
[2024-06-14 13:29:35,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:35,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:29:35,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:35,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:29:35,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:29:35,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:35,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 420 transitions, 7588 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:35,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:35,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:35,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:37,598 INFO L124 PetriNetUnfolderBase]: 6447/10090 cut-off events.
[2024-06-14 13:29:37,598 INFO L125 PetriNetUnfolderBase]: For 539828/539839 co-relation queries the response was YES.
[2024-06-14 13:29:37,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76046 conditions, 10090 events. 6447/10090 cut-off events. For 539828/539839 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 65195 event pairs, 2041 based on Foata normal form. 92/10181 useless extension candidates. Maximal degree in co-relation 75924. Up to 8142 conditions per place.
[2024-06-14 13:29:37,715 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 311 selfloop transitions, 163 changer transitions 0/477 dead transitions.
[2024-06-14 13:29:37,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 477 transitions, 9109 flow
[2024-06-14 13:29:37,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 13:29:37,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 13:29:37,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 195 transitions.
[2024-06-14 13:29:37,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4875
[2024-06-14 13:29:37,716 INFO L175 Difference]: Start difference. First operand has 243 places, 420 transitions, 7588 flow. Second operand 10 states and 195 transitions.
[2024-06-14 13:29:37,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 477 transitions, 9109 flow
[2024-06-14 13:29:38,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 477 transitions, 8876 flow, removed 16 selfloop flow, removed 5 redundant places.
[2024-06-14 13:29:38,887 INFO L231 Difference]: Finished difference. Result has 248 places, 422 transitions, 7732 flow
[2024-06-14 13:29:38,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=7361, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7732, PETRI_PLACES=248, PETRI_TRANSITIONS=422}
[2024-06-14 13:29:38,888 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 207 predicate places.
[2024-06-14 13:29:38,888 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 422 transitions, 7732 flow
[2024-06-14 13:29:38,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:38,888 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:38,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:38,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58
[2024-06-14 13:29:38,889 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:38,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:38,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1377580293, now seen corresponding path program 1 times
[2024-06-14 13:29:38,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:38,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266198990]
[2024-06-14 13:29:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:38,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:39,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 13:29:39,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:39,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266198990]
[2024-06-14 13:29:39,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266198990] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:39,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:39,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:29:39,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035492539]
[2024-06-14 13:29:39,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:39,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:29:39,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:39,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:29:39,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:29:39,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:39,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 422 transitions, 7732 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:39,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:39,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:39,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:42,012 INFO L124 PetriNetUnfolderBase]: 6544/10219 cut-off events.
[2024-06-14 13:29:42,012 INFO L125 PetriNetUnfolderBase]: For 457691/457711 co-relation queries the response was YES.
[2024-06-14 13:29:42,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77985 conditions, 10219 events. 6544/10219 cut-off events. For 457691/457711 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 66201 event pairs, 1762 based on Foata normal form. 22/10240 useless extension candidates. Maximal degree in co-relation 77861. Up to 8300 conditions per place.
[2024-06-14 13:29:42,148 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 290 selfloop transitions, 201 changer transitions 0/494 dead transitions.
[2024-06-14 13:29:42,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 494 transitions, 9759 flow
[2024-06-14 13:29:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:29:42,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:29:42,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 177 transitions.
[2024-06-14 13:29:42,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664
[2024-06-14 13:29:42,150 INFO L175 Difference]: Start difference. First operand has 248 places, 422 transitions, 7732 flow. Second operand 9 states and 177 transitions.
[2024-06-14 13:29:42,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 494 transitions, 9759 flow
[2024-06-14 13:29:43,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 494 transitions, 9426 flow, removed 4 selfloop flow, removed 8 redundant places.
[2024-06-14 13:29:43,336 INFO L231 Difference]: Finished difference. Result has 252 places, 443 transitions, 8340 flow
[2024-06-14 13:29:43,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=7405, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8340, PETRI_PLACES=252, PETRI_TRANSITIONS=443}
[2024-06-14 13:29:43,337 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 211 predicate places.
[2024-06-14 13:29:43,337 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 443 transitions, 8340 flow
[2024-06-14 13:29:43,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:43,337 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:43,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:43,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59
[2024-06-14 13:29:43,338 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:43,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:43,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1384989603, now seen corresponding path program 2 times
[2024-06-14 13:29:43,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:43,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978277265]
[2024-06-14 13:29:43,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:43,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:44,253 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 13:29:44,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:44,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978277265]
[2024-06-14 13:29:44,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978277265] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:44,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:44,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:29:44,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939155305]
[2024-06-14 13:29:44,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:44,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:29:44,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:44,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:29:44,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:29:44,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:44,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 443 transitions, 8340 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:44,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:44,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:44,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:46,443 INFO L124 PetriNetUnfolderBase]: 6626/10337 cut-off events.
[2024-06-14 13:29:46,444 INFO L125 PetriNetUnfolderBase]: For 490220/490232 co-relation queries the response was YES.
[2024-06-14 13:29:46,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81988 conditions, 10337 events. 6626/10337 cut-off events. For 490220/490232 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 66911 event pairs, 1968 based on Foata normal form. 16/10352 useless extension candidates. Maximal degree in co-relation 81860. Up to 8800 conditions per place.
[2024-06-14 13:29:46,578 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 329 selfloop transitions, 168 changer transitions 0/500 dead transitions.
[2024-06-14 13:29:46,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 500 transitions, 10250 flow
[2024-06-14 13:29:46,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:29:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:29:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 172 transitions.
[2024-06-14 13:29:46,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4777777777777778
[2024-06-14 13:29:46,579 INFO L175 Difference]: Start difference. First operand has 252 places, 443 transitions, 8340 flow. Second operand 9 states and 172 transitions.
[2024-06-14 13:29:46,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 500 transitions, 10250 flow
[2024-06-14 13:29:47,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 500 transitions, 10087 flow, removed 71 selfloop flow, removed 2 redundant places.
[2024-06-14 13:29:47,865 INFO L231 Difference]: Finished difference. Result has 260 places, 454 transitions, 8751 flow
[2024-06-14 13:29:47,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8211, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8751, PETRI_PLACES=260, PETRI_TRANSITIONS=454}
[2024-06-14 13:29:47,866 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 219 predicate places.
[2024-06-14 13:29:47,866 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 454 transitions, 8751 flow
[2024-06-14 13:29:47,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:47,866 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:47,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:47,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60
[2024-06-14 13:29:47,866 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:47,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1643615907, now seen corresponding path program 1 times
[2024-06-14 13:29:47,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:47,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039340358]
[2024-06-14 13:29:47,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:47,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:48,914 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 13:29:48,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:48,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039340358]
[2024-06-14 13:29:48,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039340358] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:48,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:48,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:29:48,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682504136]
[2024-06-14 13:29:48,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:48,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:29:48,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:48,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:29:48,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:29:48,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:48,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 454 transitions, 8751 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:48,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:48,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:48,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:51,037 INFO L124 PetriNetUnfolderBase]: 6634/10353 cut-off events.
[2024-06-14 13:29:51,037 INFO L125 PetriNetUnfolderBase]: For 506605/506605 co-relation queries the response was YES.
[2024-06-14 13:29:51,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83287 conditions, 10353 events. 6634/10353 cut-off events. For 506605/506605 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 67019 event pairs, 2539 based on Foata normal form. 2/10354 useless extension candidates. Maximal degree in co-relation 83156. Up to 10150 conditions per place.
[2024-06-14 13:29:51,190 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 435 selfloop transitions, 42 changer transitions 0/480 dead transitions.
[2024-06-14 13:29:51,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 480 transitions, 9892 flow
[2024-06-14 13:29:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:29:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:29:51,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 128 transitions.
[2024-06-14 13:29:51,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4
[2024-06-14 13:29:51,197 INFO L175 Difference]: Start difference. First operand has 260 places, 454 transitions, 8751 flow. Second operand 8 states and 128 transitions.
[2024-06-14 13:29:51,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 480 transitions, 9892 flow
[2024-06-14 13:29:52,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 480 transitions, 9717 flow, removed 37 selfloop flow, removed 3 redundant places.
[2024-06-14 13:29:52,532 INFO L231 Difference]: Finished difference. Result has 266 places, 462 transitions, 8821 flow
[2024-06-14 13:29:52,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8578, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8821, PETRI_PLACES=266, PETRI_TRANSITIONS=462}
[2024-06-14 13:29:52,533 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 225 predicate places.
[2024-06-14 13:29:52,533 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 462 transitions, 8821 flow
[2024-06-14 13:29:52,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:52,534 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:52,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:52,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61
[2024-06-14 13:29:52,534 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:52,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:52,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1799107398, now seen corresponding path program 3 times
[2024-06-14 13:29:52,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:52,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756291321]
[2024-06-14 13:29:52,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:52,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:53,580 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 13:29:53,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:53,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756291321]
[2024-06-14 13:29:53,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756291321] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:53,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:53,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:29:53,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829259647]
[2024-06-14 13:29:53,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:53,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:29:53,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:53,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:29:53,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:29:53,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:53,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 462 transitions, 8821 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:53,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:53,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:53,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:29:56,071 INFO L124 PetriNetUnfolderBase]: 6914/10797 cut-off events.
[2024-06-14 13:29:56,072 INFO L125 PetriNetUnfolderBase]: For 651988/651988 co-relation queries the response was YES.
[2024-06-14 13:29:56,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85930 conditions, 10797 events. 6914/10797 cut-off events. For 651988/651988 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 69980 event pairs, 2541 based on Foata normal form. 82/10878 useless extension candidates. Maximal degree in co-relation 85796. Up to 9784 conditions per place.
[2024-06-14 13:29:56,229 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 428 selfloop transitions, 69 changer transitions 0/500 dead transitions.
[2024-06-14 13:29:56,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 500 transitions, 10077 flow
[2024-06-14 13:29:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 13:29:56,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 13:29:56,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 173 transitions.
[2024-06-14 13:29:56,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4325
[2024-06-14 13:29:56,230 INFO L175 Difference]: Start difference. First operand has 266 places, 462 transitions, 8821 flow. Second operand 10 states and 173 transitions.
[2024-06-14 13:29:56,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 500 transitions, 10077 flow
[2024-06-14 13:29:57,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 500 transitions, 9966 flow, removed 27 selfloop flow, removed 4 redundant places.
[2024-06-14 13:29:57,627 INFO L231 Difference]: Finished difference. Result has 272 places, 464 transitions, 8901 flow
[2024-06-14 13:29:57,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8710, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8901, PETRI_PLACES=272, PETRI_TRANSITIONS=464}
[2024-06-14 13:29:57,627 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 231 predicate places.
[2024-06-14 13:29:57,628 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 464 transitions, 8901 flow
[2024-06-14 13:29:57,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:57,628 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:29:57,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:29:57,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62
[2024-06-14 13:29:57,628 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:29:57,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:29:57,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1799107119, now seen corresponding path program 3 times
[2024-06-14 13:29:57,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:29:57,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277744995]
[2024-06-14 13:29:57,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:29:57,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:29:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:29:58,626 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 13:29:58,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:29:58,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277744995]
[2024-06-14 13:29:58,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277744995] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:29:58,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:29:58,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:29:58,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257356603]
[2024-06-14 13:29:58,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:29:58,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:29:58,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:29:58,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:29:58,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:29:58,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:29:58,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 464 transitions, 8901 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:29:58,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:29:58,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:29:58,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:01,038 INFO L124 PetriNetUnfolderBase]: 7034/10965 cut-off events.
[2024-06-14 13:30:01,038 INFO L125 PetriNetUnfolderBase]: For 550239/550239 co-relation queries the response was YES.
[2024-06-14 13:30:01,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87913 conditions, 10965 events. 7034/10965 cut-off events. For 550239/550239 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 71097 event pairs, 2585 based on Foata normal form. 6/10970 useless extension candidates. Maximal degree in co-relation 87778. Up to 10288 conditions per place.
[2024-06-14 13:30:01,191 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 424 selfloop transitions, 81 changer transitions 4/512 dead transitions.
[2024-06-14 13:30:01,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 512 transitions, 10390 flow
[2024-06-14 13:30:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-06-14 13:30:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-06-14 13:30:01,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 183 transitions.
[2024-06-14 13:30:01,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4159090909090909
[2024-06-14 13:30:01,193 INFO L175 Difference]: Start difference. First operand has 272 places, 464 transitions, 8901 flow. Second operand 11 states and 183 transitions.
[2024-06-14 13:30:01,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 512 transitions, 10390 flow
[2024-06-14 13:30:02,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 512 transitions, 10233 flow, removed 6 selfloop flow, removed 8 redundant places.
[2024-06-14 13:30:02,777 INFO L231 Difference]: Finished difference. Result has 276 places, 478 transitions, 9219 flow
[2024-06-14 13:30:02,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8762, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9219, PETRI_PLACES=276, PETRI_TRANSITIONS=478}
[2024-06-14 13:30:02,777 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 235 predicate places.
[2024-06-14 13:30:02,778 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 478 transitions, 9219 flow
[2024-06-14 13:30:02,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:30:02,778 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:02,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:02,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63
[2024-06-14 13:30:02,778 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:02,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash 148300646, now seen corresponding path program 1 times
[2024-06-14 13:30:02,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:02,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134841659]
[2024-06-14 13:30:02,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:02,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:03,586 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 13:30:03,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:03,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134841659]
[2024-06-14 13:30:03,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134841659] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:03,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:03,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:30:03,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368089364]
[2024-06-14 13:30:03,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:03,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:30:03,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:03,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:30:03,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:30:03,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:03,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 478 transitions, 9219 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:03,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:03,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:03,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:05,959 INFO L124 PetriNetUnfolderBase]: 7069/11013 cut-off events.
[2024-06-14 13:30:05,959 INFO L125 PetriNetUnfolderBase]: For 571256/571256 co-relation queries the response was YES.
[2024-06-14 13:30:06,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89105 conditions, 11013 events. 7069/11013 cut-off events. For 571256/571256 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 71477 event pairs, 2791 based on Foata normal form. 3/11015 useless extension candidates. Maximal degree in co-relation 88968. Up to 10621 conditions per place.
[2024-06-14 13:30:06,132 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 456 selfloop transitions, 54 changer transitions 0/513 dead transitions.
[2024-06-14 13:30:06,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 513 transitions, 10696 flow
[2024-06-14 13:30:06,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:30:06,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:30:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions.
[2024-06-14 13:30:06,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45
[2024-06-14 13:30:06,134 INFO L175 Difference]: Start difference. First operand has 276 places, 478 transitions, 9219 flow. Second operand 7 states and 126 transitions.
[2024-06-14 13:30:06,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 513 transitions, 10696 flow
[2024-06-14 13:30:07,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 513 transitions, 10503 flow, removed 34 selfloop flow, removed 7 redundant places.
[2024-06-14 13:30:07,607 INFO L231 Difference]: Finished difference. Result has 277 places, 484 transitions, 9328 flow
[2024-06-14 13:30:07,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=9026, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9328, PETRI_PLACES=277, PETRI_TRANSITIONS=484}
[2024-06-14 13:30:07,608 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 236 predicate places.
[2024-06-14 13:30:07,608 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 484 transitions, 9328 flow
[2024-06-14 13:30:07,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:07,608 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:07,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:07,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64
[2024-06-14 13:30:07,609 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:07,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:07,609 INFO L85 PathProgramCache]: Analyzing trace with hash 158776166, now seen corresponding path program 2 times
[2024-06-14 13:30:07,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:07,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986718489]
[2024-06-14 13:30:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:07,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:08,374 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 13:30:08,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:08,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986718489]
[2024-06-14 13:30:08,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986718489] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:08,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:08,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:30:08,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060357393]
[2024-06-14 13:30:08,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:08,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:30:08,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:08,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:30:08,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:30:08,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:08,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 484 transitions, 9328 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:08,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:08,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:08,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:10,713 INFO L124 PetriNetUnfolderBase]: 7078/11022 cut-off events.
[2024-06-14 13:30:10,713 INFO L125 PetriNetUnfolderBase]: For 583224/583224 co-relation queries the response was YES.
[2024-06-14 13:30:10,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89189 conditions, 11022 events. 7078/11022 cut-off events. For 583224/583224 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 71484 event pairs, 2835 based on Foata normal form. 5/11026 useless extension candidates. Maximal degree in co-relation 89050. Up to 10775 conditions per place.
[2024-06-14 13:30:10,878 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 474 selfloop transitions, 31 changer transitions 0/508 dead transitions.
[2024-06-14 13:30:10,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 508 transitions, 10554 flow
[2024-06-14 13:30:10,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:30:10,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:30:10,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions.
[2024-06-14 13:30:10,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43214285714285716
[2024-06-14 13:30:10,879 INFO L175 Difference]: Start difference. First operand has 277 places, 484 transitions, 9328 flow. Second operand 7 states and 121 transitions.
[2024-06-14 13:30:10,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 508 transitions, 10554 flow
[2024-06-14 13:30:12,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 508 transitions, 10220 flow, removed 20 selfloop flow, removed 7 redundant places.
[2024-06-14 13:30:12,415 INFO L231 Difference]: Finished difference. Result has 277 places, 487 transitions, 9150 flow
[2024-06-14 13:30:12,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=9003, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9150, PETRI_PLACES=277, PETRI_TRANSITIONS=487}
[2024-06-14 13:30:12,416 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 236 predicate places.
[2024-06-14 13:30:12,416 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 487 transitions, 9150 flow
[2024-06-14 13:30:12,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:12,417 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:12,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:12,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65
[2024-06-14 13:30:12,417 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:12,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:12,417 INFO L85 PathProgramCache]: Analyzing trace with hash -79510480, now seen corresponding path program 3 times
[2024-06-14 13:30:12,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:12,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856793783]
[2024-06-14 13:30:12,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:12,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:13,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 13:30:13,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:13,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856793783]
[2024-06-14 13:30:13,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856793783] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:13,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:13,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:30:13,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925224742]
[2024-06-14 13:30:13,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:13,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:30:13,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:13,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:30:13,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:30:13,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:13,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 487 transitions, 9150 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:13,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:13,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:13,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:15,513 INFO L124 PetriNetUnfolderBase]: 7108/11066 cut-off events.
[2024-06-14 13:30:15,513 INFO L125 PetriNetUnfolderBase]: For 577094/577094 co-relation queries the response was YES.
[2024-06-14 13:30:15,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89259 conditions, 11066 events. 7108/11066 cut-off events. For 577094/577094 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 71865 event pairs, 2866 based on Foata normal form. 6/11071 useless extension candidates. Maximal degree in co-relation 89120. Up to 10790 conditions per place.
[2024-06-14 13:30:15,678 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 478 selfloop transitions, 36 changer transitions 0/517 dead transitions.
[2024-06-14 13:30:15,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 517 transitions, 10442 flow
[2024-06-14 13:30:15,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:30:15,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:30:15,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 135 transitions.
[2024-06-14 13:30:15,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.421875
[2024-06-14 13:30:15,679 INFO L175 Difference]: Start difference. First operand has 277 places, 487 transitions, 9150 flow. Second operand 8 states and 135 transitions.
[2024-06-14 13:30:15,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 517 transitions, 10442 flow
[2024-06-14 13:30:17,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 517 transitions, 10344 flow, removed 20 selfloop flow, removed 6 redundant places.
[2024-06-14 13:30:17,415 INFO L231 Difference]: Finished difference. Result has 279 places, 490 transitions, 9213 flow
[2024-06-14 13:30:17,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=9052, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9213, PETRI_PLACES=279, PETRI_TRANSITIONS=490}
[2024-06-14 13:30:17,416 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 238 predicate places.
[2024-06-14 13:30:17,416 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 490 transitions, 9213 flow
[2024-06-14 13:30:17,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:17,416 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:17,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:17,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66
[2024-06-14 13:30:17,417 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:17,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:17,417 INFO L85 PathProgramCache]: Analyzing trace with hash 245230640, now seen corresponding path program 4 times
[2024-06-14 13:30:17,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:17,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387290831]
[2024-06-14 13:30:17,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:17,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:17,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 13:30:17,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:17,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387290831]
[2024-06-14 13:30:17,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387290831] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:17,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:17,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:30:17,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023730812]
[2024-06-14 13:30:17,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:17,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:30:17,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:17,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:30:17,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:30:18,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:18,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 490 transitions, 9213 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:18,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:18,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:18,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:20,319 INFO L124 PetriNetUnfolderBase]: 7090/11040 cut-off events.
[2024-06-14 13:30:20,319 INFO L125 PetriNetUnfolderBase]: For 566074/566074 co-relation queries the response was YES.
[2024-06-14 13:30:20,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88595 conditions, 11040 events. 7090/11040 cut-off events. For 566074/566074 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 71680 event pairs, 2866 based on Foata normal form. 6/11045 useless extension candidates. Maximal degree in co-relation 88456. Up to 10845 conditions per place.
[2024-06-14 13:30:20,495 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 483 selfloop transitions, 23 changer transitions 0/509 dead transitions.
[2024-06-14 13:30:20,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 509 transitions, 10337 flow
[2024-06-14 13:30:20,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:30:20,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:30:20,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 128 transitions.
[2024-06-14 13:30:20,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4
[2024-06-14 13:30:20,496 INFO L175 Difference]: Start difference. First operand has 279 places, 490 transitions, 9213 flow. Second operand 8 states and 128 transitions.
[2024-06-14 13:30:20,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 509 transitions, 10337 flow
[2024-06-14 13:30:22,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 509 transitions, 10207 flow, removed 31 selfloop flow, removed 6 redundant places.
[2024-06-14 13:30:22,331 INFO L231 Difference]: Finished difference. Result has 281 places, 490 transitions, 9135 flow
[2024-06-14 13:30:22,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=9083, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9135, PETRI_PLACES=281, PETRI_TRANSITIONS=490}
[2024-06-14 13:30:22,331 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 240 predicate places.
[2024-06-14 13:30:22,332 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 490 transitions, 9135 flow
[2024-06-14 13:30:22,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:22,332 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:22,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:22,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67
[2024-06-14 13:30:22,332 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:22,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:22,333 INFO L85 PathProgramCache]: Analyzing trace with hash 836979619, now seen corresponding path program 1 times
[2024-06-14 13:30:22,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:22,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104929288]
[2024-06-14 13:30:22,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:22,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:22,953 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 13:30:22,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:22,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104929288]
[2024-06-14 13:30:22,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104929288] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:22,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:22,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:30:22,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893806916]
[2024-06-14 13:30:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:22,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:30:22,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:22,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:30:22,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:30:23,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:23,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 490 transitions, 9135 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:23,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:23,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:23,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:25,357 INFO L124 PetriNetUnfolderBase]: 7078/11026 cut-off events.
[2024-06-14 13:30:25,357 INFO L125 PetriNetUnfolderBase]: For 567010/567010 co-relation queries the response was YES.
[2024-06-14 13:30:25,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88130 conditions, 11026 events. 7078/11026 cut-off events. For 567010/567010 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 71603 event pairs, 2830 based on Foata normal form. 4/11029 useless extension candidates. Maximal degree in co-relation 87990. Up to 10805 conditions per place.
[2024-06-14 13:30:25,530 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 476 selfloop transitions, 32 changer transitions 0/511 dead transitions.
[2024-06-14 13:30:25,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 511 transitions, 10266 flow
[2024-06-14 13:30:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:30:25,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:30:25,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 109 transitions.
[2024-06-14 13:30:25,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45416666666666666
[2024-06-14 13:30:25,531 INFO L175 Difference]: Start difference. First operand has 281 places, 490 transitions, 9135 flow. Second operand 6 states and 109 transitions.
[2024-06-14 13:30:25,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 511 transitions, 10266 flow
[2024-06-14 13:30:27,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 511 transitions, 9997 flow, removed 33 selfloop flow, removed 8 redundant places.
[2024-06-14 13:30:27,180 INFO L231 Difference]: Finished difference. Result has 279 places, 490 transitions, 8949 flow
[2024-06-14 13:30:27,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8866, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8949, PETRI_PLACES=279, PETRI_TRANSITIONS=490}
[2024-06-14 13:30:27,181 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 238 predicate places.
[2024-06-14 13:30:27,181 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 490 transitions, 8949 flow
[2024-06-14 13:30:27,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:27,181 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:27,181 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:27,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68
[2024-06-14 13:30:27,182 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:27,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:27,182 INFO L85 PathProgramCache]: Analyzing trace with hash 484212767, now seen corresponding path program 2 times
[2024-06-14 13:30:27,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:27,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047057525]
[2024-06-14 13:30:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:27,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:27,889 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 13:30:27,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:27,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047057525]
[2024-06-14 13:30:27,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047057525] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:27,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:27,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:30:27,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538348402]
[2024-06-14 13:30:27,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:27,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:30:27,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:27,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:30:27,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:30:27,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:27,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 490 transitions, 8949 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:27,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:27,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:27,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:30,292 INFO L124 PetriNetUnfolderBase]: 7046/10990 cut-off events.
[2024-06-14 13:30:30,293 INFO L125 PetriNetUnfolderBase]: For 554505/554532 co-relation queries the response was YES.
[2024-06-14 13:30:30,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86565 conditions, 10990 events. 7046/10990 cut-off events. For 554505/554532 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 71551 event pairs, 2352 based on Foata normal form. 32/11021 useless extension candidates. Maximal degree in co-relation 86424. Up to 10315 conditions per place.
[2024-06-14 13:30:30,476 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 424 selfloop transitions, 94 changer transitions 0/521 dead transitions.
[2024-06-14 13:30:30,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 521 transitions, 10162 flow
[2024-06-14 13:30:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:30:30,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:30:30,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions.
[2024-06-14 13:30:30,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4785714285714286
[2024-06-14 13:30:30,478 INFO L175 Difference]: Start difference. First operand has 279 places, 490 transitions, 8949 flow. Second operand 7 states and 134 transitions.
[2024-06-14 13:30:30,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 521 transitions, 10162 flow
[2024-06-14 13:30:31,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 521 transitions, 10022 flow, removed 23 selfloop flow, removed 6 redundant places.
[2024-06-14 13:30:31,859 INFO L231 Difference]: Finished difference. Result has 280 places, 490 transitions, 9038 flow
[2024-06-14 13:30:31,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8809, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9038, PETRI_PLACES=280, PETRI_TRANSITIONS=490}
[2024-06-14 13:30:31,860 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 239 predicate places.
[2024-06-14 13:30:31,860 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 490 transitions, 9038 flow
[2024-06-14 13:30:31,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:31,860 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:31,860 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:31,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69
[2024-06-14 13:30:31,861 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:31,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:31,861 INFO L85 PathProgramCache]: Analyzing trace with hash 290475942, now seen corresponding path program 3 times
[2024-06-14 13:30:31,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:31,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519978552]
[2024-06-14 13:30:31,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:31,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:32,640 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 13:30:32,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:32,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519978552]
[2024-06-14 13:30:32,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519978552] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:32,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:32,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:30:32,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661727220]
[2024-06-14 13:30:32,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:32,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:30:32,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:32,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:30:32,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:30:32,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:32,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 490 transitions, 9038 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:32,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:32,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:32,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:34,967 INFO L124 PetriNetUnfolderBase]: 7037/10972 cut-off events.
[2024-06-14 13:30:34,968 INFO L125 PetriNetUnfolderBase]: For 530637/530637 co-relation queries the response was YES.
[2024-06-14 13:30:35,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86292 conditions, 10972 events. 7037/10972 cut-off events. For 530637/530637 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 71311 event pairs, 2820 based on Foata normal form. 3/10974 useless extension candidates. Maximal degree in co-relation 86152. Up to 10703 conditions per place.
[2024-06-14 13:30:35,127 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 467 selfloop transitions, 43 changer transitions 0/513 dead transitions.
[2024-06-14 13:30:35,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 513 transitions, 10205 flow
[2024-06-14 13:30:35,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:30:35,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:30:35,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions.
[2024-06-14 13:30:35,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333
[2024-06-14 13:30:35,128 INFO L175 Difference]: Start difference. First operand has 280 places, 490 transitions, 9038 flow. Second operand 6 states and 110 transitions.
[2024-06-14 13:30:35,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 513 transitions, 10205 flow
[2024-06-14 13:30:36,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 513 transitions, 10014 flow, removed 17 selfloop flow, removed 6 redundant places.
[2024-06-14 13:30:36,611 INFO L231 Difference]: Finished difference. Result has 280 places, 490 transitions, 8962 flow
[2024-06-14 13:30:36,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8847, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8962, PETRI_PLACES=280, PETRI_TRANSITIONS=490}
[2024-06-14 13:30:36,611 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 239 predicate places.
[2024-06-14 13:30:36,612 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 490 transitions, 8962 flow
[2024-06-14 13:30:36,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 13:30:36,612 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:36,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:36,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70
[2024-06-14 13:30:36,612 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:36,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:36,613 INFO L85 PathProgramCache]: Analyzing trace with hash 113322753, now seen corresponding path program 2 times
[2024-06-14 13:30:36,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:36,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494622385]
[2024-06-14 13:30:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:36,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:37,572 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 13:30:37,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:37,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494622385]
[2024-06-14 13:30:37,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494622385] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:37,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:37,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:30:37,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766315265]
[2024-06-14 13:30:37,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:37,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:30:37,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:37,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:30:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:30:37,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:37,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 490 transitions, 8962 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:30:37,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:37,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:37,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:39,926 INFO L124 PetriNetUnfolderBase]: 7045/10989 cut-off events.
[2024-06-14 13:30:39,927 INFO L125 PetriNetUnfolderBase]: For 528321/528321 co-relation queries the response was YES.
[2024-06-14 13:30:40,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85868 conditions, 10989 events. 7045/10989 cut-off events. For 528321/528321 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 71506 event pairs, 2677 based on Foata normal form. 2/10990 useless extension candidates. Maximal degree in co-relation 85729. Up to 10780 conditions per place.
[2024-06-14 13:30:40,105 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 463 selfloop transitions, 42 changer transitions 0/508 dead transitions.
[2024-06-14 13:30:40,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 508 transitions, 10062 flow
[2024-06-14 13:30:40,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:30:40,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:30:40,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 114 transitions.
[2024-06-14 13:30:40,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40714285714285714
[2024-06-14 13:30:40,106 INFO L175 Difference]: Start difference. First operand has 280 places, 490 transitions, 8962 flow. Second operand 7 states and 114 transitions.
[2024-06-14 13:30:40,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 508 transitions, 10062 flow
[2024-06-14 13:30:41,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 508 transitions, 9943 flow, removed 4 selfloop flow, removed 6 redundant places.
[2024-06-14 13:30:41,644 INFO L231 Difference]: Finished difference. Result has 281 places, 492 transitions, 8983 flow
[2024-06-14 13:30:41,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8843, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=8983, PETRI_PLACES=281, PETRI_TRANSITIONS=492}
[2024-06-14 13:30:41,645 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 240 predicate places.
[2024-06-14 13:30:41,645 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 492 transitions, 8983 flow
[2024-06-14 13:30:41,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:30:41,645 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:41,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:41,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71
[2024-06-14 13:30:41,646 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:41,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:41,646 INFO L85 PathProgramCache]: Analyzing trace with hash 497107713, now seen corresponding path program 3 times
[2024-06-14 13:30:41,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:41,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680562913]
[2024-06-14 13:30:41,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:41,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:42,569 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 13:30:42,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:42,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680562913]
[2024-06-14 13:30:42,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680562913] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:42,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:42,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:30:42,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182833830]
[2024-06-14 13:30:42,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:42,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:30:42,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:42,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:30:42,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:30:42,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:42,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 492 transitions, 8983 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:30:42,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:42,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:42,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:44,899 INFO L124 PetriNetUnfolderBase]: 7053/11001 cut-off events.
[2024-06-14 13:30:44,899 INFO L125 PetriNetUnfolderBase]: For 528900/528900 co-relation queries the response was YES.
[2024-06-14 13:30:45,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85927 conditions, 11001 events. 7053/11001 cut-off events. For 528900/528900 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 71566 event pairs, 2616 based on Foata normal form. 2/11002 useless extension candidates. Maximal degree in co-relation 85788. Up to 10772 conditions per place.
[2024-06-14 13:30:45,092 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 461 selfloop transitions, 46 changer transitions 0/510 dead transitions.
[2024-06-14 13:30:45,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 510 transitions, 10091 flow
[2024-06-14 13:30:45,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:30:45,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:30:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 105 transitions.
[2024-06-14 13:30:45,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375
[2024-06-14 13:30:45,093 INFO L175 Difference]: Start difference. First operand has 281 places, 492 transitions, 8983 flow. Second operand 6 states and 105 transitions.
[2024-06-14 13:30:45,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 510 transitions, 10091 flow
[2024-06-14 13:30:46,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 510 transitions, 9978 flow, removed 26 selfloop flow, removed 4 redundant places.
[2024-06-14 13:30:46,619 INFO L231 Difference]: Finished difference. Result has 283 places, 494 transitions, 9025 flow
[2024-06-14 13:30:46,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8874, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9025, PETRI_PLACES=283, PETRI_TRANSITIONS=494}
[2024-06-14 13:30:46,620 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 242 predicate places.
[2024-06-14 13:30:46,620 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 494 transitions, 9025 flow
[2024-06-14 13:30:46,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:30:46,620 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:46,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:46,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72
[2024-06-14 13:30:46,620 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:46,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:46,621 INFO L85 PathProgramCache]: Analyzing trace with hash 497553183, now seen corresponding path program 4 times
[2024-06-14 13:30:46,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:46,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343380575]
[2024-06-14 13:30:46,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:46,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:47,558 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 13:30:47,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:47,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343380575]
[2024-06-14 13:30:47,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343380575] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:47,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:47,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:30:47,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937222283]
[2024-06-14 13:30:47,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:47,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:30:47,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:47,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:30:47,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:30:47,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:47,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 494 transitions, 9025 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:30:47,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:47,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:47,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:49,837 INFO L124 PetriNetUnfolderBase]: 7048/10985 cut-off events.
[2024-06-14 13:30:49,838 INFO L125 PetriNetUnfolderBase]: For 524847/524847 co-relation queries the response was YES.
[2024-06-14 13:30:49,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85709 conditions, 10985 events. 7048/10985 cut-off events. For 524847/524847 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 71340 event pairs, 2844 based on Foata normal form. 2/10986 useless extension candidates. Maximal degree in co-relation 85569. Up to 10839 conditions per place.
[2024-06-14 13:30:50,014 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 490 selfloop transitions, 14 changer transitions 0/507 dead transitions.
[2024-06-14 13:30:50,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 507 transitions, 10109 flow
[2024-06-14 13:30:50,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 13:30:50,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 13:30:50,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 96 transitions.
[2024-06-14 13:30:50,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4
[2024-06-14 13:30:50,015 INFO L175 Difference]: Start difference. First operand has 283 places, 494 transitions, 9025 flow. Second operand 6 states and 96 transitions.
[2024-06-14 13:30:50,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 507 transitions, 10109 flow
[2024-06-14 13:30:51,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 507 transitions, 9984 flow, removed 22 selfloop flow, removed 4 redundant places.
[2024-06-14 13:30:51,568 INFO L231 Difference]: Finished difference. Result has 285 places, 496 transitions, 8983 flow
[2024-06-14 13:30:51,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8904, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8983, PETRI_PLACES=285, PETRI_TRANSITIONS=496}
[2024-06-14 13:30:51,569 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 244 predicate places.
[2024-06-14 13:30:51,569 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 496 transitions, 8983 flow
[2024-06-14 13:30:51,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:30:51,569 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:51,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:51,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73
[2024-06-14 13:30:51,570 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:51,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:51,570 INFO L85 PathProgramCache]: Analyzing trace with hash 968885719, now seen corresponding path program 4 times
[2024-06-14 13:30:51,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:51,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361597441]
[2024-06-14 13:30:51,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:51,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:52,531 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 13:30:52,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:52,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361597441]
[2024-06-14 13:30:52,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361597441] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:52,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:52,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:30:52,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552207209]
[2024-06-14 13:30:52,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:52,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:30:52,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:52,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:30:52,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:30:52,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:52,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 496 transitions, 8983 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:30:52,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:52,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:52,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:30:55,037 INFO L124 PetriNetUnfolderBase]: 7108/11075 cut-off events.
[2024-06-14 13:30:55,038 INFO L125 PetriNetUnfolderBase]: For 528662/528671 co-relation queries the response was YES.
[2024-06-14 13:30:55,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86182 conditions, 11075 events. 7108/11075 cut-off events. For 528662/528671 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 72114 event pairs, 2278 based on Foata normal form. 14/11088 useless extension candidates. Maximal degree in co-relation 86041. Up to 10312 conditions per place.
[2024-06-14 13:30:55,477 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 432 selfloop transitions, 115 changer transitions 0/550 dead transitions.
[2024-06-14 13:30:55,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 550 transitions, 10467 flow
[2024-06-14 13:30:55,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 13:30:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 13:30:55,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions.
[2024-06-14 13:30:55,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.465
[2024-06-14 13:30:55,479 INFO L175 Difference]: Start difference. First operand has 285 places, 496 transitions, 8983 flow. Second operand 10 states and 186 transitions.
[2024-06-14 13:30:55,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 550 transitions, 10467 flow
[2024-06-14 13:30:56,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 550 transitions, 10404 flow, removed 19 selfloop flow, removed 4 redundant places.
[2024-06-14 13:30:57,001 INFO L231 Difference]: Finished difference. Result has 292 places, 505 transitions, 9369 flow
[2024-06-14 13:30:57,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=8920, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9369, PETRI_PLACES=292, PETRI_TRANSITIONS=505}
[2024-06-14 13:30:57,002 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 251 predicate places.
[2024-06-14 13:30:57,002 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 505 transitions, 9369 flow
[2024-06-14 13:30:57,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:30:57,002 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:30:57,002 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:30:57,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74
[2024-06-14 13:30:57,003 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:30:57,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:30:57,003 INFO L85 PathProgramCache]: Analyzing trace with hash 112984140, now seen corresponding path program 4 times
[2024-06-14 13:30:57,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:30:57,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14785350]
[2024-06-14 13:30:57,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:30:57,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:30:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:30:57,839 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 13:30:57,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:30:57,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14785350]
[2024-06-14 13:30:57,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14785350] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:30:57,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:30:57,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:30:57,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438797565]
[2024-06-14 13:30:57,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:30:57,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:30:57,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:30:57,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:30:57,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:30:57,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:30:57,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 505 transitions, 9369 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:30:57,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:30:57,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:30:57,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:31:00,582 INFO L124 PetriNetUnfolderBase]: 7303/11393 cut-off events.
[2024-06-14 13:31:00,583 INFO L125 PetriNetUnfolderBase]: For 665798/665815 co-relation queries the response was YES.
[2024-06-14 13:31:00,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87996 conditions, 11393 events. 7303/11393 cut-off events. For 665798/665815 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 74093 event pairs, 1974 based on Foata normal form. 96/11488 useless extension candidates. Maximal degree in co-relation 87853. Up to 9222 conditions per place.
[2024-06-14 13:31:00,721 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 414 selfloop transitions, 141 changer transitions 1/559 dead transitions.
[2024-06-14 13:31:00,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 559 transitions, 10801 flow
[2024-06-14 13:31:00,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:31:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:31:00,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 180 transitions.
[2024-06-14 13:31:00,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5
[2024-06-14 13:31:00,723 INFO L175 Difference]: Start difference. First operand has 292 places, 505 transitions, 9369 flow. Second operand 9 states and 180 transitions.
[2024-06-14 13:31:00,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 559 transitions, 10801 flow
[2024-06-14 13:31:02,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 559 transitions, 10494 flow, removed 42 selfloop flow, removed 7 redundant places.
[2024-06-14 13:31:02,268 INFO L231 Difference]: Finished difference. Result has 294 places, 505 transitions, 9398 flow
[2024-06-14 13:31:02,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=9062, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9398, PETRI_PLACES=294, PETRI_TRANSITIONS=505}
[2024-06-14 13:31:02,268 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 253 predicate places.
[2024-06-14 13:31:02,268 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 505 transitions, 9398 flow
[2024-06-14 13:31:02,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:02,269 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:31:02,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:31:02,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75
[2024-06-14 13:31:02,269 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:31:02,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:31:02,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1625414393, now seen corresponding path program 5 times
[2024-06-14 13:31:02,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:31:02,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248655515]
[2024-06-14 13:31:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:31:02,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:31:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:31:03,220 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 13:31:03,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:31:03,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248655515]
[2024-06-14 13:31:03,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248655515] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:31:03,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:31:03,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:31:03,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657734261]
[2024-06-14 13:31:03,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:31:03,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:31:03,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:31:03,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:31:03,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:31:03,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:31:03,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 505 transitions, 9398 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:03,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:31:03,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:31:03,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:31:05,865 INFO L124 PetriNetUnfolderBase]: 7368/11478 cut-off events.
[2024-06-14 13:31:05,865 INFO L125 PetriNetUnfolderBase]: For 544858/544875 co-relation queries the response was YES.
[2024-06-14 13:31:06,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89562 conditions, 11478 events. 7368/11478 cut-off events. For 544858/544875 co-relation queries the response was YES. Maximal size of possible extension queue 666. Compared 74829 event pairs, 2140 based on Foata normal form. 21/11498 useless extension candidates. Maximal degree in co-relation 89418. Up to 10676 conditions per place.
[2024-06-14 13:31:06,049 INFO L140 encePairwiseOnDemand]: 26/40 looper letters, 418 selfloop transitions, 159 changer transitions 4/584 dead transitions.
[2024-06-14 13:31:06,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 584 transitions, 11486 flow
[2024-06-14 13:31:06,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:31:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:31:06,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions.
[2024-06-14 13:31:06,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49722222222222223
[2024-06-14 13:31:06,050 INFO L175 Difference]: Start difference. First operand has 294 places, 505 transitions, 9398 flow. Second operand 9 states and 179 transitions.
[2024-06-14 13:31:06,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 584 transitions, 11486 flow
[2024-06-14 13:31:07,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 584 transitions, 11223 flow, removed 7 selfloop flow, removed 7 redundant places.
[2024-06-14 13:31:07,785 INFO L231 Difference]: Finished difference. Result has 301 places, 534 transitions, 10231 flow
[2024-06-14 13:31:07,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=9154, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10231, PETRI_PLACES=301, PETRI_TRANSITIONS=534}
[2024-06-14 13:31:07,786 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 260 predicate places.
[2024-06-14 13:31:07,786 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 534 transitions, 10231 flow
[2024-06-14 13:31:07,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:07,787 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:31:07,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:31:07,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76
[2024-06-14 13:31:07,787 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:31:07,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:31:07,788 INFO L85 PathProgramCache]: Analyzing trace with hash 497559135, now seen corresponding path program 1 times
[2024-06-14 13:31:07,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:31:07,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741056472]
[2024-06-14 13:31:07,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:31:07,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:31:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:31:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 13:31:08,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:31:08,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741056472]
[2024-06-14 13:31:08,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741056472] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:31:08,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:31:08,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:31:08,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109074067]
[2024-06-14 13:31:08,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:31:08,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:31:08,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:31:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:31:08,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:31:08,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:31:08,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 534 transitions, 10231 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:08,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:31:08,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:31:08,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:31:11,324 INFO L124 PetriNetUnfolderBase]: 7278/11357 cut-off events.
[2024-06-14 13:31:11,324 INFO L125 PetriNetUnfolderBase]: For 551609/551609 co-relation queries the response was YES.
[2024-06-14 13:31:11,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90002 conditions, 11357 events. 7278/11357 cut-off events. For 551609/551609 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 73793 event pairs, 2889 based on Foata normal form. 8/11364 useless extension candidates. Maximal degree in co-relation 89852. Up to 11053 conditions per place.
[2024-06-14 13:31:11,497 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 525 selfloop transitions, 33 changer transitions 0/561 dead transitions.
[2024-06-14 13:31:11,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 561 transitions, 11525 flow
[2024-06-14 13:31:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 13:31:11,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 13:31:11,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 127 transitions.
[2024-06-14 13:31:11,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45357142857142857
[2024-06-14 13:31:11,499 INFO L175 Difference]: Start difference. First operand has 301 places, 534 transitions, 10231 flow. Second operand 7 states and 127 transitions.
[2024-06-14 13:31:11,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 561 transitions, 11525 flow
[2024-06-14 13:31:13,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 561 transitions, 11356 flow, removed 67 selfloop flow, removed 2 redundant places.
[2024-06-14 13:31:13,374 INFO L231 Difference]: Finished difference. Result has 306 places, 534 transitions, 10134 flow
[2024-06-14 13:31:13,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=10064, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=501, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10134, PETRI_PLACES=306, PETRI_TRANSITIONS=534}
[2024-06-14 13:31:13,375 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 265 predicate places.
[2024-06-14 13:31:13,375 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 534 transitions, 10134 flow
[2024-06-14 13:31:13,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:13,375 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:31:13,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:31:13,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77
[2024-06-14 13:31:13,376 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:31:13,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:31:13,376 INFO L85 PathProgramCache]: Analyzing trace with hash -249451029, now seen corresponding path program 1 times
[2024-06-14 13:31:13,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:31:13,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350245789]
[2024-06-14 13:31:13,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:31:13,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:31:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:31:14,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 13:31:14,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:31:14,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350245789]
[2024-06-14 13:31:14,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350245789] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:31:14,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:31:14,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:31:14,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333714542]
[2024-06-14 13:31:14,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:31:14,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:31:14,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:31:14,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:31:14,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:31:14,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:31:14,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 534 transitions, 10134 flow. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:14,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:31:14,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:31:14,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:31:16,555 INFO L124 PetriNetUnfolderBase]: 7304/11393 cut-off events.
[2024-06-14 13:31:16,555 INFO L125 PetriNetUnfolderBase]: For 541081/541100 co-relation queries the response was YES.
[2024-06-14 13:31:16,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89917 conditions, 11393 events. 7304/11393 cut-off events. For 541081/541100 co-relation queries the response was YES. Maximal size of possible extension queue 671. Compared 74458 event pairs, 2000 based on Foata normal form. 18/11410 useless extension candidates. Maximal degree in co-relation 89765. Up to 10178 conditions per place.
[2024-06-14 13:31:16,728 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 449 selfloop transitions, 182 changer transitions 9/643 dead transitions.
[2024-06-14 13:31:16,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 643 transitions, 13143 flow
[2024-06-14 13:31:16,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:31:16,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:31:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 148 transitions.
[2024-06-14 13:31:16,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625
[2024-06-14 13:31:16,729 INFO L175 Difference]: Start difference. First operand has 306 places, 534 transitions, 10134 flow. Second operand 8 states and 148 transitions.
[2024-06-14 13:31:16,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 643 transitions, 13143 flow
[2024-06-14 13:31:18,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 643 transitions, 13045 flow, removed 4 selfloop flow, removed 6 redundant places.
[2024-06-14 13:31:18,343 INFO L231 Difference]: Finished difference. Result has 311 places, 592 transitions, 11647 flow
[2024-06-14 13:31:18,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=10042, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11647, PETRI_PLACES=311, PETRI_TRANSITIONS=592}
[2024-06-14 13:31:18,344 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 270 predicate places.
[2024-06-14 13:31:18,344 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 592 transitions, 11647 flow
[2024-06-14 13:31:18,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:18,344 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:31:18,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:31:18,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78
[2024-06-14 13:31:18,344 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:31:18,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:31:18,345 INFO L85 PathProgramCache]: Analyzing trace with hash -244689429, now seen corresponding path program 2 times
[2024-06-14 13:31:18,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:31:18,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438327778]
[2024-06-14 13:31:18,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:31:18,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:31:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:31:19,199 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 13:31:19,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:31:19,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438327778]
[2024-06-14 13:31:19,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438327778] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:31:19,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:31:19,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:31:19,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348704484]
[2024-06-14 13:31:19,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:31:19,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:31:19,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:31:19,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:31:19,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:31:19,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:31:19,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 592 transitions, 11647 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:19,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:31:19,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:31:19,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:31:22,091 INFO L124 PetriNetUnfolderBase]: 7256/11336 cut-off events.
[2024-06-14 13:31:22,091 INFO L125 PetriNetUnfolderBase]: For 575771/575782 co-relation queries the response was YES.
[2024-06-14 13:31:22,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92340 conditions, 11336 events. 7256/11336 cut-off events. For 575771/575782 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 74167 event pairs, 2107 based on Foata normal form. 18/11353 useless extension candidates. Maximal degree in co-relation 92185. Up to 9668 conditions per place.
[2024-06-14 13:31:22,270 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 424 selfloop transitions, 226 changer transitions 0/653 dead transitions.
[2024-06-14 13:31:22,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 653 transitions, 13629 flow
[2024-06-14 13:31:22,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-06-14 13:31:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-06-14 13:31:22,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 204 transitions.
[2024-06-14 13:31:22,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4636363636363636
[2024-06-14 13:31:22,272 INFO L175 Difference]: Start difference. First operand has 311 places, 592 transitions, 11647 flow. Second operand 11 states and 204 transitions.
[2024-06-14 13:31:22,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 653 transitions, 13629 flow
[2024-06-14 13:31:24,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 653 transitions, 13403 flow, removed 112 selfloop flow, removed 1 redundant places.
[2024-06-14 13:31:24,736 INFO L231 Difference]: Finished difference. Result has 321 places, 601 transitions, 12124 flow
[2024-06-14 13:31:24,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=11507, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12124, PETRI_PLACES=321, PETRI_TRANSITIONS=601}
[2024-06-14 13:31:24,737 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 280 predicate places.
[2024-06-14 13:31:24,737 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 601 transitions, 12124 flow
[2024-06-14 13:31:24,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:24,737 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:31:24,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:31:24,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79
[2024-06-14 13:31:24,737 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:31:24,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:31:24,738 INFO L85 PathProgramCache]: Analyzing trace with hash -162759219, now seen corresponding path program 3 times
[2024-06-14 13:31:24,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:31:24,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478775145]
[2024-06-14 13:31:24,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:31:24,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:31:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:31:25,488 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 13:31:25,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:31:25,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478775145]
[2024-06-14 13:31:25,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478775145] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:31:25,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:31:25,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:31:25,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030284247]
[2024-06-14 13:31:25,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:31:25,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:31:25,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:31:25,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:31:25,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:31:25,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:31:25,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 601 transitions, 12124 flow. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:25,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:31:25,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:31:25,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:31:28,653 INFO L124 PetriNetUnfolderBase]: 7338/11457 cut-off events.
[2024-06-14 13:31:28,653 INFO L125 PetriNetUnfolderBase]: For 588232/588261 co-relation queries the response was YES.
[2024-06-14 13:31:28,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95048 conditions, 11457 events. 7338/11457 cut-off events. For 588232/588261 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 75121 event pairs, 2205 based on Foata normal form. 32/11488 useless extension candidates. Maximal degree in co-relation 94890. Up to 9983 conditions per place.
[2024-06-14 13:31:28,799 INFO L140 encePairwiseOnDemand]: 27/40 looper letters, 458 selfloop transitions, 195 changer transitions 0/656 dead transitions.
[2024-06-14 13:31:28,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 656 transitions, 14093 flow
[2024-06-14 13:31:28,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:31:28,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:31:28,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 166 transitions.
[2024-06-14 13:31:28,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46111111111111114
[2024-06-14 13:31:28,801 INFO L175 Difference]: Start difference. First operand has 321 places, 601 transitions, 12124 flow. Second operand 9 states and 166 transitions.
[2024-06-14 13:31:28,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 656 transitions, 14093 flow
[2024-06-14 13:31:30,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 656 transitions, 13520 flow, removed 66 selfloop flow, removed 9 redundant places.
[2024-06-14 13:31:30,900 INFO L231 Difference]: Finished difference. Result has 322 places, 614 transitions, 12266 flow
[2024-06-14 13:31:30,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=11596, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12266, PETRI_PLACES=322, PETRI_TRANSITIONS=614}
[2024-06-14 13:31:30,901 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 281 predicate places.
[2024-06-14 13:31:30,901 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 614 transitions, 12266 flow
[2024-06-14 13:31:30,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:30,902 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:31:30,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:31:30,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80
[2024-06-14 13:31:30,902 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:31:30,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:31:30,902 INFO L85 PathProgramCache]: Analyzing trace with hash -217723425, now seen corresponding path program 1 times
[2024-06-14 13:31:30,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:31:30,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416059194]
[2024-06-14 13:31:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:31:30,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:31:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:31:31,884 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 13:31:31,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:31:31,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416059194]
[2024-06-14 13:31:31,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416059194] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:31:31,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:31:31,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:31:31,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675997113]
[2024-06-14 13:31:31,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:31:31,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:31:31,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:31:31,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:31:31,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:31:32,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:31:32,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 614 transitions, 12266 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:32,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:31:32,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:31:32,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:31:35,036 INFO L124 PetriNetUnfolderBase]: 7580/11818 cut-off events.
[2024-06-14 13:31:35,037 INFO L125 PetriNetUnfolderBase]: For 704016/704045 co-relation queries the response was YES.
[2024-06-14 13:31:35,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100425 conditions, 11818 events. 7580/11818 cut-off events. For 704016/704045 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 77596 event pairs, 2211 based on Foata normal form. 46/11863 useless extension candidates. Maximal degree in co-relation 100265. Up to 10014 conditions per place.
[2024-06-14 13:31:35,549 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 487 selfloop transitions, 173 changer transitions 0/663 dead transitions.
[2024-06-14 13:31:35,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 663 transitions, 14149 flow
[2024-06-14 13:31:35,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:31:35,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:31:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions.
[2024-06-14 13:31:35,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48125
[2024-06-14 13:31:35,551 INFO L175 Difference]: Start difference. First operand has 322 places, 614 transitions, 12266 flow. Second operand 8 states and 154 transitions.
[2024-06-14 13:31:35,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 663 transitions, 14149 flow
[2024-06-14 13:31:37,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 663 transitions, 13814 flow, removed 64 selfloop flow, removed 5 redundant places.
[2024-06-14 13:31:37,905 INFO L231 Difference]: Finished difference. Result has 325 places, 618 transitions, 12380 flow
[2024-06-14 13:31:37,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=11931, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=12380, PETRI_PLACES=325, PETRI_TRANSITIONS=618}
[2024-06-14 13:31:37,906 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 284 predicate places.
[2024-06-14 13:31:37,906 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 618 transitions, 12380 flow
[2024-06-14 13:31:37,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:37,906 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:31:37,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:31:37,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81
[2024-06-14 13:31:37,907 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:31:37,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:31:37,907 INFO L85 PathProgramCache]: Analyzing trace with hash -217662975, now seen corresponding path program 2 times
[2024-06-14 13:31:37,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:31:37,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239357827]
[2024-06-14 13:31:37,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:31:37,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:31:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:31:38,740 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 13:31:38,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:31:38,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239357827]
[2024-06-14 13:31:38,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239357827] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:31:38,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:31:38,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:31:38,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569631182]
[2024-06-14 13:31:38,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:31:38,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:31:38,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:31:38,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:31:38,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:31:38,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:31:38,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 618 transitions, 12380 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:38,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:31:38,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:31:38,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:31:42,405 INFO L124 PetriNetUnfolderBase]: 7684/11980 cut-off events.
[2024-06-14 13:31:42,405 INFO L125 PetriNetUnfolderBase]: For 745137/745166 co-relation queries the response was YES.
[2024-06-14 13:31:42,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102716 conditions, 11980 events. 7684/11980 cut-off events. For 745137/745166 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 78879 event pairs, 2283 based on Foata normal form. 54/12033 useless extension candidates. Maximal degree in co-relation 102554. Up to 10618 conditions per place.
[2024-06-14 13:31:42,573 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 492 selfloop transitions, 164 changer transitions 0/659 dead transitions.
[2024-06-14 13:31:42,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 659 transitions, 14056 flow
[2024-06-14 13:31:42,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 13:31:42,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 13:31:42,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions.
[2024-06-14 13:31:42,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.465625
[2024-06-14 13:31:42,574 INFO L175 Difference]: Start difference. First operand has 325 places, 618 transitions, 12380 flow. Second operand 8 states and 149 transitions.
[2024-06-14 13:31:42,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 659 transitions, 14056 flow
[2024-06-14 13:31:45,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 659 transitions, 13815 flow, removed 23 selfloop flow, removed 4 redundant places.
[2024-06-14 13:31:45,075 INFO L231 Difference]: Finished difference. Result has 329 places, 620 transitions, 12526 flow
[2024-06-14 13:31:45,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=12145, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=12526, PETRI_PLACES=329, PETRI_TRANSITIONS=620}
[2024-06-14 13:31:45,076 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 288 predicate places.
[2024-06-14 13:31:45,076 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 620 transitions, 12526 flow
[2024-06-14 13:31:45,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:45,077 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:31:45,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:31:45,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82
[2024-06-14 13:31:45,077 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:31:45,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:31:45,077 INFO L85 PathProgramCache]: Analyzing trace with hash -875129365, now seen corresponding path program 4 times
[2024-06-14 13:31:45,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:31:45,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447604646]
[2024-06-14 13:31:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:31:45,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:31:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:31:46,071 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 13:31:46,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:31:46,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447604646]
[2024-06-14 13:31:46,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447604646] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:31:46,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:31:46,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:31:46,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53354350]
[2024-06-14 13:31:46,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:31:46,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:31:46,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:31:46,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:31:46,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:31:46,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:31:46,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 620 transitions, 12526 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:46,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:31:46,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:31:46,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:31:49,676 INFO L124 PetriNetUnfolderBase]: 7694/11992 cut-off events.
[2024-06-14 13:31:49,677 INFO L125 PetriNetUnfolderBase]: For 700350/700379 co-relation queries the response was YES.
[2024-06-14 13:31:49,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103395 conditions, 11992 events. 7694/11992 cut-off events. For 700350/700379 co-relation queries the response was YES. Maximal size of possible extension queue 702. Compared 78890 event pairs, 2297 based on Foata normal form. 28/12019 useless extension candidates. Maximal degree in co-relation 103231. Up to 11253 conditions per place.
[2024-06-14 13:31:49,855 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 531 selfloop transitions, 132 changer transitions 3/669 dead transitions.
[2024-06-14 13:31:49,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 669 transitions, 14468 flow
[2024-06-14 13:31:49,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:31:49,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:31:49,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 153 transitions.
[2024-06-14 13:31:49,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.425
[2024-06-14 13:31:49,856 INFO L175 Difference]: Start difference. First operand has 329 places, 620 transitions, 12526 flow. Second operand 9 states and 153 transitions.
[2024-06-14 13:31:49,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 669 transitions, 14468 flow
[2024-06-14 13:31:52,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 669 transitions, 14105 flow, removed 12 selfloop flow, removed 6 redundant places.
[2024-06-14 13:31:52,629 INFO L231 Difference]: Finished difference. Result has 334 places, 632 transitions, 12759 flow
[2024-06-14 13:31:52,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=12179, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12759, PETRI_PLACES=334, PETRI_TRANSITIONS=632}
[2024-06-14 13:31:52,629 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 293 predicate places.
[2024-06-14 13:31:52,630 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 632 transitions, 12759 flow
[2024-06-14 13:31:52,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:52,630 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:31:52,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:31:52,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83
[2024-06-14 13:31:52,630 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:31:52,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:31:52,631 INFO L85 PathProgramCache]: Analyzing trace with hash -594193109, now seen corresponding path program 3 times
[2024-06-14 13:31:52,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:31:52,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558231992]
[2024-06-14 13:31:52,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:31:52,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:31:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:31:53,654 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 13:31:53,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:31:53,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558231992]
[2024-06-14 13:31:53,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558231992] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:31:53,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:31:53,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 13:31:53,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284034571]
[2024-06-14 13:31:53,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:31:53,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 13:31:53,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:31:53,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 13:31:53,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-14 13:31:53,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:31:53,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 632 transitions, 12759 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:31:53,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:31:53,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:31:53,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:31:57,361 INFO L124 PetriNetUnfolderBase]: 7726/12056 cut-off events.
[2024-06-14 13:31:57,362 INFO L125 PetriNetUnfolderBase]: For 776642/776642 co-relation queries the response was YES.
[2024-06-14 13:31:57,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103641 conditions, 12056 events. 7726/12056 cut-off events. For 776642/776642 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 79426 event pairs, 2760 based on Foata normal form. 28/12083 useless extension candidates. Maximal degree in co-relation 103474. Up to 11408 conditions per place.
[2024-06-14 13:31:57,538 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 576 selfloop transitions, 85 changer transitions 0/664 dead transitions.
[2024-06-14 13:31:57,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 664 transitions, 14332 flow
[2024-06-14 13:31:57,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:31:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:31:57,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 155 transitions.
[2024-06-14 13:31:57,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556
[2024-06-14 13:31:57,540 INFO L175 Difference]: Start difference. First operand has 334 places, 632 transitions, 12759 flow. Second operand 9 states and 155 transitions.
[2024-06-14 13:31:57,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 664 transitions, 14332 flow
[2024-06-14 13:32:00,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 664 transitions, 14056 flow, removed 36 selfloop flow, removed 4 redundant places.
[2024-06-14 13:32:00,493 INFO L231 Difference]: Finished difference. Result has 339 places, 634 transitions, 12728 flow
[2024-06-14 13:32:00,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=12495, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12728, PETRI_PLACES=339, PETRI_TRANSITIONS=634}
[2024-06-14 13:32:00,494 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 298 predicate places.
[2024-06-14 13:32:00,494 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 634 transitions, 12728 flow
[2024-06-14 13:32:00,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:32:00,494 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:32:00,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:32:00,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84
[2024-06-14 13:32:00,495 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:32:00,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:32:00,495 INFO L85 PathProgramCache]: Analyzing trace with hash -597918131, now seen corresponding path program 5 times
[2024-06-14 13:32:00,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:32:00,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386016675]
[2024-06-14 13:32:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:32:00,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:32:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:32:01,240 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 13:32:01,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:32:01,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386016675]
[2024-06-14 13:32:01,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386016675] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:32:01,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:32:01,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:32:01,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435271835]
[2024-06-14 13:32:01,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:32:01,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:32:01,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:32:01,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:32:01,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:32:01,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:32:01,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 634 transitions, 12728 flow. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:32:01,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:32:01,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:32:01,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:32:04,746 INFO L124 PetriNetUnfolderBase]: 7756/12098 cut-off events.
[2024-06-14 13:32:04,746 INFO L125 PetriNetUnfolderBase]: For 741763/741763 co-relation queries the response was YES.
[2024-06-14 13:32:04,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103967 conditions, 12098 events. 7756/12098 cut-off events. For 741763/741763 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 79762 event pairs, 2774 based on Foata normal form. 6/12103 useless extension candidates. Maximal degree in co-relation 103799. Up to 11562 conditions per place.
[2024-06-14 13:32:04,928 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 573 selfloop transitions, 89 changer transitions 0/665 dead transitions.
[2024-06-14 13:32:04,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 665 transitions, 14260 flow
[2024-06-14 13:32:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:32:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:32:04,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 152 transitions.
[2024-06-14 13:32:04,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4222222222222222
[2024-06-14 13:32:04,930 INFO L175 Difference]: Start difference. First operand has 339 places, 634 transitions, 12728 flow. Second operand 9 states and 152 transitions.
[2024-06-14 13:32:04,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 665 transitions, 14260 flow
[2024-06-14 13:32:08,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 665 transitions, 14073 flow, removed 14 selfloop flow, removed 7 redundant places.
[2024-06-14 13:32:08,058 INFO L231 Difference]: Finished difference. Result has 341 places, 640 transitions, 12834 flow
[2024-06-14 13:32:08,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=12541, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12834, PETRI_PLACES=341, PETRI_TRANSITIONS=640}
[2024-06-14 13:32:08,059 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 300 predicate places.
[2024-06-14 13:32:08,059 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 640 transitions, 12834 flow
[2024-06-14 13:32:08,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:32:08,060 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:32:08,060 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:32:08,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85
[2024-06-14 13:32:08,060 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:32:08,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:32:08,060 INFO L85 PathProgramCache]: Analyzing trace with hash -598008341, now seen corresponding path program 6 times
[2024-06-14 13:32:08,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:32:08,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405943766]
[2024-06-14 13:32:08,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:32:08,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:32:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:32:08,902 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 13:32:08,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:32:08,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405943766]
[2024-06-14 13:32:08,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405943766] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:32:08,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:32:08,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 13:32:08,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331612007]
[2024-06-14 13:32:08,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:32:08,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 13:32:08,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:32:08,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 13:32:08,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-06-14 13:32:08,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:32:08,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 640 transitions, 12834 flow. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:32:08,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:32:08,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:32:08,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:32:12,280 INFO L124 PetriNetUnfolderBase]: 7766/12112 cut-off events.
[2024-06-14 13:32:12,280 INFO L125 PetriNetUnfolderBase]: For 745244/745244 co-relation queries the response was YES.
[2024-06-14 13:32:12,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103983 conditions, 12112 events. 7766/12112 cut-off events. For 745244/745244 co-relation queries the response was YES. Maximal size of possible extension queue 702. Compared 79967 event pairs, 2852 based on Foata normal form. 2/12113 useless extension candidates. Maximal degree in co-relation 103814. Up to 11829 conditions per place.
[2024-06-14 13:32:12,471 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 607 selfloop transitions, 53 changer transitions 0/663 dead transitions.
[2024-06-14 13:32:12,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 663 transitions, 14279 flow
[2024-06-14 13:32:12,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:32:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:32:12,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 143 transitions.
[2024-06-14 13:32:12,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3972222222222222
[2024-06-14 13:32:12,472 INFO L175 Difference]: Start difference. First operand has 341 places, 640 transitions, 12834 flow. Second operand 9 states and 143 transitions.
[2024-06-14 13:32:12,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 663 transitions, 14279 flow
[2024-06-14 13:32:15,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 663 transitions, 14069 flow, removed 22 selfloop flow, removed 7 redundant places.
[2024-06-14 13:32:15,087 INFO L231 Difference]: Finished difference. Result has 344 places, 644 transitions, 12811 flow
[2024-06-14 13:32:15,088 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=12624, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12811, PETRI_PLACES=344, PETRI_TRANSITIONS=644}
[2024-06-14 13:32:15,088 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 303 predicate places.
[2024-06-14 13:32:15,088 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 644 transitions, 12811 flow
[2024-06-14 13:32:15,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:32:15,089 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:32:15,089 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:32:15,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86
[2024-06-14 13:32:15,089 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:32:15,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:32:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash -251177915, now seen corresponding path program 1 times
[2024-06-14 13:32:15,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:32:15,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576372173]
[2024-06-14 13:32:15,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:32:15,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:32:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:32:16,125 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 13:32:16,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:32:16,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576372173]
[2024-06-14 13:32:16,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576372173] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:32:16,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:32:16,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 13:32:16,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599131707]
[2024-06-14 13:32:16,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:32:16,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 13:32:16,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:32:16,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 13:32:16,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2024-06-14 13:32:16,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-06-14 13:32:16,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 644 transitions, 12811 flow. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:32:16,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:32:16,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-06-14 13:32:16,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:32:20,367 INFO L124 PetriNetUnfolderBase]: 8864/13885 cut-off events.
[2024-06-14 13:32:20,367 INFO L125 PetriNetUnfolderBase]: For 1155349/1155368 co-relation queries the response was YES.
[2024-06-14 13:32:20,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121037 conditions, 13885 events. 8864/13885 cut-off events. For 1155349/1155368 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 92572 event pairs, 2124 based on Foata normal form. 64/13948 useless extension candidates. Maximal degree in co-relation 120866. Up to 8178 conditions per place.
[2024-06-14 13:32:20,575 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 382 selfloop transitions, 336 changer transitions 6/727 dead transitions.
[2024-06-14 13:32:20,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 727 transitions, 15510 flow
[2024-06-14 13:32:20,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 13:32:20,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 13:32:20,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 205 transitions.
[2024-06-14 13:32:20,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125
[2024-06-14 13:32:20,577 INFO L175 Difference]: Start difference. First operand has 344 places, 644 transitions, 12811 flow. Second operand 10 states and 205 transitions.
[2024-06-14 13:32:20,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 727 transitions, 15510 flow
[2024-06-14 13:32:24,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 727 transitions, 15413 flow, removed 13 selfloop flow, removed 5 redundant places.
[2024-06-14 13:32:24,103 INFO L231 Difference]: Finished difference. Result has 351 places, 647 transitions, 13477 flow
[2024-06-14 13:32:24,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=12714, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=330, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13477, PETRI_PLACES=351, PETRI_TRANSITIONS=647}
[2024-06-14 13:32:24,104 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 310 predicate places.
[2024-06-14 13:32:24,104 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 647 transitions, 13477 flow
[2024-06-14 13:32:24,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:32:24,104 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:32:24,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:32:24,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87
[2024-06-14 13:32:24,104 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] ===
[2024-06-14 13:32:24,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:32:24,105 INFO L85 PathProgramCache]: Analyzing trace with hash -244682795, now seen corresponding path program 2 times
[2024-06-14 13:32:24,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:32:24,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608010659]
[2024-06-14 13:32:24,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:32:24,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:32:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat