./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe006_power.opt-thin000_power.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/safe006_power.opt-thin000_power.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/safe006_power.opt-thin000_power.opt.i ./goblint.2024-05-21_14-57-05.files/protection/safe006_power.opt-thin000_power.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 12:57:29,523 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-06-14 12:57:29,563 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-06-14 12:57:29,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-06-14 12:57:29,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-06-14 12:57:29,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-06-14 12:57:29,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-06-14 12:57:29,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-06-14 12:57:29,605 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-06-14 12:57:29,608 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-06-14 12:57:29,608 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-06-14 12:57:29,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-06-14 12:57:29,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-06-14 12:57:29,610 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-06-14 12:57:29,610 INFO L153 SettingsManager]: * Use SBE=true
[2024-06-14 12:57:29,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-06-14 12:57:29,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-06-14 12:57:29,610 INFO L153 SettingsManager]: * sizeof long=4
[2024-06-14 12:57:29,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-06-14 12:57:29,610 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-06-14 12:57:29,611 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-06-14 12:57:29,611 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-06-14 12:57:29,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-06-14 12:57:29,612 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-06-14 12:57:29,612 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-06-14 12:57:29,612 INFO L153 SettingsManager]: * sizeof long double=12
[2024-06-14 12:57:29,612 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-06-14 12:57:29,612 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-06-14 12:57:29,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-06-14 12:57:29,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-06-14 12:57:29,613 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-06-14 12:57:29,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-06-14 12:57:29,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-06-14 12:57:29,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-06-14 12:57:29,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-06-14 12:57:29,614 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-06-14 12:57:29,614 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-06-14 12:57:29,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-06-14 12:57:29,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-06-14 12:57:29,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-06-14 12:57:29,614 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2024-06-14 12:57:29,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-06-14 12:57:29,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-06-14 12:57:29,615 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false
[2024-06-14 12:57:29,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-06-14 12:57:29,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-06-14 12:57:29,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-06-14 12:57:29,810 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-06-14 12:57:29,810 INFO L274 PluginConnector]: CDTParser initialized
[2024-06-14 12:57:29,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_power.opt-thin000_power.opt.i
[2024-06-14 12:57:30,753 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-06-14 12:57:30,970 INFO L384 CDTParser]: Found 1 translation units.
[2024-06-14 12:57:30,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_power.opt-thin000_power.opt.i
[2024-06-14 12:57:30,981 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3de450d3d/a67878217ae745399949a6f0cd66ae74/FLAG7bc639fa5
[2024-06-14 12:57:30,996 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3de450d3d/a67878217ae745399949a6f0cd66ae74
[2024-06-14 12:57:30,998 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-06-14 12:57:30,999 INFO L274 PluginConnector]: Witness Parser initialized
[2024-06-14 12:57:31,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/safe006_power.opt-thin000_power.opt.yml/witness.yml
[2024-06-14 12:57:31,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-06-14 12:57:31,174 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-06-14 12:57:31,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-06-14 12:57:31,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-06-14 12:57:31,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-06-14 12:57:31,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 12:57:30" (1/2) ...
[2024-06-14 12:57:31,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1b6c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:57:31, skipping insertion in model container
[2024-06-14 12:57:31,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 12:57:30" (1/2) ...
[2024-06-14 12:57:31,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@ff2ba21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 12:57:31, skipping insertion in model container
[2024-06-14 12:57:31,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 12:57:31" (2/2) ...
[2024-06-14 12:57:31,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1b6c36 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31, skipping insertion in model container
[2024-06-14 12:57:31,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 12:57:31" (2/2) ...
[2024-06-14 12:57:31,181 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness
[2024-06-14 12:57:31,257 INFO L95 edCorrectnessWitness]: Found the following entries in the witness:
[2024-06-14 12:57:31,258 INFO L97 edCorrectnessWitness]: Location invariant before [L828-L828] (((((((((((((((((((((((((((! multithreaded || ((0 <= x$w_buff0 && x$w_buff0 <= 1) && (x$w_buff0 == 0 || x$w_buff0 == 1))) && (! multithreaded || __unbuffered_p1_EAX$w_buff1_used == (_Bool)0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || __unbuffered_p1_EAX$w_buff0_used == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || __unbuffered_p1_EAX$w_buff1 == 0)) && (! multithreaded || __unbuffered_p1_EAX$w_buff0 == 0)) && (! multithreaded || (__unbuffered_p1_EAX$read_delayed_var == 0 || (((0 <= *__unbuffered_p1_EAX$read_delayed_var && *__unbuffered_p1_EAX$read_delayed_var <= 1) && __unbuffered_p1_EAX$read_delayed_var == & x) && (*__unbuffered_p1_EAX$read_delayed_var == 0 || *__unbuffered_p1_EAX$read_delayed_var == 1))))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= x$mem_tmp && x$mem_tmp <= 1) && (x$mem_tmp == 0 || x$mem_tmp == 1)))) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$flush_delayed == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || x$flush_delayed == (_Bool)0)) && (! multithreaded || ((0 <= x$w_buff1 && x$w_buff1 <= 1) && (x$w_buff1 == 0 || x$w_buff1 == 1)))) && (! multithreaded || __unbuffered_p1_EAX$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || __unbuffered_p1_EAX$mem_tmp == 0)
[2024-06-14 12:57:31,258 INFO L97 edCorrectnessWitness]: Location invariant before [L829-L829] (((((((((((((((((((((((((((! multithreaded || ((0 <= x$w_buff0 && x$w_buff0 <= 1) && (x$w_buff0 == 0 || x$w_buff0 == 1))) && (! multithreaded || __unbuffered_p1_EAX$w_buff1_used == (_Bool)0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || __unbuffered_p1_EAX$w_buff0_used == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || __unbuffered_p1_EAX$w_buff1 == 0)) && (! multithreaded || __unbuffered_p1_EAX$w_buff0 == 0)) && (! multithreaded || (__unbuffered_p1_EAX$read_delayed_var == 0 || (((0 <= *__unbuffered_p1_EAX$read_delayed_var && *__unbuffered_p1_EAX$read_delayed_var <= 1) && __unbuffered_p1_EAX$read_delayed_var == & x) && (*__unbuffered_p1_EAX$read_delayed_var == 0 || *__unbuffered_p1_EAX$read_delayed_var == 1))))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= x$mem_tmp && x$mem_tmp <= 1) && (x$mem_tmp == 0 || x$mem_tmp == 1)))) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || __unbuffered_p1_EAX$flush_delayed == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || x$flush_delayed == (_Bool)0)) && (! multithreaded || ((0 <= x$w_buff1 && x$w_buff1 <= 1) && (x$w_buff1 == 0 || x$w_buff1 == 1)))) && (! multithreaded || __unbuffered_p1_EAX$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || __unbuffered_p1_EAX$mem_tmp == 0)
[2024-06-14 12:57:31,258 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0
[2024-06-14 12:57:31,258 INFO L106 edCorrectnessWitness]: ghost_update [L826-L826] multithreaded = 1;
[2024-06-14 12:57:31,301 INFO L177 MainTranslator]: Built tables and reachable declarations
[2024-06-14 12:57:31,540 INFO L207 PostProcessor]: Analyzing one entry point: main
[2024-06-14 12:57:31,547 INFO L202 MainTranslator]: Completed pre-run
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
[2024-06-14 12:57:31,650 INFO L207 PostProcessor]: Analyzing one entry point: main
[2024-06-14 12:57:31,691 INFO L206 MainTranslator]: Completed translation
[2024-06-14 12:57:31,691 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31 WrapperNode
[2024-06-14 12:57:31,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-06-14 12:57:31,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-06-14 12:57:31,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-06-14 12:57:31,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-06-14 12:57:31,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,740 INFO L138 Inliner]: procedures = 174, calls = 67, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 215
[2024-06-14 12:57:31,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-06-14 12:57:31,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-06-14 12:57:31,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-06-14 12:57:31,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-06-14 12:57:31,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,772 INFO L175 MemorySlicer]: Split 34 memory accesses to 2 slices as follows [2, 32]. 94 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 5 writes are split as follows [0, 5].
[2024-06-14 12:57:31,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-06-14 12:57:31,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-06-14 12:57:31,804 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-06-14 12:57:31,804 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-06-14 12:57:31,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (1/1) ...
[2024-06-14 12:57:31,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-06-14 12:57:31,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-06-14 12:57:31,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-06-14 12:57:31,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-06-14 12:57:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-06-14 12:57:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-06-14 12:57:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-06-14 12:57:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-06-14 12:57:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-06-14 12:57:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-06-14 12:57:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2024-06-14 12:57:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2024-06-14 12:57:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2024-06-14 12:57:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2024-06-14 12:57:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-06-14 12:57:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-06-14 12:57:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-06-14 12:57:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-06-14 12:57:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-06-14 12:57:31,872 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2024-06-14 12:57:32,019 INFO L244 CfgBuilder]: Building ICFG
[2024-06-14 12:57:32,020 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-06-14 12:57:32,365 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program.
[2024-06-14 12:57:32,365 INFO L293 CfgBuilder]: Performing block encoding
[2024-06-14 12:57:32,686 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-06-14 12:57:32,686 INFO L320 CfgBuilder]: Removed 0 assume(true) statements.
[2024-06-14 12:57:32,686 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 12:57:32 BoogieIcfgContainer
[2024-06-14 12:57:32,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-06-14 12:57:32,688 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-06-14 12:57:32,688 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-06-14 12:57:32,691 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-06-14 12:57:32,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 12:57:30" (1/4) ...
[2024-06-14 12:57:32,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6161a7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 12:57:32, skipping insertion in model container
[2024-06-14 12:57:32,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 12:57:31" (2/4) ...
[2024-06-14 12:57:32,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6161a7c9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 12:57:32, skipping insertion in model container
[2024-06-14 12:57:32,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 12:57:31" (3/4) ...
[2024-06-14 12:57:32,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6161a7c9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 12:57:32, skipping insertion in model container
[2024-06-14 12:57:32,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 12:57:32" (4/4) ...
[2024-06-14 12:57:32,694 INFO L112 eAbstractionObserver]: Analyzing ICFG safe006_power.opt-thin000_power.opt.i
[2024-06-14 12:57:32,707 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-06-14 12:57:32,707 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-06-14 12:57:32,707 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-06-14 12:57:32,758 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-06-14 12:57:32,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 31 transitions, 70 flow
[2024-06-14 12:57:32,814 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events.
[2024-06-14 12:57:32,814 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-06-14 12:57:32,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 29 events. 0/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.
[2024-06-14 12:57:32,816 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 31 transitions, 70 flow
[2024-06-14 12:57:32,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 23 transitions, 52 flow
[2024-06-14 12:57:32,829 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-06-14 12:57:32,835 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;@68299509, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-06-14 12:57:32,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-06-14 12:57:32,840 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-06-14 12:57:32,840 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events.
[2024-06-14 12:57:32,840 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-06-14 12:57:32,841 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:32,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:32,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:32,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:32,846 INFO L85 PathProgramCache]: Analyzing trace with hash 848713922, now seen corresponding path program 1 times
[2024-06-14 12:57:32,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:32,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242873945]
[2024-06-14 12:57:32,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:32,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:34,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:57:34,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:34,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242873945]
[2024-06-14 12:57:34,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242873945] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:34,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:34,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-06-14 12:57:34,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727450387]
[2024-06-14 12:57:34,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:34,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-06-14 12:57:34,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:34,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-06-14 12:57:34,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-06-14 12:57:34,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 31
[2024-06-14 12:57:34,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:34,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:34,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 31
[2024-06-14 12:57:34,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:34,339 INFO L124 PetriNetUnfolderBase]: 135/254 cut-off events.
[2024-06-14 12:57:34,340 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-06-14 12:57:34,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 254 events. 135/254 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 868 event pairs, 75 based on Foata normal form. 1/250 useless extension candidates. Maximal degree in co-relation 507. Up to 243 conditions per place.
[2024-06-14 12:57:34,343 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 24 selfloop transitions, 3 changer transitions 0/30 dead transitions.
[2024-06-14 12:57:34,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 123 flow
[2024-06-14 12:57:34,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-06-14 12:57:34,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-06-14 12:57:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions.
[2024-06-14 12:57:34,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4731182795698925
[2024-06-14 12:57:34,353 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 52 flow. Second operand 3 states and 44 transitions.
[2024-06-14 12:57:34,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 123 flow
[2024-06-14 12:57:34,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-06-14 12:57:34,356 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 71 flow
[2024-06-14 12:57:34,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=31, PETRI_TRANSITIONS=25}
[2024-06-14 12:57:34,360 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places.
[2024-06-14 12:57:34,360 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 71 flow
[2024-06-14 12:57:34,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:34,360 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:34,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:34,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-06-14 12:57:34,361 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:34,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:34,361 INFO L85 PathProgramCache]: Analyzing trace with hash -434939843, now seen corresponding path program 1 times
[2024-06-14 12:57:34,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:34,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338722136]
[2024-06-14 12:57:34,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:34,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:57:35,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:35,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338722136]
[2024-06-14 12:57:35,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338722136] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:35,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:35,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-06-14 12:57:35,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039010329]
[2024-06-14 12:57:35,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:35,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-06-14 12:57:35,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:35,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-06-14 12:57:35,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-06-14 12:57:35,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:35,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:35,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:35,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:35,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:35,650 INFO L124 PetriNetUnfolderBase]: 161/299 cut-off events.
[2024-06-14 12:57:35,651 INFO L125 PetriNetUnfolderBase]: For 57/59 co-relation queries the response was YES.
[2024-06-14 12:57:35,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 696 conditions, 299 events. 161/299 cut-off events. For 57/59 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1026 event pairs, 66 based on Foata normal form. 4/303 useless extension candidates. Maximal degree in co-relation 681. Up to 266 conditions per place.
[2024-06-14 12:57:35,653 INFO L140 encePairwiseOnDemand]: 25/31 looper letters, 31 selfloop transitions, 5 changer transitions 0/38 dead transitions.
[2024-06-14 12:57:35,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 38 transitions, 175 flow
[2024-06-14 12:57:35,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-06-14 12:57:35,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-06-14 12:57:35,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions.
[2024-06-14 12:57:35,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43548387096774194
[2024-06-14 12:57:35,655 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 71 flow. Second operand 4 states and 54 transitions.
[2024-06-14 12:57:35,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 38 transitions, 175 flow
[2024-06-14 12:57:35,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-06-14 12:57:35,656 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 95 flow
[2024-06-14 12:57:35,656 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=34, PETRI_TRANSITIONS=27}
[2024-06-14 12:57:35,657 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places.
[2024-06-14 12:57:35,657 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 95 flow
[2024-06-14 12:57:35,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:35,657 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:35,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:35,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-06-14 12:57:35,658 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:35,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:35,658 INFO L85 PathProgramCache]: Analyzing trace with hash -339944094, now seen corresponding path program 1 times
[2024-06-14 12:57:35,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:35,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185400069]
[2024-06-14 12:57:35,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:35,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:37,220 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 12:57:37,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:37,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185400069]
[2024-06-14 12:57:37,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185400069] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:37,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:37,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 12:57:37,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557359176]
[2024-06-14 12:57:37,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:37,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 12:57:37,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:37,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 12:57:37,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-06-14 12:57:37,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:37,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 95 flow. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:37,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:37,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:37,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:37,409 INFO L124 PetriNetUnfolderBase]: 158/294 cut-off events.
[2024-06-14 12:57:37,409 INFO L125 PetriNetUnfolderBase]: For 173/177 co-relation queries the response was YES.
[2024-06-14 12:57:37,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 294 events. 158/294 cut-off events. For 173/177 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 990 event pairs, 48 based on Foata normal form. 6/300 useless extension candidates. Maximal degree in co-relation 741. Up to 250 conditions per place.
[2024-06-14 12:57:37,412 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 36 selfloop transitions, 7 changer transitions 0/45 dead transitions.
[2024-06-14 12:57:37,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 45 transitions, 227 flow
[2024-06-14 12:57:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 12:57:37,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 12:57:37,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions.
[2024-06-14 12:57:37,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41935483870967744
[2024-06-14 12:57:37,413 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 95 flow. Second operand 5 states and 65 transitions.
[2024-06-14 12:57:37,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 45 transitions, 227 flow
[2024-06-14 12:57:37,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 218 flow, removed 1 selfloop flow, removed 2 redundant places.
[2024-06-14 12:57:37,415 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 119 flow
[2024-06-14 12:57:37,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=37, PETRI_TRANSITIONS=29}
[2024-06-14 12:57:37,416 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places.
[2024-06-14 12:57:37,416 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 119 flow
[2024-06-14 12:57:37,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:37,416 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:37,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:37,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-06-14 12:57:37,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:37,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:37,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1948331110, now seen corresponding path program 1 times
[2024-06-14 12:57:37,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:37,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333461396]
[2024-06-14 12:57:37,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:37,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:38,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:57:38,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:38,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333461396]
[2024-06-14 12:57:38,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333461396] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:38,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:38,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 12:57:38,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976701441]
[2024-06-14 12:57:38,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:38,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 12:57:38,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:38,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 12:57:38,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-06-14 12:57:38,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:38,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 119 flow. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:38,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:38,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:38,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:39,100 INFO L124 PetriNetUnfolderBase]: 154/286 cut-off events.
[2024-06-14 12:57:39,100 INFO L125 PetriNetUnfolderBase]: For 275/279 co-relation queries the response was YES.
[2024-06-14 12:57:39,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 286 events. 154/286 cut-off events. For 275/279 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 958 event pairs, 29 based on Foata normal form. 8/294 useless extension candidates. Maximal degree in co-relation 782. Up to 220 conditions per place.
[2024-06-14 12:57:39,103 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 36 selfloop transitions, 8 changer transitions 0/46 dead transitions.
[2024-06-14 12:57:39,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 241 flow
[2024-06-14 12:57:39,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:57:39,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:57:39,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions.
[2024-06-14 12:57:39,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3763440860215054
[2024-06-14 12:57:39,105 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 119 flow. Second operand 6 states and 70 transitions.
[2024-06-14 12:57:39,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 241 flow
[2024-06-14 12:57:39,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 46 transitions, 226 flow, removed 2 selfloop flow, removed 3 redundant places.
[2024-06-14 12:57:39,108 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 116 flow
[2024-06-14 12:57:39,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=39, PETRI_TRANSITIONS=28}
[2024-06-14 12:57:39,109 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places.
[2024-06-14 12:57:39,109 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 116 flow
[2024-06-14 12:57:39,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:39,110 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:39,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:39,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-06-14 12:57:39,110 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:39,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:39,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1196659977, now seen corresponding path program 1 times
[2024-06-14 12:57:39,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:39,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069119779]
[2024-06-14 12:57:39,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:39,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:57:40,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069119779]
[2024-06-14 12:57:40,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069119779] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:40,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:40,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 12:57:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181575380]
[2024-06-14 12:57:40,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:40,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 12:57:40,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:40,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 12:57:40,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-06-14 12:57:40,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 31
[2024-06-14 12:57:40,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 116 flow. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:40,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:40,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 31
[2024-06-14 12:57:40,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:40,855 INFO L124 PetriNetUnfolderBase]: 123/233 cut-off events.
[2024-06-14 12:57:40,855 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES.
[2024-06-14 12:57:40,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 233 events. 123/233 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 774 event pairs, 34 based on Foata normal form. 1/233 useless extension candidates. Maximal degree in co-relation 685. Up to 219 conditions per place.
[2024-06-14 12:57:40,856 INFO L140 encePairwiseOnDemand]: 25/31 looper letters, 27 selfloop transitions, 6 changer transitions 0/36 dead transitions.
[2024-06-14 12:57:40,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 36 transitions, 202 flow
[2024-06-14 12:57:40,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 12:57:40,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 12:57:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions.
[2024-06-14 12:57:40,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3548387096774194
[2024-06-14 12:57:40,862 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 116 flow. Second operand 5 states and 55 transitions.
[2024-06-14 12:57:40,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 36 transitions, 202 flow
[2024-06-14 12:57:40,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 36 transitions, 182 flow, removed 3 selfloop flow, removed 4 redundant places.
[2024-06-14 12:57:40,868 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 123 flow
[2024-06-14 12:57:40,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=123, PETRI_PLACES=40, PETRI_TRANSITIONS=30}
[2024-06-14 12:57:40,870 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 10 predicate places.
[2024-06-14 12:57:40,873 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 123 flow
[2024-06-14 12:57:40,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:40,874 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:40,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:40,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-06-14 12:57:40,874 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:40,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:40,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1572547753, now seen corresponding path program 1 times
[2024-06-14 12:57:40,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:40,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800616603]
[2024-06-14 12:57:40,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:40,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:57:42,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:42,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800616603]
[2024-06-14 12:57:42,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800616603] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:42,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:42,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 12:57:42,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113970403]
[2024-06-14 12:57:42,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:42,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 12:57:42,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:42,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 12:57:42,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-06-14 12:57:42,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:42,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 123 flow. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:42,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:42,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:42,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:42,942 INFO L124 PetriNetUnfolderBase]: 146/273 cut-off events.
[2024-06-14 12:57:42,942 INFO L125 PetriNetUnfolderBase]: For 460/460 co-relation queries the response was YES.
[2024-06-14 12:57:42,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 837 conditions, 273 events. 146/273 cut-off events. For 460/460 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 893 event pairs, 35 based on Foata normal form. 2/275 useless extension candidates. Maximal degree in co-relation 816. Up to 254 conditions per place.
[2024-06-14 12:57:42,943 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 34 selfloop transitions, 8 changer transitions 0/44 dead transitions.
[2024-06-14 12:57:42,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 44 transitions, 245 flow
[2024-06-14 12:57:42,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:57:42,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:57:42,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 59 transitions.
[2024-06-14 12:57:42,946 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3172043010752688
[2024-06-14 12:57:42,946 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 123 flow. Second operand 6 states and 59 transitions.
[2024-06-14 12:57:42,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 44 transitions, 245 flow
[2024-06-14 12:57:42,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 232 flow, removed 1 selfloop flow, removed 3 redundant places.
[2024-06-14 12:57:42,948 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 165 flow
[2024-06-14 12:57:42,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=165, PETRI_PLACES=45, PETRI_TRANSITIONS=36}
[2024-06-14 12:57:42,948 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 15 predicate places.
[2024-06-14 12:57:42,949 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 165 flow
[2024-06-14 12:57:42,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:42,949 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:42,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:42,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-06-14 12:57:42,949 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:42,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:42,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1644630610, now seen corresponding path program 1 times
[2024-06-14 12:57:42,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:42,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693153514]
[2024-06-14 12:57:42,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:42,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:45,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:57:45,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:45,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693153514]
[2024-06-14 12:57:45,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693153514] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:45,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:45,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 12:57:45,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167652517]
[2024-06-14 12:57:45,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:45,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 12:57:45,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:45,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 12:57:45,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-06-14 12:57:45,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:45,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 165 flow. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:45,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:45,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:45,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:45,313 INFO L124 PetriNetUnfolderBase]: 149/279 cut-off events.
[2024-06-14 12:57:45,314 INFO L125 PetriNetUnfolderBase]: For 583/585 co-relation queries the response was YES.
[2024-06-14 12:57:45,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 279 events. 149/279 cut-off events. For 583/585 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 928 event pairs, 39 based on Foata normal form. 3/282 useless extension candidates. Maximal degree in co-relation 904. Up to 243 conditions per place.
[2024-06-14 12:57:45,315 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 38 selfloop transitions, 9 changer transitions 0/49 dead transitions.
[2024-06-14 12:57:45,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 49 transitions, 293 flow
[2024-06-14 12:57:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:57:45,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:57:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 63 transitions.
[2024-06-14 12:57:45,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3387096774193548
[2024-06-14 12:57:45,319 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 165 flow. Second operand 6 states and 63 transitions.
[2024-06-14 12:57:45,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 49 transitions, 293 flow
[2024-06-14 12:57:45,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 49 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-06-14 12:57:45,322 INFO L231 Difference]: Finished difference. Result has 50 places, 38 transitions, 198 flow
[2024-06-14 12:57:45,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=198, PETRI_PLACES=50, PETRI_TRANSITIONS=38}
[2024-06-14 12:57:45,323 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 20 predicate places.
[2024-06-14 12:57:45,323 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 38 transitions, 198 flow
[2024-06-14 12:57:45,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:45,323 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:45,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:45,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-06-14 12:57:45,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:45,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:45,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1284034552, now seen corresponding path program 1 times
[2024-06-14 12:57:45,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:45,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270643531]
[2024-06-14 12:57:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:45,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:57:46,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:46,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270643531]
[2024-06-14 12:57:46,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270643531] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:46,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:46,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 12:57:46,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988170605]
[2024-06-14 12:57:46,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:46,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 12:57:46,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:46,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 12:57:46,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-06-14 12:57:46,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:46,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 198 flow. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:46,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:46,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:46,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:47,600 INFO L124 PetriNetUnfolderBase]: 155/289 cut-off events.
[2024-06-14 12:57:47,600 INFO L125 PetriNetUnfolderBase]: For 818/820 co-relation queries the response was YES.
[2024-06-14 12:57:47,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 289 events. 155/289 cut-off events. For 818/820 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 953 event pairs, 37 based on Foata normal form. 4/293 useless extension candidates. Maximal degree in co-relation 1013. Up to 247 conditions per place.
[2024-06-14 12:57:47,604 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 34 selfloop transitions, 12 changer transitions 0/48 dead transitions.
[2024-06-14 12:57:47,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 48 transitions, 318 flow
[2024-06-14 12:57:47,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:57:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:57:47,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions.
[2024-06-14 12:57:47,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333
[2024-06-14 12:57:47,606 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 198 flow. Second operand 6 states and 62 transitions.
[2024-06-14 12:57:47,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 48 transitions, 318 flow
[2024-06-14 12:57:47,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 48 transitions, 299 flow, removed 2 selfloop flow, removed 4 redundant places.
[2024-06-14 12:57:47,609 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 225 flow
[2024-06-14 12:57:47,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=52, PETRI_TRANSITIONS=40}
[2024-06-14 12:57:47,611 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 22 predicate places.
[2024-06-14 12:57:47,611 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 225 flow
[2024-06-14 12:57:47,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:47,612 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:47,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:47,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-06-14 12:57:47,612 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:47,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:47,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1298334418, now seen corresponding path program 2 times
[2024-06-14 12:57:47,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:47,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738036110]
[2024-06-14 12:57:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:47,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:57:49,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:49,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738036110]
[2024-06-14 12:57:49,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738036110] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:49,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:49,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 12:57:49,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073478850]
[2024-06-14 12:57:49,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:49,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 12:57:49,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:49,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 12:57:49,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-06-14 12:57:49,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:49,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 225 flow. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:49,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:49,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:49,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:49,587 INFO L124 PetriNetUnfolderBase]: 153/286 cut-off events.
[2024-06-14 12:57:49,587 INFO L125 PetriNetUnfolderBase]: For 964/966 co-relation queries the response was YES.
[2024-06-14 12:57:49,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1092 conditions, 286 events. 153/286 cut-off events. For 964/966 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 950 event pairs, 40 based on Foata normal form. 3/289 useless extension candidates. Maximal degree in co-relation 1064. Up to 253 conditions per place.
[2024-06-14 12:57:49,589 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 37 selfloop transitions, 10 changer transitions 0/49 dead transitions.
[2024-06-14 12:57:49,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 49 transitions, 347 flow
[2024-06-14 12:57:49,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 12:57:49,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 12:57:49,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions.
[2024-06-14 12:57:49,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3225806451612903
[2024-06-14 12:57:49,590 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 225 flow. Second operand 6 states and 60 transitions.
[2024-06-14 12:57:49,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 49 transitions, 347 flow
[2024-06-14 12:57:49,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 321 flow, removed 4 selfloop flow, removed 4 redundant places.
[2024-06-14 12:57:49,592 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 240 flow
[2024-06-14 12:57:49,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=240, PETRI_PLACES=54, PETRI_TRANSITIONS=42}
[2024-06-14 12:57:49,593 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places.
[2024-06-14 12:57:49,593 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 240 flow
[2024-06-14 12:57:49,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:49,593 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:49,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:49,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-06-14 12:57:49,594 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:49,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:49,596 INFO L85 PathProgramCache]: Analyzing trace with hash -610051192, now seen corresponding path program 2 times
[2024-06-14 12:57:49,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:49,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624827120]
[2024-06-14 12:57:49,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:49,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:51,197 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 12:57:51,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:51,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624827120]
[2024-06-14 12:57:51,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624827120] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:51,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:51,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 12:57:51,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911889601]
[2024-06-14 12:57:51,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:51,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 12:57:51,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:51,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 12:57:51,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-06-14 12:57:51,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:51,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 240 flow. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:51,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:51,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:51,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:51,752 INFO L124 PetriNetUnfolderBase]: 149/280 cut-off events.
[2024-06-14 12:57:51,752 INFO L125 PetriNetUnfolderBase]: For 969/971 co-relation queries the response was YES.
[2024-06-14 12:57:51,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 280 events. 149/280 cut-off events. For 969/971 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 924 event pairs, 37 based on Foata normal form. 4/284 useless extension candidates. Maximal degree in co-relation 1027. Up to 230 conditions per place.
[2024-06-14 12:57:51,754 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 38 selfloop transitions, 14 changer transitions 0/54 dead transitions.
[2024-06-14 12:57:51,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 54 transitions, 378 flow
[2024-06-14 12:57:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:57:51,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:57:51,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 70 transitions.
[2024-06-14 12:57:51,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3225806451612903
[2024-06-14 12:57:51,755 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 240 flow. Second operand 7 states and 70 transitions.
[2024-06-14 12:57:51,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 54 transitions, 378 flow
[2024-06-14 12:57:51,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 353 flow, removed 4 selfloop flow, removed 4 redundant places.
[2024-06-14 12:57:51,758 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 264 flow
[2024-06-14 12:57:51,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=264, PETRI_PLACES=57, PETRI_TRANSITIONS=44}
[2024-06-14 12:57:51,758 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 27 predicate places.
[2024-06-14 12:57:51,758 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 264 flow
[2024-06-14 12:57:51,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:51,759 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:51,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:51,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-06-14 12:57:51,759 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:51,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:51,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1467132856, now seen corresponding path program 1 times
[2024-06-14 12:57:51,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:51,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11419331]
[2024-06-14 12:57:51,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:51,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:57:53,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:53,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11419331]
[2024-06-14 12:57:53,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11419331] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:53,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:53,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:57:53,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559761721]
[2024-06-14 12:57:53,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:53,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:57:53,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:53,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:57:53,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:57:53,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:53,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 264 flow. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:53,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:53,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:53,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:54,339 INFO L124 PetriNetUnfolderBase]: 146/274 cut-off events.
[2024-06-14 12:57:54,339 INFO L125 PetriNetUnfolderBase]: For 1095/1095 co-relation queries the response was YES.
[2024-06-14 12:57:54,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1081 conditions, 274 events. 146/274 cut-off events. For 1095/1095 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 873 event pairs, 31 based on Foata normal form. 2/276 useless extension candidates. Maximal degree in co-relation 1051. Up to 249 conditions per place.
[2024-06-14 12:57:54,341 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 43 selfloop transitions, 9 changer transitions 0/54 dead transitions.
[2024-06-14 12:57:54,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 390 flow
[2024-06-14 12:57:54,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:57:54,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:57:54,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 65 transitions.
[2024-06-14 12:57:54,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2995391705069124
[2024-06-14 12:57:54,342 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 264 flow. Second operand 7 states and 65 transitions.
[2024-06-14 12:57:54,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 390 flow
[2024-06-14 12:57:54,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 54 transitions, 357 flow, removed 4 selfloop flow, removed 5 redundant places.
[2024-06-14 12:57:54,345 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 253 flow
[2024-06-14 12:57:54,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=253, PETRI_PLACES=59, PETRI_TRANSITIONS=44}
[2024-06-14 12:57:54,345 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 29 predicate places.
[2024-06-14 12:57:54,345 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 253 flow
[2024-06-14 12:57:54,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:54,346 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:54,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:54,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-06-14 12:57:54,346 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:54,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:54,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1938523303, now seen corresponding path program 1 times
[2024-06-14 12:57:54,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:54,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42669661]
[2024-06-14 12:57:54,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:54,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:56,079 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 12:57:56,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:56,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42669661]
[2024-06-14 12:57:56,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42669661] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:56,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:56,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:57:56,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374007978]
[2024-06-14 12:57:56,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:56,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:57:56,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:56,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:57:56,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:57:56,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:56,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 253 flow. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:56,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:56,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:56,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:56,530 INFO L124 PetriNetUnfolderBase]: 154/288 cut-off events.
[2024-06-14 12:57:56,531 INFO L125 PetriNetUnfolderBase]: For 1331/1333 co-relation queries the response was YES.
[2024-06-14 12:57:56,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 288 events. 154/288 cut-off events. For 1331/1333 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 959 event pairs, 39 based on Foata normal form. 3/291 useless extension candidates. Maximal degree in co-relation 1111. Up to 226 conditions per place.
[2024-06-14 12:57:56,532 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 47 selfloop transitions, 16 changer transitions 0/65 dead transitions.
[2024-06-14 12:57:56,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 65 transitions, 463 flow
[2024-06-14 12:57:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:57:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:57:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 78 transitions.
[2024-06-14 12:57:56,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35944700460829493
[2024-06-14 12:57:56,534 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 253 flow. Second operand 7 states and 78 transitions.
[2024-06-14 12:57:56,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 65 transitions, 463 flow
[2024-06-14 12:57:56,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 65 transitions, 440 flow, removed 1 selfloop flow, removed 6 redundant places.
[2024-06-14 12:57:56,536 INFO L231 Difference]: Finished difference. Result has 60 places, 48 transitions, 295 flow
[2024-06-14 12:57:56,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=295, PETRI_PLACES=60, PETRI_TRANSITIONS=48}
[2024-06-14 12:57:56,537 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 30 predicate places.
[2024-06-14 12:57:56,537 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 295 flow
[2024-06-14 12:57:56,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:56,537 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:56,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:56,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-06-14 12:57:56,538 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:56,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:56,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1597378823, now seen corresponding path program 2 times
[2024-06-14 12:57:56,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:56,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776250]
[2024-06-14 12:57:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:56,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:57:58,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:57:58,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:57:58,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776250]
[2024-06-14 12:57:58,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776250] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:57:58,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:57:58,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:57:58,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445573179]
[2024-06-14 12:57:58,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:57:58,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:57:58,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:57:58,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:57:58,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:57:59,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:57:59,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 295 flow. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:59,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:57:59,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:57:59,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:57:59,384 INFO L124 PetriNetUnfolderBase]: 152/285 cut-off events.
[2024-06-14 12:57:59,385 INFO L125 PetriNetUnfolderBase]: For 1509/1511 co-relation queries the response was YES.
[2024-06-14 12:57:59,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 285 events. 152/285 cut-off events. For 1509/1511 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 945 event pairs, 37 based on Foata normal form. 3/288 useless extension candidates. Maximal degree in co-relation 1142. Up to 246 conditions per place.
[2024-06-14 12:57:59,386 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 49 selfloop transitions, 11 changer transitions 0/62 dead transitions.
[2024-06-14 12:57:59,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 62 transitions, 459 flow
[2024-06-14 12:57:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:57:59,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:57:59,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 70 transitions.
[2024-06-14 12:57:59,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3225806451612903
[2024-06-14 12:57:59,388 INFO L175 Difference]: Start difference. First operand has 60 places, 48 transitions, 295 flow. Second operand 7 states and 70 transitions.
[2024-06-14 12:57:59,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 62 transitions, 459 flow
[2024-06-14 12:57:59,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 62 transitions, 438 flow, removed 4 selfloop flow, removed 3 redundant places.
[2024-06-14 12:57:59,391 INFO L231 Difference]: Finished difference. Result has 64 places, 50 transitions, 321 flow
[2024-06-14 12:57:59,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=321, PETRI_PLACES=64, PETRI_TRANSITIONS=50}
[2024-06-14 12:57:59,391 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 34 predicate places.
[2024-06-14 12:57:59,391 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 50 transitions, 321 flow
[2024-06-14 12:57:59,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:57:59,392 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:57:59,392 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:57:59,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-06-14 12:57:59,392 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:57:59,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:57:59,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1597378668, now seen corresponding path program 1 times
[2024-06-14 12:57:59,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:57:59,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990046392]
[2024-06-14 12:57:59,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:57:59,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:57:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:01,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:01,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:01,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990046392]
[2024-06-14 12:58:01,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990046392] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:01,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:01,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:58:01,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162916686]
[2024-06-14 12:58:01,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:01,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:58:01,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:58:01,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:58:01,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:01,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 50 transitions, 321 flow. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:01,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:01,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:01,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:02,148 INFO L124 PetriNetUnfolderBase]: 158/295 cut-off events.
[2024-06-14 12:58:02,148 INFO L125 PetriNetUnfolderBase]: For 1893/1895 co-relation queries the response was YES.
[2024-06-14 12:58:02,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1264 conditions, 295 events. 158/295 cut-off events. For 1893/1895 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 992 event pairs, 36 based on Foata normal form. 4/299 useless extension candidates. Maximal degree in co-relation 1231. Up to 253 conditions per place.
[2024-06-14 12:58:02,150 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 52 selfloop transitions, 11 changer transitions 0/65 dead transitions.
[2024-06-14 12:58:02,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 491 flow
[2024-06-14 12:58:02,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:58:02,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:58:02,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 71 transitions.
[2024-06-14 12:58:02,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3271889400921659
[2024-06-14 12:58:02,151 INFO L175 Difference]: Start difference. First operand has 64 places, 50 transitions, 321 flow. Second operand 7 states and 71 transitions.
[2024-06-14 12:58:02,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 491 flow
[2024-06-14 12:58:02,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 65 transitions, 460 flow, removed 6 selfloop flow, removed 5 redundant places.
[2024-06-14 12:58:02,154 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 335 flow
[2024-06-14 12:58:02,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=335, PETRI_PLACES=66, PETRI_TRANSITIONS=52}
[2024-06-14 12:58:02,155 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 36 predicate places.
[2024-06-14 12:58:02,155 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 335 flow
[2024-06-14 12:58:02,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:02,155 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:02,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:58:02,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-06-14 12:58:02,155 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:02,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:02,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1150369673, now seen corresponding path program 3 times
[2024-06-14 12:58:02,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:02,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441445936]
[2024-06-14 12:58:02,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:02,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:03,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:03,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:03,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441445936]
[2024-06-14 12:58:03,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441445936] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:03,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:03,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:58:03,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072853817]
[2024-06-14 12:58:03,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:03,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:58:03,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:03,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:58:03,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:58:03,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:03,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 335 flow. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:03,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:03,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:03,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:04,223 INFO L124 PetriNetUnfolderBase]: 156/292 cut-off events.
[2024-06-14 12:58:04,223 INFO L125 PetriNetUnfolderBase]: For 1990/1992 co-relation queries the response was YES.
[2024-06-14 12:58:04,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1283 conditions, 292 events. 156/292 cut-off events. For 1990/1992 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 985 event pairs, 36 based on Foata normal form. 3/295 useless extension candidates. Maximal degree in co-relation 1249. Up to 256 conditions per place.
[2024-06-14 12:58:04,225 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 46 selfloop transitions, 12 changer transitions 0/60 dead transitions.
[2024-06-14 12:58:04,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 60 transitions, 469 flow
[2024-06-14 12:58:04,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:58:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:58:04,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 67 transitions.
[2024-06-14 12:58:04,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3087557603686636
[2024-06-14 12:58:04,227 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 335 flow. Second operand 7 states and 67 transitions.
[2024-06-14 12:58:04,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 60 transitions, 469 flow
[2024-06-14 12:58:04,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 60 transitions, 434 flow, removed 8 selfloop flow, removed 5 redundant places.
[2024-06-14 12:58:04,230 INFO L231 Difference]: Finished difference. Result has 68 places, 52 transitions, 329 flow
[2024-06-14 12:58:04,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=329, PETRI_PLACES=68, PETRI_TRANSITIONS=52}
[2024-06-14 12:58:04,230 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 38 predicate places.
[2024-06-14 12:58:04,231 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 52 transitions, 329 flow
[2024-06-14 12:58:04,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:04,231 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:04,231 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:58:04,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-06-14 12:58:04,231 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:04,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:04,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1593659598, now seen corresponding path program 2 times
[2024-06-14 12:58:04,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:04,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721738913]
[2024-06-14 12:58:04,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:04,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:05,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:05,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721738913]
[2024-06-14 12:58:05,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721738913] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:05,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:05,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:58:05,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598337373]
[2024-06-14 12:58:05,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:05,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:58:05,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:05,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:58:05,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:58:05,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:05,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 52 transitions, 329 flow. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:05,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:05,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:05,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:06,441 INFO L124 PetriNetUnfolderBase]: 172/318 cut-off events.
[2024-06-14 12:58:06,441 INFO L125 PetriNetUnfolderBase]: For 2586/2588 co-relation queries the response was YES.
[2024-06-14 12:58:06,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1419 conditions, 318 events. 172/318 cut-off events. For 2586/2588 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1092 event pairs, 34 based on Foata normal form. 4/322 useless extension candidates. Maximal degree in co-relation 1384. Up to 264 conditions per place.
[2024-06-14 12:58:06,443 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 52 selfloop transitions, 17 changer transitions 0/71 dead transitions.
[2024-06-14 12:58:06,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 71 transitions, 571 flow
[2024-06-14 12:58:06,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:06,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:06,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 79 transitions.
[2024-06-14 12:58:06,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3185483870967742
[2024-06-14 12:58:06,445 INFO L175 Difference]: Start difference. First operand has 68 places, 52 transitions, 329 flow. Second operand 8 states and 79 transitions.
[2024-06-14 12:58:06,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 71 transitions, 571 flow
[2024-06-14 12:58:06,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 71 transitions, 542 flow, removed 1 selfloop flow, removed 6 redundant places.
[2024-06-14 12:58:06,448 INFO L231 Difference]: Finished difference. Result has 71 places, 59 transitions, 404 flow
[2024-06-14 12:58:06,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=404, PETRI_PLACES=71, PETRI_TRANSITIONS=59}
[2024-06-14 12:58:06,449 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 41 predicate places.
[2024-06-14 12:58:06,449 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 59 transitions, 404 flow
[2024-06-14 12:58:06,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:06,449 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:06,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:58:06,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-06-14 12:58:06,450 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:06,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:06,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1150363938, now seen corresponding path program 3 times
[2024-06-14 12:58:06,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:06,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315942062]
[2024-06-14 12:58:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:06,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:08,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:08,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:08,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315942062]
[2024-06-14 12:58:08,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315942062] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:08,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:08,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:58:08,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133096113]
[2024-06-14 12:58:08,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:08,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:58:08,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:08,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:58:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:58:08,090 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:08,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 59 transitions, 404 flow. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:08,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:08,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:08,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:08,677 INFO L124 PetriNetUnfolderBase]: 171/317 cut-off events.
[2024-06-14 12:58:08,677 INFO L125 PetriNetUnfolderBase]: For 2956/2958 co-relation queries the response was YES.
[2024-06-14 12:58:08,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 317 events. 171/317 cut-off events. For 2956/2958 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1089 event pairs, 33 based on Foata normal form. 5/322 useless extension candidates. Maximal degree in co-relation 1451. Up to 266 conditions per place.
[2024-06-14 12:58:08,679 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 50 selfloop transitions, 18 changer transitions 0/70 dead transitions.
[2024-06-14 12:58:08,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 584 flow
[2024-06-14 12:58:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:58:08,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:58:08,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 70 transitions.
[2024-06-14 12:58:08,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3225806451612903
[2024-06-14 12:58:08,681 INFO L175 Difference]: Start difference. First operand has 71 places, 59 transitions, 404 flow. Second operand 7 states and 70 transitions.
[2024-06-14 12:58:08,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 584 flow
[2024-06-14 12:58:08,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 70 transitions, 547 flow, removed 13 selfloop flow, removed 3 redundant places.
[2024-06-14 12:58:08,685 INFO L231 Difference]: Finished difference. Result has 75 places, 61 transitions, 437 flow
[2024-06-14 12:58:08,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=437, PETRI_PLACES=75, PETRI_TRANSITIONS=61}
[2024-06-14 12:58:08,685 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 45 predicate places.
[2024-06-14 12:58:08,685 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 61 transitions, 437 flow
[2024-06-14 12:58:08,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:08,686 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:08,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 12:58:08,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-06-14 12:58:08,686 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:08,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:08,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1763246462, now seen corresponding path program 4 times
[2024-06-14 12:58:08,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:08,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401443517]
[2024-06-14 12:58:08,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:08,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:10,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:10,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:10,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401443517]
[2024-06-14 12:58:10,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401443517] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:10,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:10,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:58:10,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661995653]
[2024-06-14 12:58:10,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:10,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:58:10,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:10,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:58:10,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:58:10,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:10,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 61 transitions, 437 flow. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:10,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:10,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:10,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:10,895 INFO L124 PetriNetUnfolderBase]: 172/319 cut-off events.
[2024-06-14 12:58:10,896 INFO L125 PetriNetUnfolderBase]: For 3081/3083 co-relation queries the response was YES.
[2024-06-14 12:58:10,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1541 conditions, 319 events. 172/319 cut-off events. For 3081/3083 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1098 event pairs, 33 based on Foata normal form. 4/323 useless extension candidates. Maximal degree in co-relation 1502. Up to 274 conditions per place.
[2024-06-14 12:58:10,898 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 58 selfloop transitions, 15 changer transitions 0/75 dead transitions.
[2024-06-14 12:58:10,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 75 transitions, 641 flow
[2024-06-14 12:58:10,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:10,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:10,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 76 transitions.
[2024-06-14 12:58:10,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3064516129032258
[2024-06-14 12:58:10,899 INFO L175 Difference]: Start difference. First operand has 75 places, 61 transitions, 437 flow. Second operand 8 states and 76 transitions.
[2024-06-14 12:58:10,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 75 transitions, 641 flow
[2024-06-14 12:58:10,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 75 transitions, 595 flow, removed 8 selfloop flow, removed 5 redundant places.
[2024-06-14 12:58:10,904 INFO L231 Difference]: Finished difference. Result has 79 places, 65 transitions, 471 flow
[2024-06-14 12:58:10,904 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=471, PETRI_PLACES=79, PETRI_TRANSITIONS=65}
[2024-06-14 12:58:10,905 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 49 predicate places.
[2024-06-14 12:58:10,905 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 65 transitions, 471 flow
[2024-06-14 12:58:10,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:10,905 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:10,905 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 12:58:10,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-06-14 12:58:10,905 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:10,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:10,906 INFO L85 PathProgramCache]: Analyzing trace with hash 2018008651, now seen corresponding path program 1 times
[2024-06-14 12:58:10,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:10,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220661781]
[2024-06-14 12:58:10,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:10,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:13,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:13,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220661781]
[2024-06-14 12:58:13,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220661781] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:13,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:13,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:13,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070712722]
[2024-06-14 12:58:13,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:13,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:13,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:13,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:13,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:13,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:13,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 65 transitions, 471 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:13,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:13,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:13,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:14,020 INFO L124 PetriNetUnfolderBase]: 176/327 cut-off events.
[2024-06-14 12:58:14,020 INFO L125 PetriNetUnfolderBase]: For 3522/3524 co-relation queries the response was YES.
[2024-06-14 12:58:14,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1630 conditions, 327 events. 176/327 cut-off events. For 3522/3524 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1148 event pairs, 19 based on Foata normal form. 4/331 useless extension candidates. Maximal degree in co-relation 1589. Up to 217 conditions per place.
[2024-06-14 12:58:14,022 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 63 selfloop transitions, 21 changer transitions 0/86 dead transitions.
[2024-06-14 12:58:14,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 86 transitions, 731 flow
[2024-06-14 12:58:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:14,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 85 transitions.
[2024-06-14 12:58:14,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34274193548387094
[2024-06-14 12:58:14,023 INFO L175 Difference]: Start difference. First operand has 79 places, 65 transitions, 471 flow. Second operand 8 states and 85 transitions.
[2024-06-14 12:58:14,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 86 transitions, 731 flow
[2024-06-14 12:58:14,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 86 transitions, 683 flow, removed 12 selfloop flow, removed 5 redundant places.
[2024-06-14 12:58:14,028 INFO L231 Difference]: Finished difference. Result has 82 places, 66 transitions, 481 flow
[2024-06-14 12:58:14,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=481, PETRI_PLACES=82, PETRI_TRANSITIONS=66}
[2024-06-14 12:58:14,028 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 52 predicate places.
[2024-06-14 12:58:14,029 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 481 flow
[2024-06-14 12:58:14,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:14,029 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:14,029 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 12:58:14,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-06-14 12:58:14,029 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:14,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:14,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2018069101, now seen corresponding path program 2 times
[2024-06-14 12:58:14,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:14,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370571259]
[2024-06-14 12:58:14,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:14,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:16,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:16,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370571259]
[2024-06-14 12:58:16,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370571259] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:16,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:16,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:16,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526596115]
[2024-06-14 12:58:16,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:16,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:16,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:16,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:16,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:16,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:16,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 66 transitions, 481 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:16,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:16,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:16,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:16,865 INFO L124 PetriNetUnfolderBase]: 180/335 cut-off events.
[2024-06-14 12:58:16,866 INFO L125 PetriNetUnfolderBase]: For 3835/3837 co-relation queries the response was YES.
[2024-06-14 12:58:16,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1686 conditions, 335 events. 180/335 cut-off events. For 3835/3837 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1200 event pairs, 33 based on Foata normal form. 4/339 useless extension candidates. Maximal degree in co-relation 1644. Up to 268 conditions per place.
[2024-06-14 12:58:16,868 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 66 selfloop transitions, 17 changer transitions 0/85 dead transitions.
[2024-06-14 12:58:16,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 85 transitions, 703 flow
[2024-06-14 12:58:16,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:16,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:16,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 84 transitions.
[2024-06-14 12:58:16,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3387096774193548
[2024-06-14 12:58:16,870 INFO L175 Difference]: Start difference. First operand has 82 places, 66 transitions, 481 flow. Second operand 8 states and 84 transitions.
[2024-06-14 12:58:16,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 85 transitions, 703 flow
[2024-06-14 12:58:16,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 85 transitions, 654 flow, removed 7 selfloop flow, removed 5 redundant places.
[2024-06-14 12:58:16,876 INFO L231 Difference]: Finished difference. Result has 85 places, 67 transitions, 486 flow
[2024-06-14 12:58:16,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=486, PETRI_PLACES=85, PETRI_TRANSITIONS=67}
[2024-06-14 12:58:16,877 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 55 predicate places.
[2024-06-14 12:58:16,877 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 67 transitions, 486 flow
[2024-06-14 12:58:16,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:16,877 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:16,877 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 12:58:16,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-06-14 12:58:16,878 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:16,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:16,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2018069225, now seen corresponding path program 1 times
[2024-06-14 12:58:16,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:16,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110167153]
[2024-06-14 12:58:16,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:16,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:18,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:18,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:18,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110167153]
[2024-06-14 12:58:18,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110167153] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:18,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:18,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:18,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206009514]
[2024-06-14 12:58:18,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:18,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:18,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:18,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:18,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:18,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:18,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 67 transitions, 486 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:18,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:18,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:18,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:19,433 INFO L124 PetriNetUnfolderBase]: 196/361 cut-off events.
[2024-06-14 12:58:19,433 INFO L125 PetriNetUnfolderBase]: For 4725/4727 co-relation queries the response was YES.
[2024-06-14 12:58:19,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1844 conditions, 361 events. 196/361 cut-off events. For 4725/4727 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1315 event pairs, 34 based on Foata normal form. 4/365 useless extension candidates. Maximal degree in co-relation 1801. Up to 248 conditions per place.
[2024-06-14 12:58:19,435 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 61 selfloop transitions, 30 changer transitions 0/93 dead transitions.
[2024-06-14 12:58:19,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 812 flow
[2024-06-14 12:58:19,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:58:19,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:58:19,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 99 transitions.
[2024-06-14 12:58:19,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3548387096774194
[2024-06-14 12:58:19,437 INFO L175 Difference]: Start difference. First operand has 85 places, 67 transitions, 486 flow. Second operand 9 states and 99 transitions.
[2024-06-14 12:58:19,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 812 flow
[2024-06-14 12:58:19,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 93 transitions, 772 flow, removed 4 selfloop flow, removed 6 redundant places.
[2024-06-14 12:58:19,442 INFO L231 Difference]: Finished difference. Result has 88 places, 71 transitions, 559 flow
[2024-06-14 12:58:19,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=559, PETRI_PLACES=88, PETRI_TRANSITIONS=71}
[2024-06-14 12:58:19,443 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 58 predicate places.
[2024-06-14 12:58:19,443 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 71 transitions, 559 flow
[2024-06-14 12:58:19,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:19,443 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:19,443 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 12:58:19,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-06-14 12:58:19,443 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:19,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:19,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2020870385, now seen corresponding path program 2 times
[2024-06-14 12:58:19,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:19,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003961616]
[2024-06-14 12:58:19,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:19,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:22,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:22,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:22,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003961616]
[2024-06-14 12:58:22,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003961616] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:22,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:22,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:22,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552041086]
[2024-06-14 12:58:22,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:22,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:22,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:22,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:22,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:22,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:22,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 71 transitions, 559 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:22,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:22,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:22,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:22,783 INFO L124 PetriNetUnfolderBase]: 242/439 cut-off events.
[2024-06-14 12:58:22,783 INFO L125 PetriNetUnfolderBase]: For 5434/5436 co-relation queries the response was YES.
[2024-06-14 12:58:22,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2263 conditions, 439 events. 242/439 cut-off events. For 5434/5436 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1689 event pairs, 30 based on Foata normal form. 4/443 useless extension candidates. Maximal degree in co-relation 2219. Up to 358 conditions per place.
[2024-06-14 12:58:22,786 INFO L140 encePairwiseOnDemand]: 19/31 looper letters, 85 selfloop transitions, 29 changer transitions 0/116 dead transitions.
[2024-06-14 12:58:22,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 116 transitions, 1026 flow
[2024-06-14 12:58:22,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-06-14 12:58:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-06-14 12:58:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 116 transitions.
[2024-06-14 12:58:22,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3118279569892473
[2024-06-14 12:58:22,788 INFO L175 Difference]: Start difference. First operand has 88 places, 71 transitions, 559 flow. Second operand 12 states and 116 transitions.
[2024-06-14 12:58:22,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 116 transitions, 1026 flow
[2024-06-14 12:58:22,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 116 transitions, 956 flow, removed 12 selfloop flow, removed 5 redundant places.
[2024-06-14 12:58:22,795 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 761 flow
[2024-06-14 12:58:22,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=761, PETRI_PLACES=99, PETRI_TRANSITIONS=91}
[2024-06-14 12:58:22,796 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 69 predicate places.
[2024-06-14 12:58:22,796 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 761 flow
[2024-06-14 12:58:22,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:22,796 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:22,796 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 12:58:22,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-06-14 12:58:22,796 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:22,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:22,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1198063031, now seen corresponding path program 3 times
[2024-06-14 12:58:22,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:22,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157567425]
[2024-06-14 12:58:22,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:22,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:25,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:25,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157567425]
[2024-06-14 12:58:25,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157567425] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:25,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:25,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:25,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126541798]
[2024-06-14 12:58:25,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:25,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:25,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:25,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:25,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:25,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:25,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 761 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:25,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:25,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:25,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:25,907 INFO L124 PetriNetUnfolderBase]: 248/450 cut-off events.
[2024-06-14 12:58:25,907 INFO L125 PetriNetUnfolderBase]: For 6057/6063 co-relation queries the response was YES.
[2024-06-14 12:58:25,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2459 conditions, 450 events. 248/450 cut-off events. For 6057/6063 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1739 event pairs, 32 based on Foata normal form. 8/458 useless extension candidates. Maximal degree in co-relation 2409. Up to 372 conditions per place.
[2024-06-14 12:58:25,911 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 84 selfloop transitions, 22 changer transitions 0/108 dead transitions.
[2024-06-14 12:58:25,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 108 transitions, 1047 flow
[2024-06-14 12:58:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:25,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 79 transitions.
[2024-06-14 12:58:25,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3185483870967742
[2024-06-14 12:58:25,912 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 761 flow. Second operand 8 states and 79 transitions.
[2024-06-14 12:58:25,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 108 transitions, 1047 flow
[2024-06-14 12:58:25,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 108 transitions, 1014 flow, removed 12 selfloop flow, removed 3 redundant places.
[2024-06-14 12:58:25,921 INFO L231 Difference]: Finished difference. Result has 104 places, 93 transitions, 812 flow
[2024-06-14 12:58:25,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=812, PETRI_PLACES=104, PETRI_TRANSITIONS=93}
[2024-06-14 12:58:25,922 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 74 predicate places.
[2024-06-14 12:58:25,922 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 93 transitions, 812 flow
[2024-06-14 12:58:25,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:25,922 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:25,922 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 12:58:25,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-06-14 12:58:25,922 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:25,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:25,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1761645063, now seen corresponding path program 4 times
[2024-06-14 12:58:25,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:25,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371453205]
[2024-06-14 12:58:25,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:25,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:28,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:28,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371453205]
[2024-06-14 12:58:28,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371453205] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:28,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:28,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:28,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499614529]
[2024-06-14 12:58:28,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:28,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:28,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:28,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:28,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:28,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:28,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 93 transitions, 812 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:28,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:28,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:28,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:29,571 INFO L124 PetriNetUnfolderBase]: 254/460 cut-off events.
[2024-06-14 12:58:29,571 INFO L125 PetriNetUnfolderBase]: For 6745/6751 co-relation queries the response was YES.
[2024-06-14 12:58:29,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2607 conditions, 460 events. 254/460 cut-off events. For 6745/6751 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1796 event pairs, 34 based on Foata normal form. 8/468 useless extension candidates. Maximal degree in co-relation 2556. Up to 371 conditions per place.
[2024-06-14 12:58:29,574 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 83 selfloop transitions, 26 changer transitions 0/111 dead transitions.
[2024-06-14 12:58:29,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 111 transitions, 1110 flow
[2024-06-14 12:58:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:58:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:58:29,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 86 transitions.
[2024-06-14 12:58:29,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30824372759856633
[2024-06-14 12:58:29,576 INFO L175 Difference]: Start difference. First operand has 104 places, 93 transitions, 812 flow. Second operand 9 states and 86 transitions.
[2024-06-14 12:58:29,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 111 transitions, 1110 flow
[2024-06-14 12:58:29,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 111 transitions, 1042 flow, removed 15 selfloop flow, removed 6 redundant places.
[2024-06-14 12:58:29,585 INFO L231 Difference]: Finished difference. Result has 107 places, 95 transitions, 843 flow
[2024-06-14 12:58:29,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=843, PETRI_PLACES=107, PETRI_TRANSITIONS=95}
[2024-06-14 12:58:29,585 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 77 predicate places.
[2024-06-14 12:58:29,586 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 95 transitions, 843 flow
[2024-06-14 12:58:29,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:29,586 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:29,586 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 12:58:29,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-06-14 12:58:29,586 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:29,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:29,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1761644939, now seen corresponding path program 3 times
[2024-06-14 12:58:29,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:29,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11264556]
[2024-06-14 12:58:29,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:29,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:32,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:32,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11264556]
[2024-06-14 12:58:32,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11264556] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:32,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:32,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:32,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541579344]
[2024-06-14 12:58:32,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:32,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:32,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:32,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:32,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:32,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:32,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 95 transitions, 843 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:32,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:32,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:32,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:32,593 INFO L124 PetriNetUnfolderBase]: 258/468 cut-off events.
[2024-06-14 12:58:32,593 INFO L125 PetriNetUnfolderBase]: For 6747/6753 co-relation queries the response was YES.
[2024-06-14 12:58:32,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2648 conditions, 468 events. 258/468 cut-off events. For 6747/6753 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1843 event pairs, 38 based on Foata normal form. 8/476 useless extension candidates. Maximal degree in co-relation 2596. Up to 407 conditions per place.
[2024-06-14 12:58:32,596 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 91 selfloop transitions, 17 changer transitions 0/110 dead transitions.
[2024-06-14 12:58:32,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 1108 flow
[2024-06-14 12:58:32,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 77 transitions.
[2024-06-14 12:58:32,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31048387096774194
[2024-06-14 12:58:32,599 INFO L175 Difference]: Start difference. First operand has 107 places, 95 transitions, 843 flow. Second operand 8 states and 77 transitions.
[2024-06-14 12:58:32,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 1108 flow
[2024-06-14 12:58:32,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 110 transitions, 1039 flow, removed 13 selfloop flow, removed 7 redundant places.
[2024-06-14 12:58:32,608 INFO L231 Difference]: Finished difference. Result has 108 places, 96 transitions, 827 flow
[2024-06-14 12:58:32,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=827, PETRI_PLACES=108, PETRI_TRANSITIONS=96}
[2024-06-14 12:58:32,609 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 78 predicate places.
[2024-06-14 12:58:32,609 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 96 transitions, 827 flow
[2024-06-14 12:58:32,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:32,609 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:32,609 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 12:58:32,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-06-14 12:58:32,609 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:32,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:32,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1876940883, now seen corresponding path program 5 times
[2024-06-14 12:58:32,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:32,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080681358]
[2024-06-14 12:58:32,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:32,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:34,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:34,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080681358]
[2024-06-14 12:58:34,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080681358] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:34,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:34,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:34,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725214114]
[2024-06-14 12:58:34,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:34,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:34,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:34,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:34,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:34,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:34,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 96 transitions, 827 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:34,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:34,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:34,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:35,171 INFO L124 PetriNetUnfolderBase]: 264/478 cut-off events.
[2024-06-14 12:58:35,171 INFO L125 PetriNetUnfolderBase]: For 6635/6641 co-relation queries the response was YES.
[2024-06-14 12:58:35,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2645 conditions, 478 events. 264/478 cut-off events. For 6635/6641 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1908 event pairs, 36 based on Foata normal form. 8/486 useless extension candidates. Maximal degree in co-relation 2592. Up to 379 conditions per place.
[2024-06-14 12:58:35,186 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 74 selfloop transitions, 36 changer transitions 0/112 dead transitions.
[2024-06-14 12:58:35,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 112 transitions, 1115 flow
[2024-06-14 12:58:35,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:58:35,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:58:35,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 94 transitions.
[2024-06-14 12:58:35,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3032258064516129
[2024-06-14 12:58:35,187 INFO L175 Difference]: Start difference. First operand has 108 places, 96 transitions, 827 flow. Second operand 10 states and 94 transitions.
[2024-06-14 12:58:35,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 112 transitions, 1115 flow
[2024-06-14 12:58:35,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 112 transitions, 1073 flow, removed 5 selfloop flow, removed 6 redundant places.
[2024-06-14 12:58:35,195 INFO L231 Difference]: Finished difference. Result has 112 places, 98 transitions, 891 flow
[2024-06-14 12:58:35,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=891, PETRI_PLACES=112, PETRI_TRANSITIONS=98}
[2024-06-14 12:58:35,196 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 82 predicate places.
[2024-06-14 12:58:35,196 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 98 transitions, 891 flow
[2024-06-14 12:58:35,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:35,196 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:35,196 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 12:58:35,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-06-14 12:58:35,196 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:35,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:35,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1560940595, now seen corresponding path program 4 times
[2024-06-14 12:58:35,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:35,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937003616]
[2024-06-14 12:58:35,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:35,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:37,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:37,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937003616]
[2024-06-14 12:58:37,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937003616] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:37,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:37,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:37,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539566651]
[2024-06-14 12:58:37,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:37,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:37,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:37,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:37,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:37,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:37,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 98 transitions, 891 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:37,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:37,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:37,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:37,965 INFO L124 PetriNetUnfolderBase]: 261/473 cut-off events.
[2024-06-14 12:58:37,965 INFO L125 PetriNetUnfolderBase]: For 6460/6466 co-relation queries the response was YES.
[2024-06-14 12:58:37,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2638 conditions, 473 events. 261/473 cut-off events. For 6460/6466 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1870 event pairs, 37 based on Foata normal form. 8/481 useless extension candidates. Maximal degree in co-relation 2584. Up to 419 conditions per place.
[2024-06-14 12:58:37,968 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 89 selfloop transitions, 17 changer transitions 0/108 dead transitions.
[2024-06-14 12:58:37,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 108 transitions, 1127 flow
[2024-06-14 12:58:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:37,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 74 transitions.
[2024-06-14 12:58:37,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29838709677419356
[2024-06-14 12:58:37,969 INFO L175 Difference]: Start difference. First operand has 112 places, 98 transitions, 891 flow. Second operand 8 states and 74 transitions.
[2024-06-14 12:58:37,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 108 transitions, 1127 flow
[2024-06-14 12:58:37,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 108 transitions, 1028 flow, removed 14 selfloop flow, removed 8 redundant places.
[2024-06-14 12:58:37,978 INFO L231 Difference]: Finished difference. Result has 112 places, 98 transitions, 830 flow
[2024-06-14 12:58:37,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=830, PETRI_PLACES=112, PETRI_TRANSITIONS=98}
[2024-06-14 12:58:37,979 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 82 predicate places.
[2024-06-14 12:58:37,979 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 98 transitions, 830 flow
[2024-06-14 12:58:37,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:37,979 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:37,980 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 12:58:37,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-06-14 12:58:37,980 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:37,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:37,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1877113863, now seen corresponding path program 6 times
[2024-06-14 12:58:37,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:37,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4759283]
[2024-06-14 12:58:37,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:37,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:40,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:40,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:40,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4759283]
[2024-06-14 12:58:40,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4759283] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:40,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:40,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:40,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758525944]
[2024-06-14 12:58:40,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:40,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:40,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:40,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:40,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:40,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:40,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 98 transitions, 830 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:40,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:40,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:40,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:40,891 INFO L124 PetriNetUnfolderBase]: 267/483 cut-off events.
[2024-06-14 12:58:40,891 INFO L125 PetriNetUnfolderBase]: For 6991/6997 co-relation queries the response was YES.
[2024-06-14 12:58:40,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2640 conditions, 483 events. 267/483 cut-off events. For 6991/6997 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1933 event pairs, 37 based on Foata normal form. 8/491 useless extension candidates. Maximal degree in co-relation 2585. Up to 400 conditions per place.
[2024-06-14 12:58:40,894 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 83 selfloop transitions, 26 changer transitions 0/111 dead transitions.
[2024-06-14 12:58:40,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 111 transitions, 1110 flow
[2024-06-14 12:58:40,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:40,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:40,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 78 transitions.
[2024-06-14 12:58:40,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31451612903225806
[2024-06-14 12:58:40,895 INFO L175 Difference]: Start difference. First operand has 112 places, 98 transitions, 830 flow. Second operand 8 states and 78 transitions.
[2024-06-14 12:58:40,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 111 transitions, 1110 flow
[2024-06-14 12:58:40,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 111 transitions, 1047 flow, removed 2 selfloop flow, removed 8 redundant places.
[2024-06-14 12:58:40,906 INFO L231 Difference]: Finished difference. Result has 112 places, 100 transitions, 858 flow
[2024-06-14 12:58:40,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=858, PETRI_PLACES=112, PETRI_TRANSITIONS=100}
[2024-06-14 12:58:40,907 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 82 predicate places.
[2024-06-14 12:58:40,907 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 100 transitions, 858 flow
[2024-06-14 12:58:40,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:40,907 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:40,907 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 12:58:40,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-06-14 12:58:40,908 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:40,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:40,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1560755897, now seen corresponding path program 1 times
[2024-06-14 12:58:40,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:40,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430757207]
[2024-06-14 12:58:40,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:40,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:43,374 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 12:58:43,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:43,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430757207]
[2024-06-14 12:58:43,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430757207] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:43,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:43,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:43,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148039559]
[2024-06-14 12:58:43,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:43,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:43,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:43,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:43,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:43,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:43,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 100 transitions, 858 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:43,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:43,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:43,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:44,065 INFO L124 PetriNetUnfolderBase]: 271/491 cut-off events.
[2024-06-14 12:58:44,066 INFO L125 PetriNetUnfolderBase]: For 7456/7462 co-relation queries the response was YES.
[2024-06-14 12:58:44,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2693 conditions, 491 events. 271/491 cut-off events. For 7456/7462 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1974 event pairs, 37 based on Foata normal form. 8/499 useless extension candidates. Maximal degree in co-relation 2637. Up to 425 conditions per place.
[2024-06-14 12:58:44,069 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 88 selfloop transitions, 20 changer transitions 0/110 dead transitions.
[2024-06-14 12:58:44,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 110 transitions, 1106 flow
[2024-06-14 12:58:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 12:58:44,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 12:58:44,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 69 transitions.
[2024-06-14 12:58:44,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31797235023041476
[2024-06-14 12:58:44,074 INFO L175 Difference]: Start difference. First operand has 112 places, 100 transitions, 858 flow. Second operand 7 states and 69 transitions.
[2024-06-14 12:58:44,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 110 transitions, 1106 flow
[2024-06-14 12:58:44,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 110 transitions, 1039 flow, removed 10 selfloop flow, removed 6 redundant places.
[2024-06-14 12:58:44,085 INFO L231 Difference]: Finished difference. Result has 113 places, 101 transitions, 849 flow
[2024-06-14 12:58:44,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=849, PETRI_PLACES=113, PETRI_TRANSITIONS=101}
[2024-06-14 12:58:44,085 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 83 predicate places.
[2024-06-14 12:58:44,085 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 101 transitions, 849 flow
[2024-06-14 12:58:44,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:44,085 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:44,086 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 12:58:44,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-06-14 12:58:44,086 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:44,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:44,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1560940471, now seen corresponding path program 7 times
[2024-06-14 12:58:44,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:44,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071367128]
[2024-06-14 12:58:44,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:44,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:45,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:45,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071367128]
[2024-06-14 12:58:45,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071367128] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:45,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:45,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:45,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272634590]
[2024-06-14 12:58:45,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:45,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:45,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:45,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:45,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:45,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:45,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 101 transitions, 849 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:45,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:45,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:45,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:46,558 INFO L124 PetriNetUnfolderBase]: 267/485 cut-off events.
[2024-06-14 12:58:46,558 INFO L125 PetriNetUnfolderBase]: For 7245/7251 co-relation queries the response was YES.
[2024-06-14 12:58:46,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2609 conditions, 485 events. 267/485 cut-off events. For 7245/7251 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1948 event pairs, 32 based on Foata normal form. 8/493 useless extension candidates. Maximal degree in co-relation 2552. Up to 361 conditions per place.
[2024-06-14 12:58:46,562 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 74 selfloop transitions, 38 changer transitions 0/114 dead transitions.
[2024-06-14 12:58:46,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 114 transitions, 1115 flow
[2024-06-14 12:58:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:58:46,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:58:46,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 88 transitions.
[2024-06-14 12:58:46,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3154121863799283
[2024-06-14 12:58:46,564 INFO L175 Difference]: Start difference. First operand has 113 places, 101 transitions, 849 flow. Second operand 9 states and 88 transitions.
[2024-06-14 12:58:46,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 114 transitions, 1115 flow
[2024-06-14 12:58:46,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 114 transitions, 1055 flow, removed 11 selfloop flow, removed 6 redundant places.
[2024-06-14 12:58:46,574 INFO L231 Difference]: Finished difference. Result has 116 places, 101 transitions, 870 flow
[2024-06-14 12:58:46,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=870, PETRI_PLACES=116, PETRI_TRANSITIONS=101}
[2024-06-14 12:58:46,574 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 86 predicate places.
[2024-06-14 12:58:46,575 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 101 transitions, 870 flow
[2024-06-14 12:58:46,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:46,575 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:46,575 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 12:58:46,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2024-06-14 12:58:46,575 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:46,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:46,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2135313751, now seen corresponding path program 2 times
[2024-06-14 12:58:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:46,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084198519]
[2024-06-14 12:58:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:46,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:48,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:48,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084198519]
[2024-06-14 12:58:48,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084198519] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:48,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:48,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-06-14 12:58:48,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951544863]
[2024-06-14 12:58:48,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:48,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-06-14 12:58:48,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:48,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-06-14 12:58:48,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-06-14 12:58:48,692 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:48,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 101 transitions, 870 flow. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:48,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:48,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:48,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:49,330 INFO L124 PetriNetUnfolderBase]: 271/493 cut-off events.
[2024-06-14 12:58:49,330 INFO L125 PetriNetUnfolderBase]: For 7364/7370 co-relation queries the response was YES.
[2024-06-14 12:58:49,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2667 conditions, 493 events. 271/493 cut-off events. For 7364/7370 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1996 event pairs, 40 based on Foata normal form. 8/501 useless extension candidates. Maximal degree in co-relation 2610. Up to 425 conditions per place.
[2024-06-14 12:58:49,333 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 88 selfloop transitions, 22 changer transitions 0/112 dead transitions.
[2024-06-14 12:58:49,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 112 transitions, 1126 flow
[2024-06-14 12:58:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:49,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:49,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 77 transitions.
[2024-06-14 12:58:49,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31048387096774194
[2024-06-14 12:58:49,335 INFO L175 Difference]: Start difference. First operand has 116 places, 101 transitions, 870 flow. Second operand 8 states and 77 transitions.
[2024-06-14 12:58:49,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 112 transitions, 1126 flow
[2024-06-14 12:58:49,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 112 transitions, 1011 flow, removed 6 selfloop flow, removed 9 redundant places.
[2024-06-14 12:58:49,346 INFO L231 Difference]: Finished difference. Result has 115 places, 102 transitions, 817 flow
[2024-06-14 12:58:49,347 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=817, PETRI_PLACES=115, PETRI_TRANSITIONS=102}
[2024-06-14 12:58:49,347 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 85 predicate places.
[2024-06-14 12:58:49,347 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 102 transitions, 817 flow
[2024-06-14 12:58:49,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:49,347 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:49,347 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 12:58:49,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2024-06-14 12:58:49,348 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:49,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:49,348 INFO L85 PathProgramCache]: Analyzing trace with hash -2143594905, now seen corresponding path program 8 times
[2024-06-14 12:58:49,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:49,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455225556]
[2024-06-14 12:58:49,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:49,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:51,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:51,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:51,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455225556]
[2024-06-14 12:58:51,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455225556] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:51,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:51,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:51,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222419866]
[2024-06-14 12:58:51,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:51,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:51,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:51,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:51,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:51,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 102 transitions, 817 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:51,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:51,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:51,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:51,812 INFO L124 PetriNetUnfolderBase]: 268/489 cut-off events.
[2024-06-14 12:58:51,812 INFO L125 PetriNetUnfolderBase]: For 6866/6872 co-relation queries the response was YES.
[2024-06-14 12:58:51,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2504 conditions, 489 events. 268/489 cut-off events. For 6866/6872 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1985 event pairs, 35 based on Foata normal form. 8/497 useless extension candidates. Maximal degree in co-relation 2447. Up to 406 conditions per place.
[2024-06-14 12:58:51,815 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 90 selfloop transitions, 27 changer transitions 0/119 dead transitions.
[2024-06-14 12:58:51,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 119 transitions, 1205 flow
[2024-06-14 12:58:51,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:58:51,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:58:51,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 87 transitions.
[2024-06-14 12:58:51,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3118279569892473
[2024-06-14 12:58:51,817 INFO L175 Difference]: Start difference. First operand has 115 places, 102 transitions, 817 flow. Second operand 9 states and 87 transitions.
[2024-06-14 12:58:51,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 119 transitions, 1205 flow
[2024-06-14 12:58:51,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 119 transitions, 1153 flow, removed 5 selfloop flow, removed 6 redundant places.
[2024-06-14 12:58:51,827 INFO L231 Difference]: Finished difference. Result has 119 places, 106 transitions, 899 flow
[2024-06-14 12:58:51,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=765, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=899, PETRI_PLACES=119, PETRI_TRANSITIONS=106}
[2024-06-14 12:58:51,828 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 89 predicate places.
[2024-06-14 12:58:51,828 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 106 transitions, 899 flow
[2024-06-14 12:58:51,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:51,828 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:51,828 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 12:58:51,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2024-06-14 12:58:51,828 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:51,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:51,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2135017081, now seen corresponding path program 3 times
[2024-06-14 12:58:51,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:51,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110204484]
[2024-06-14 12:58:51,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:51,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:54,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:54,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:54,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110204484]
[2024-06-14 12:58:54,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110204484] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:54,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:54,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:54,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883895653]
[2024-06-14 12:58:54,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:54,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:54,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:54,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:54,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:54,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:54,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 106 transitions, 899 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:54,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:54,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:54,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:54,713 INFO L124 PetriNetUnfolderBase]: 265/484 cut-off events.
[2024-06-14 12:58:54,713 INFO L125 PetriNetUnfolderBase]: For 6764/6770 co-relation queries the response was YES.
[2024-06-14 12:58:54,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2479 conditions, 484 events. 265/484 cut-off events. For 6764/6770 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1965 event pairs, 34 based on Foata normal form. 8/492 useless extension candidates. Maximal degree in co-relation 2420. Up to 396 conditions per place.
[2024-06-14 12:58:54,716 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 92 selfloop transitions, 23 changer transitions 0/117 dead transitions.
[2024-06-14 12:58:54,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 117 transitions, 1155 flow
[2024-06-14 12:58:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 75 transitions.
[2024-06-14 12:58:54,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3024193548387097
[2024-06-14 12:58:54,729 INFO L175 Difference]: Start difference. First operand has 119 places, 106 transitions, 899 flow. Second operand 8 states and 75 transitions.
[2024-06-14 12:58:54,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 117 transitions, 1155 flow
[2024-06-14 12:58:54,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 117 transitions, 1096 flow, removed 15 selfloop flow, removed 5 redundant places.
[2024-06-14 12:58:54,740 INFO L231 Difference]: Finished difference. Result has 122 places, 106 transitions, 890 flow
[2024-06-14 12:58:54,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=890, PETRI_PLACES=122, PETRI_TRANSITIONS=106}
[2024-06-14 12:58:54,741 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 92 predicate places.
[2024-06-14 12:58:54,741 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 106 transitions, 890 flow
[2024-06-14 12:58:54,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:54,741 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:54,741 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 12:58:54,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2024-06-14 12:58:54,741 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:54,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:54,742 INFO L85 PathProgramCache]: Analyzing trace with hash -2143588209, now seen corresponding path program 1 times
[2024-06-14 12:58:54,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:54,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238387420]
[2024-06-14 12:58:54,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:54,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:56,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:56,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238387420]
[2024-06-14 12:58:56,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238387420] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:56,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:56,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-06-14 12:58:56,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070492687]
[2024-06-14 12:58:56,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:56,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-06-14 12:58:56,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:56,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-06-14 12:58:56,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2024-06-14 12:58:56,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:56,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 106 transitions, 890 flow. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:56,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:56,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:56,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:58:57,544 INFO L124 PetriNetUnfolderBase]: 262/479 cut-off events.
[2024-06-14 12:58:57,544 INFO L125 PetriNetUnfolderBase]: For 6281/6287 co-relation queries the response was YES.
[2024-06-14 12:58:57,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2428 conditions, 479 events. 262/479 cut-off events. For 6281/6287 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1948 event pairs, 34 based on Foata normal form. 7/486 useless extension candidates. Maximal degree in co-relation 2367. Up to 408 conditions per place.
[2024-06-14 12:58:57,547 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 89 selfloop transitions, 25 changer transitions 0/116 dead transitions.
[2024-06-14 12:58:57,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 116 transitions, 1146 flow
[2024-06-14 12:58:57,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:58:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:58:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 78 transitions.
[2024-06-14 12:58:57,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31451612903225806
[2024-06-14 12:58:57,548 INFO L175 Difference]: Start difference. First operand has 122 places, 106 transitions, 890 flow. Second operand 8 states and 78 transitions.
[2024-06-14 12:58:57,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 116 transitions, 1146 flow
[2024-06-14 12:58:57,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 116 transitions, 1070 flow, removed 16 selfloop flow, removed 6 redundant places.
[2024-06-14 12:58:57,558 INFO L231 Difference]: Finished difference. Result has 124 places, 106 transitions, 872 flow
[2024-06-14 12:58:57,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=872, PETRI_PLACES=124, PETRI_TRANSITIONS=106}
[2024-06-14 12:58:57,558 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 94 predicate places.
[2024-06-14 12:58:57,558 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 106 transitions, 872 flow
[2024-06-14 12:58:57,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:57,558 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:58:57,558 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 12:58:57,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2024-06-14 12:58:57,559 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:58:57,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:58:57,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1312145803, now seen corresponding path program 1 times
[2024-06-14 12:58:57,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:58:57,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494798797]
[2024-06-14 12:58:57,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:58:57,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:58:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:58:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:58:59,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:58:59,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494798797]
[2024-06-14 12:58:59,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494798797] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:58:59,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:58:59,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:58:59,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910053811]
[2024-06-14 12:58:59,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:58:59,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:58:59,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:58:59,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:58:59,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:58:59,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:58:59,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 106 transitions, 872 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:58:59,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:58:59,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:58:59,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:00,315 INFO L124 PetriNetUnfolderBase]: 303/566 cut-off events.
[2024-06-14 12:59:00,315 INFO L125 PetriNetUnfolderBase]: For 14139/14145 co-relation queries the response was YES.
[2024-06-14 12:59:00,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3023 conditions, 566 events. 303/566 cut-off events. For 14139/14145 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2457 event pairs, 46 based on Foata normal form. 14/580 useless extension candidates. Maximal degree in co-relation 2961. Up to 235 conditions per place.
[2024-06-14 12:59:00,319 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 80 selfloop transitions, 42 changer transitions 14/138 dead transitions.
[2024-06-14 12:59:00,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 138 transitions, 1342 flow
[2024-06-14 12:59:00,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:59:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:59:00,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 111 transitions.
[2024-06-14 12:59:00,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3580645161290323
[2024-06-14 12:59:00,324 INFO L175 Difference]: Start difference. First operand has 124 places, 106 transitions, 872 flow. Second operand 10 states and 111 transitions.
[2024-06-14 12:59:00,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 138 transitions, 1342 flow
[2024-06-14 12:59:00,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 138 transitions, 1292 flow, removed 0 selfloop flow, removed 7 redundant places.
[2024-06-14 12:59:00,337 INFO L231 Difference]: Finished difference. Result has 127 places, 103 transitions, 893 flow
[2024-06-14 12:59:00,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=893, PETRI_PLACES=127, PETRI_TRANSITIONS=103}
[2024-06-14 12:59:00,338 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 97 predicate places.
[2024-06-14 12:59:00,338 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 103 transitions, 893 flow
[2024-06-14 12:59:00,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:00,338 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:00,338 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 12:59:00,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2024-06-14 12:59:00,338 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:00,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2086620419, now seen corresponding path program 2 times
[2024-06-14 12:59:00,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:00,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198439866]
[2024-06-14 12:59:00,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:00,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:02,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:02,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:02,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198439866]
[2024-06-14 12:59:02,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198439866] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:02,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:02,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:02,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992813529]
[2024-06-14 12:59:02,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:02,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:02,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:02,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:02,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:02,632 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:02,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 103 transitions, 893 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:02,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:02,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:02,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:03,374 INFO L124 PetriNetUnfolderBase]: 289/540 cut-off events.
[2024-06-14 12:59:03,375 INFO L125 PetriNetUnfolderBase]: For 16141/16147 co-relation queries the response was YES.
[2024-06-14 12:59:03,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3034 conditions, 540 events. 289/540 cut-off events. For 16141/16147 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2324 event pairs, 56 based on Foata normal form. 16/556 useless extension candidates. Maximal degree in co-relation 2971. Up to 332 conditions per place.
[2024-06-14 12:59:03,377 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 72 selfloop transitions, 41 changer transitions 11/126 dead transitions.
[2024-06-14 12:59:03,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 126 transitions, 1239 flow
[2024-06-14 12:59:03,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:59:03,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:59:03,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 103 transitions.
[2024-06-14 12:59:03,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33225806451612905
[2024-06-14 12:59:03,385 INFO L175 Difference]: Start difference. First operand has 127 places, 103 transitions, 893 flow. Second operand 10 states and 103 transitions.
[2024-06-14 12:59:03,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 126 transitions, 1239 flow
[2024-06-14 12:59:03,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 126 transitions, 1159 flow, removed 3 selfloop flow, removed 9 redundant places.
[2024-06-14 12:59:03,398 INFO L231 Difference]: Finished difference. Result has 124 places, 100 transitions, 880 flow
[2024-06-14 12:59:03,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=880, PETRI_PLACES=124, PETRI_TRANSITIONS=100}
[2024-06-14 12:59:03,399 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 94 predicate places.
[2024-06-14 12:59:03,399 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 100 transitions, 880 flow
[2024-06-14 12:59:03,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:03,399 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:03,399 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 12:59:03,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2024-06-14 12:59:03,399 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:03,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:03,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1310271853, now seen corresponding path program 3 times
[2024-06-14 12:59:03,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:03,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592972586]
[2024-06-14 12:59:03,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:03,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:06,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:06,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592972586]
[2024-06-14 12:59:06,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592972586] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:06,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:06,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:06,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274705805]
[2024-06-14 12:59:06,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:06,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:06,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:06,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:06,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:06,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:06,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 100 transitions, 880 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:06,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:06,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:06,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:06,905 INFO L124 PetriNetUnfolderBase]: 287/538 cut-off events.
[2024-06-14 12:59:06,905 INFO L125 PetriNetUnfolderBase]: For 14290/14296 co-relation queries the response was YES.
[2024-06-14 12:59:06,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3084 conditions, 538 events. 287/538 cut-off events. For 14290/14296 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2323 event pairs, 37 based on Foata normal form. 14/552 useless extension candidates. Maximal degree in co-relation 3023. Up to 297 conditions per place.
[2024-06-14 12:59:06,907 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 63 selfloop transitions, 48 changer transitions 15/128 dead transitions.
[2024-06-14 12:59:06,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 128 transitions, 1316 flow
[2024-06-14 12:59:06,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:59:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:59:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 106 transitions.
[2024-06-14 12:59:06,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3419354838709677
[2024-06-14 12:59:06,909 INFO L175 Difference]: Start difference. First operand has 124 places, 100 transitions, 880 flow. Second operand 10 states and 106 transitions.
[2024-06-14 12:59:06,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 128 transitions, 1316 flow
[2024-06-14 12:59:06,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 128 transitions, 1222 flow, removed 4 selfloop flow, removed 9 redundant places.
[2024-06-14 12:59:06,923 INFO L231 Difference]: Finished difference. Result has 124 places, 98 transitions, 922 flow
[2024-06-14 12:59:06,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=922, PETRI_PLACES=124, PETRI_TRANSITIONS=98}
[2024-06-14 12:59:06,923 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 94 predicate places.
[2024-06-14 12:59:06,923 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 98 transitions, 922 flow
[2024-06-14 12:59:06,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:06,923 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:06,924 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 12:59:06,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2024-06-14 12:59:06,924 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:06,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:06,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1223426221, now seen corresponding path program 1 times
[2024-06-14 12:59:06,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:06,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657498184]
[2024-06-14 12:59:06,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:06,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:10,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:10,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:10,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657498184]
[2024-06-14 12:59:10,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657498184] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:10,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:10,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:10,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147477105]
[2024-06-14 12:59:10,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:10,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:10,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:10,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:10,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:10,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:10,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 98 transitions, 922 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:10,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:10,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:10,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:10,614 INFO L124 PetriNetUnfolderBase]: 256/477 cut-off events.
[2024-06-14 12:59:10,614 INFO L125 PetriNetUnfolderBase]: For 10611/10617 co-relation queries the response was YES.
[2024-06-14 12:59:10,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2842 conditions, 477 events. 256/477 cut-off events. For 10611/10617 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1975 event pairs, 36 based on Foata normal form. 8/485 useless extension candidates. Maximal degree in co-relation 2780. Up to 357 conditions per place.
[2024-06-14 12:59:10,617 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 73 selfloop transitions, 36 changer transitions 0/111 dead transitions.
[2024-06-14 12:59:10,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 111 transitions, 1178 flow
[2024-06-14 12:59:10,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:59:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:59:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 85 transitions.
[2024-06-14 12:59:10,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3046594982078853
[2024-06-14 12:59:10,618 INFO L175 Difference]: Start difference. First operand has 124 places, 98 transitions, 922 flow. Second operand 9 states and 85 transitions.
[2024-06-14 12:59:10,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 111 transitions, 1178 flow
[2024-06-14 12:59:10,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 111 transitions, 1083 flow, removed 13 selfloop flow, removed 10 redundant places.
[2024-06-14 12:59:10,631 INFO L231 Difference]: Finished difference. Result has 119 places, 98 transitions, 904 flow
[2024-06-14 12:59:10,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=904, PETRI_PLACES=119, PETRI_TRANSITIONS=98}
[2024-06-14 12:59:10,632 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 89 predicate places.
[2024-06-14 12:59:10,632 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 98 transitions, 904 flow
[2024-06-14 12:59:10,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:10,632 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:10,632 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 12:59:10,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2024-06-14 12:59:10,632 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:10,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:10,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2082901349, now seen corresponding path program 4 times
[2024-06-14 12:59:10,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:10,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054921705]
[2024-06-14 12:59:10,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:10,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:13,914 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 12:59:13,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:13,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054921705]
[2024-06-14 12:59:13,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054921705] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:13,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:13,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:13,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968066743]
[2024-06-14 12:59:13,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:13,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:13,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:13,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:13,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:13,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:13,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 98 transitions, 904 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:13,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:13,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:13,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:14,444 INFO L124 PetriNetUnfolderBase]: 272/513 cut-off events.
[2024-06-14 12:59:14,445 INFO L125 PetriNetUnfolderBase]: For 11037/11043 co-relation queries the response was YES.
[2024-06-14 12:59:14,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2865 conditions, 513 events. 272/513 cut-off events. For 11037/11043 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2199 event pairs, 46 based on Foata normal form. 16/529 useless extension candidates. Maximal degree in co-relation 2806. Up to 337 conditions per place.
[2024-06-14 12:59:14,447 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 68 selfloop transitions, 33 changer transitions 14/117 dead transitions.
[2024-06-14 12:59:14,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 117 transitions, 1218 flow
[2024-06-14 12:59:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:59:14,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:59:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 96 transitions.
[2024-06-14 12:59:14,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3096774193548387
[2024-06-14 12:59:14,448 INFO L175 Difference]: Start difference. First operand has 119 places, 98 transitions, 904 flow. Second operand 10 states and 96 transitions.
[2024-06-14 12:59:14,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 117 transitions, 1218 flow
[2024-06-14 12:59:14,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 117 transitions, 1146 flow, removed 0 selfloop flow, removed 8 redundant places.
[2024-06-14 12:59:14,460 INFO L231 Difference]: Finished difference. Result has 121 places, 92 transitions, 832 flow
[2024-06-14 12:59:14,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=832, PETRI_PLACES=121, PETRI_TRANSITIONS=92}
[2024-06-14 12:59:14,461 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 91 predicate places.
[2024-06-14 12:59:14,461 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 92 transitions, 832 flow
[2024-06-14 12:59:14,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:14,462 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:14,462 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 12:59:14,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2024-06-14 12:59:14,462 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:14,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:14,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1223580043, now seen corresponding path program 5 times
[2024-06-14 12:59:14,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:14,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023323335]
[2024-06-14 12:59:14,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:14,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:17,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:17,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:17,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023323335]
[2024-06-14 12:59:17,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023323335] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:17,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:17,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:17,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548388695]
[2024-06-14 12:59:17,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:17,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:17,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:17,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:17,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:17,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:17,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 92 transitions, 832 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:17,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:17,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:17,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:18,102 INFO L124 PetriNetUnfolderBase]: 277/536 cut-off events.
[2024-06-14 12:59:18,102 INFO L125 PetriNetUnfolderBase]: For 14341/14347 co-relation queries the response was YES.
[2024-06-14 12:59:18,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3150 conditions, 536 events. 277/536 cut-off events. For 14341/14347 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2373 event pairs, 55 based on Foata normal form. 14/550 useless extension candidates. Maximal degree in co-relation 3104. Up to 298 conditions per place.
[2024-06-14 12:59:18,105 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 74 selfloop transitions, 33 changer transitions 7/116 dead transitions.
[2024-06-14 12:59:18,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 116 transitions, 1228 flow
[2024-06-14 12:59:18,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:59:18,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:59:18,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 103 transitions.
[2024-06-14 12:59:18,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33225806451612905
[2024-06-14 12:59:18,106 INFO L175 Difference]: Start difference. First operand has 121 places, 92 transitions, 832 flow. Second operand 10 states and 103 transitions.
[2024-06-14 12:59:18,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 116 transitions, 1228 flow
[2024-06-14 12:59:18,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 116 transitions, 1154 flow, removed 4 selfloop flow, removed 9 redundant places.
[2024-06-14 12:59:18,120 INFO L231 Difference]: Finished difference. Result has 118 places, 90 transitions, 817 flow
[2024-06-14 12:59:18,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=817, PETRI_PLACES=118, PETRI_TRANSITIONS=90}
[2024-06-14 12:59:18,121 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 88 predicate places.
[2024-06-14 12:59:18,121 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 90 transitions, 817 flow
[2024-06-14 12:59:18,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:18,121 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:18,121 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 12:59:18,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2024-06-14 12:59:18,121 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:18,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1223576323, now seen corresponding path program 6 times
[2024-06-14 12:59:18,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:18,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685348765]
[2024-06-14 12:59:18,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:18,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:20,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:20,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685348765]
[2024-06-14 12:59:20,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685348765] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:20,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:20,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:20,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569417594]
[2024-06-14 12:59:20,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:20,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:20,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:20,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:20,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:20,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:20,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 90 transitions, 817 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:20,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:20,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:20,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:21,297 INFO L124 PetriNetUnfolderBase]: 246/475 cut-off events.
[2024-06-14 12:59:21,298 INFO L125 PetriNetUnfolderBase]: For 11791/11797 co-relation queries the response was YES.
[2024-06-14 12:59:21,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 475 events. 246/475 cut-off events. For 11791/11797 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1985 event pairs, 47 based on Foata normal form. 16/491 useless extension candidates. Maximal degree in co-relation 2634. Up to 348 conditions per place.
[2024-06-14 12:59:21,300 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 71 selfloop transitions, 4 changer transitions 31/108 dead transitions.
[2024-06-14 12:59:21,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 108 transitions, 1107 flow
[2024-06-14 12:59:21,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:59:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:59:21,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 89 transitions.
[2024-06-14 12:59:21,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2870967741935484
[2024-06-14 12:59:21,301 INFO L175 Difference]: Start difference. First operand has 118 places, 90 transitions, 817 flow. Second operand 10 states and 89 transitions.
[2024-06-14 12:59:21,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 108 transitions, 1107 flow
[2024-06-14 12:59:21,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 108 transitions, 1041 flow, removed 2 selfloop flow, removed 9 redundant places.
[2024-06-14 12:59:21,312 INFO L231 Difference]: Finished difference. Result has 117 places, 76 transitions, 639 flow
[2024-06-14 12:59:21,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=639, PETRI_PLACES=117, PETRI_TRANSITIONS=76}
[2024-06-14 12:59:21,313 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 87 predicate places.
[2024-06-14 12:59:21,313 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 76 transitions, 639 flow
[2024-06-14 12:59:21,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:21,313 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:21,313 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 12:59:21,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2024-06-14 12:59:21,313 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:21,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:21,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1938803057, now seen corresponding path program 2 times
[2024-06-14 12:59:21,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:21,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759470790]
[2024-06-14 12:59:21,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:21,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:23,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:23,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:23,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759470790]
[2024-06-14 12:59:23,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759470790] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:23,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:23,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:23,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891356834]
[2024-06-14 12:59:23,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:23,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:23,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:23,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:23,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:23,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:23,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 76 transitions, 639 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:23,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:23,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:23,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:24,162 INFO L124 PetriNetUnfolderBase]: 201/382 cut-off events.
[2024-06-14 12:59:24,162 INFO L125 PetriNetUnfolderBase]: For 8113/8113 co-relation queries the response was YES.
[2024-06-14 12:59:24,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2217 conditions, 382 events. 201/382 cut-off events. For 8113/8113 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1466 event pairs, 45 based on Foata normal form. 2/384 useless extension candidates. Maximal degree in co-relation 2173. Up to 303 conditions per place.
[2024-06-14 12:59:24,164 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 59 selfloop transitions, 23 changer transitions 0/84 dead transitions.
[2024-06-14 12:59:24,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 84 transitions, 841 flow
[2024-06-14 12:59:24,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:59:24,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:59:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 71 transitions.
[2024-06-14 12:59:24,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2862903225806452
[2024-06-14 12:59:24,165 INFO L175 Difference]: Start difference. First operand has 117 places, 76 transitions, 639 flow. Second operand 8 states and 71 transitions.
[2024-06-14 12:59:24,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 84 transitions, 841 flow
[2024-06-14 12:59:24,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 84 transitions, 798 flow, removed 16 selfloop flow, removed 11 redundant places.
[2024-06-14 12:59:24,173 INFO L231 Difference]: Finished difference. Result has 99 places, 77 transitions, 670 flow
[2024-06-14 12:59:24,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=670, PETRI_PLACES=99, PETRI_TRANSITIONS=77}
[2024-06-14 12:59:24,173 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 69 predicate places.
[2024-06-14 12:59:24,174 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 77 transitions, 670 flow
[2024-06-14 12:59:24,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:24,174 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:24,174 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 12:59:24,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2024-06-14 12:59:24,174 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:24,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1944373199, now seen corresponding path program 7 times
[2024-06-14 12:59:24,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:24,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866888977]
[2024-06-14 12:59:24,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:24,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:26,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:26,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866888977]
[2024-06-14 12:59:26,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866888977] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:26,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:26,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:26,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929259916]
[2024-06-14 12:59:26,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:26,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:26,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:26,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:26,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:26,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:26,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 77 transitions, 670 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:26,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:26,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:26,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:26,947 INFO L124 PetriNetUnfolderBase]: 217/418 cut-off events.
[2024-06-14 12:59:26,947 INFO L125 PetriNetUnfolderBase]: For 7042/7042 co-relation queries the response was YES.
[2024-06-14 12:59:26,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2214 conditions, 418 events. 217/418 cut-off events. For 7042/7042 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1690 event pairs, 47 based on Foata normal form. 10/428 useless extension candidates. Maximal degree in co-relation 2176. Up to 277 conditions per place.
[2024-06-14 12:59:26,949 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 49 selfloop transitions, 30 changer transitions 12/93 dead transitions.
[2024-06-14 12:59:26,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 93 transitions, 922 flow
[2024-06-14 12:59:26,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-06-14 12:59:26,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-06-14 12:59:26,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 98 transitions.
[2024-06-14 12:59:26,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2873900293255132
[2024-06-14 12:59:26,961 INFO L175 Difference]: Start difference. First operand has 99 places, 77 transitions, 670 flow. Second operand 11 states and 98 transitions.
[2024-06-14 12:59:26,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 93 transitions, 922 flow
[2024-06-14 12:59:26,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 93 transitions, 870 flow, removed 5 selfloop flow, removed 6 redundant places.
[2024-06-14 12:59:26,968 INFO L231 Difference]: Finished difference. Result has 104 places, 73 transitions, 641 flow
[2024-06-14 12:59:26,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=641, PETRI_PLACES=104, PETRI_TRANSITIONS=73}
[2024-06-14 12:59:26,968 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 74 predicate places.
[2024-06-14 12:59:26,969 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 73 transitions, 641 flow
[2024-06-14 12:59:26,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:26,969 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:26,969 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 12:59:26,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2024-06-14 12:59:26,969 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:26,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:26,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1144362671, now seen corresponding path program 3 times
[2024-06-14 12:59:26,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:26,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237216840]
[2024-06-14 12:59:26,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:26,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:29,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:29,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:29,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237216840]
[2024-06-14 12:59:29,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237216840] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:29,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:29,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:29,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926220273]
[2024-06-14 12:59:29,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:29,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:29,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:29,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:29,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:29,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:29,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 73 transitions, 641 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:29,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:29,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:29,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:29,822 INFO L124 PetriNetUnfolderBase]: 191/372 cut-off events.
[2024-06-14 12:59:29,823 INFO L125 PetriNetUnfolderBase]: For 5890/5890 co-relation queries the response was YES.
[2024-06-14 12:59:29,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 372 events. 191/372 cut-off events. For 5890/5890 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1463 event pairs, 41 based on Foata normal form. 2/374 useless extension candidates. Maximal degree in co-relation 2006. Up to 277 conditions per place.
[2024-06-14 12:59:29,824 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 53 selfloop transitions, 28 changer transitions 0/83 dead transitions.
[2024-06-14 12:59:29,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 83 transitions, 843 flow
[2024-06-14 12:59:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:59:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:59:29,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 79 transitions.
[2024-06-14 12:59:29,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2831541218637993
[2024-06-14 12:59:29,829 INFO L175 Difference]: Start difference. First operand has 104 places, 73 transitions, 641 flow. Second operand 9 states and 79 transitions.
[2024-06-14 12:59:29,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 83 transitions, 843 flow
[2024-06-14 12:59:29,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 83 transitions, 779 flow, removed 2 selfloop flow, removed 10 redundant places.
[2024-06-14 12:59:29,835 INFO L231 Difference]: Finished difference. Result has 100 places, 74 transitions, 654 flow
[2024-06-14 12:59:29,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=91, 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=9, PETRI_FLOW=654, PETRI_PLACES=100, PETRI_TRANSITIONS=74}
[2024-06-14 12:59:29,835 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 70 predicate places.
[2024-06-14 12:59:29,835 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 74 transitions, 654 flow
[2024-06-14 12:59:29,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:29,836 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:29,836 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 12:59:29,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2024-06-14 12:59:29,836 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:29,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1144512773, now seen corresponding path program 8 times
[2024-06-14 12:59:29,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:29,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969104693]
[2024-06-14 12:59:29,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:29,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:32,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:32,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:32,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969104693]
[2024-06-14 12:59:32,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969104693] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:32,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:32,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:32,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050822371]
[2024-06-14 12:59:32,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:32,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:32,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:32,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:32,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:32,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:32,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 74 transitions, 654 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:32,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:32,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:32,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:32,618 INFO L124 PetriNetUnfolderBase]: 207/408 cut-off events.
[2024-06-14 12:59:32,618 INFO L125 PetriNetUnfolderBase]: For 6962/6962 co-relation queries the response was YES.
[2024-06-14 12:59:32,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2154 conditions, 408 events. 207/408 cut-off events. For 6962/6962 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1682 event pairs, 47 based on Foata normal form. 10/418 useless extension candidates. Maximal degree in co-relation 2116. Up to 253 conditions per place.
[2024-06-14 12:59:32,620 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 45 selfloop transitions, 31 changer transitions 11/89 dead transitions.
[2024-06-14 12:59:32,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 89 transitions, 896 flow
[2024-06-14 12:59:32,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:59:32,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:59:32,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 92 transitions.
[2024-06-14 12:59:32,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2967741935483871
[2024-06-14 12:59:32,622 INFO L175 Difference]: Start difference. First operand has 100 places, 74 transitions, 654 flow. Second operand 10 states and 92 transitions.
[2024-06-14 12:59:32,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 89 transitions, 896 flow
[2024-06-14 12:59:32,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 89 transitions, 831 flow, removed 6 selfloop flow, removed 7 redundant places.
[2024-06-14 12:59:32,628 INFO L231 Difference]: Finished difference. Result has 103 places, 71 transitions, 632 flow
[2024-06-14 12:59:32,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=632, PETRI_PLACES=103, PETRI_TRANSITIONS=71}
[2024-06-14 12:59:32,629 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 73 predicate places.
[2024-06-14 12:59:32,629 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 71 transitions, 632 flow
[2024-06-14 12:59:32,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:32,629 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:32,629 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 12:59:32,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2024-06-14 12:59:32,629 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:32,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1144516493, now seen corresponding path program 9 times
[2024-06-14 12:59:32,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:32,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898107650]
[2024-06-14 12:59:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:32,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:34,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:34,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:34,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898107650]
[2024-06-14 12:59:34,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898107650] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:34,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:34,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:34,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478737767]
[2024-06-14 12:59:34,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:34,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:34,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:34,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:34,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:35,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:35,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 71 transitions, 632 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:35,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:35,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:35,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:35,648 INFO L124 PetriNetUnfolderBase]: 210/421 cut-off events.
[2024-06-14 12:59:35,648 INFO L125 PetriNetUnfolderBase]: For 8440/8440 co-relation queries the response was YES.
[2024-06-14 12:59:35,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 421 events. 210/421 cut-off events. For 8440/8440 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1777 event pairs, 52 based on Foata normal form. 8/429 useless extension candidates. Maximal degree in co-relation 2248. Up to 148 conditions per place.
[2024-06-14 12:59:35,651 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 51 selfloop transitions, 28 changer transitions 9/90 dead transitions.
[2024-06-14 12:59:35,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 90 transitions, 942 flow
[2024-06-14 12:59:35,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:59:35,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:59:35,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 94 transitions.
[2024-06-14 12:59:35,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3032258064516129
[2024-06-14 12:59:35,661 INFO L175 Difference]: Start difference. First operand has 103 places, 71 transitions, 632 flow. Second operand 10 states and 94 transitions.
[2024-06-14 12:59:35,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 90 transitions, 942 flow
[2024-06-14 12:59:35,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 90 transitions, 872 flow, removed 4 selfloop flow, removed 9 redundant places.
[2024-06-14 12:59:35,669 INFO L231 Difference]: Finished difference. Result has 101 places, 67 transitions, 586 flow
[2024-06-14 12:59:35,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=586, PETRI_PLACES=101, PETRI_TRANSITIONS=67}
[2024-06-14 12:59:35,669 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 71 predicate places.
[2024-06-14 12:59:35,669 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 67 transitions, 586 flow
[2024-06-14 12:59:35,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:35,670 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:35,670 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 12:59:35,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45
[2024-06-14 12:59:35,670 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:35,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:35,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1138791041, now seen corresponding path program 4 times
[2024-06-14 12:59:35,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:35,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198355592]
[2024-06-14 12:59:35,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:35,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:37,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:37,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:37,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198355592]
[2024-06-14 12:59:37,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198355592] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:37,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:37,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:37,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684751565]
[2024-06-14 12:59:37,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:37,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:37,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:37,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:37,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:37,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:37,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 67 transitions, 586 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:37,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:37,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:37,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:38,382 INFO L124 PetriNetUnfolderBase]: 193/386 cut-off events.
[2024-06-14 12:59:38,383 INFO L125 PetriNetUnfolderBase]: For 6598/6598 co-relation queries the response was YES.
[2024-06-14 12:59:38,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2134 conditions, 386 events. 193/386 cut-off events. For 6598/6598 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1556 event pairs, 38 based on Foata normal form. 2/388 useless extension candidates. Maximal degree in co-relation 2096. Up to 312 conditions per place.
[2024-06-14 12:59:38,385 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 54 selfloop transitions, 19 changer transitions 0/75 dead transitions.
[2024-06-14 12:59:38,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 75 transitions, 762 flow
[2024-06-14 12:59:38,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 12:59:38,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 12:59:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 70 transitions.
[2024-06-14 12:59:38,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28225806451612906
[2024-06-14 12:59:38,386 INFO L175 Difference]: Start difference. First operand has 101 places, 67 transitions, 586 flow. Second operand 8 states and 70 transitions.
[2024-06-14 12:59:38,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 75 transitions, 762 flow
[2024-06-14 12:59:38,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 75 transitions, 709 flow, removed 3 selfloop flow, removed 10 redundant places.
[2024-06-14 12:59:38,392 INFO L231 Difference]: Finished difference. Result has 96 places, 68 transitions, 593 flow
[2024-06-14 12:59:38,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=593, PETRI_PLACES=96, PETRI_TRANSITIONS=68}
[2024-06-14 12:59:38,392 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 66 predicate places.
[2024-06-14 12:59:38,392 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 68 transitions, 593 flow
[2024-06-14 12:59:38,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:38,393 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:38,393 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 12:59:38,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2024-06-14 12:59:38,393 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:38,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:38,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1139006243, now seen corresponding path program 10 times
[2024-06-14 12:59:38,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:38,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336307695]
[2024-06-14 12:59:38,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:38,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:40,665 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 12:59:40,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:40,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336307695]
[2024-06-14 12:59:40,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336307695] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:40,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:40,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:40,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648074555]
[2024-06-14 12:59:40,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:40,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:40,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:40,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:40,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:40,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:40,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 68 transitions, 593 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:40,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:40,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:40,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:41,277 INFO L124 PetriNetUnfolderBase]: 180/363 cut-off events.
[2024-06-14 12:59:41,277 INFO L125 PetriNetUnfolderBase]: For 5120/5120 co-relation queries the response was YES.
[2024-06-14 12:59:41,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1836 conditions, 363 events. 180/363 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1448 event pairs, 43 based on Foata normal form. 10/373 useless extension candidates. Maximal degree in co-relation 1800. Up to 233 conditions per place.
[2024-06-14 12:59:41,279 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 45 selfloop transitions, 19 changer transitions 15/81 dead transitions.
[2024-06-14 12:59:41,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 81 transitions, 811 flow
[2024-06-14 12:59:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:59:41,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:59:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 82 transitions.
[2024-06-14 12:59:41,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2939068100358423
[2024-06-14 12:59:41,280 INFO L175 Difference]: Start difference. First operand has 96 places, 68 transitions, 593 flow. Second operand 9 states and 82 transitions.
[2024-06-14 12:59:41,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 81 transitions, 811 flow
[2024-06-14 12:59:41,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 81 transitions, 761 flow, removed 7 selfloop flow, removed 6 redundant places.
[2024-06-14 12:59:41,286 INFO L231 Difference]: Finished difference. Result has 99 places, 61 transitions, 514 flow
[2024-06-14 12:59:41,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=514, PETRI_PLACES=99, PETRI_TRANSITIONS=61}
[2024-06-14 12:59:41,286 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 69 predicate places.
[2024-06-14 12:59:41,286 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 61 transitions, 514 flow
[2024-06-14 12:59:41,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:41,286 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:41,286 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 12:59:41,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47
[2024-06-14 12:59:41,286 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:41,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:41,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2019306531, now seen corresponding path program 5 times
[2024-06-14 12:59:41,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:41,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121485657]
[2024-06-14 12:59:41,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:41,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:43,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:43,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:43,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121485657]
[2024-06-14 12:59:43,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121485657] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:43,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:43,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:43,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559711377]
[2024-06-14 12:59:43,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:43,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:43,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:43,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:43,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:43,632 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:43,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 61 transitions, 514 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:43,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:43,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:43,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:44,110 INFO L124 PetriNetUnfolderBase]: 149/310 cut-off events.
[2024-06-14 12:59:44,111 INFO L125 PetriNetUnfolderBase]: For 4171/4171 co-relation queries the response was YES.
[2024-06-14 12:59:44,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1595 conditions, 310 events. 149/310 cut-off events. For 4171/4171 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1173 event pairs, 23 based on Foata normal form. 2/312 useless extension candidates. Maximal degree in co-relation 1558. Up to 214 conditions per place.
[2024-06-14 12:59:44,112 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 47 selfloop transitions, 22 changer transitions 0/71 dead transitions.
[2024-06-14 12:59:44,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 71 transitions, 688 flow
[2024-06-14 12:59:44,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:59:44,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:59:44,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 76 transitions.
[2024-06-14 12:59:44,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2724014336917563
[2024-06-14 12:59:44,113 INFO L175 Difference]: Start difference. First operand has 99 places, 61 transitions, 514 flow. Second operand 9 states and 76 transitions.
[2024-06-14 12:59:44,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 71 transitions, 688 flow
[2024-06-14 12:59:44,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 71 transitions, 644 flow, removed 3 selfloop flow, removed 8 redundant places.
[2024-06-14 12:59:44,118 INFO L231 Difference]: Finished difference. Result has 95 places, 62 transitions, 538 flow
[2024-06-14 12:59:44,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=538, PETRI_PLACES=95, PETRI_TRANSITIONS=62}
[2024-06-14 12:59:44,118 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 65 predicate places.
[2024-06-14 12:59:44,118 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 62 transitions, 538 flow
[2024-06-14 12:59:44,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:44,118 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:44,119 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 12:59:44,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48
[2024-06-14 12:59:44,119 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:44,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:44,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1770215331, now seen corresponding path program 6 times
[2024-06-14 12:59:44,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:44,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114156462]
[2024-06-14 12:59:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:44,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:46,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:46,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114156462]
[2024-06-14 12:59:46,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114156462] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:46,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:46,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:46,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524741713]
[2024-06-14 12:59:46,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:46,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:46,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:46,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:46,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:46,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:46,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 62 transitions, 538 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:46,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:46,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:46,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:47,305 INFO L124 PetriNetUnfolderBase]: 153/318 cut-off events.
[2024-06-14 12:59:47,305 INFO L125 PetriNetUnfolderBase]: For 3967/3967 co-relation queries the response was YES.
[2024-06-14 12:59:47,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1642 conditions, 318 events. 153/318 cut-off events. For 3967/3967 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1231 event pairs, 39 based on Foata normal form. 2/320 useless extension candidates. Maximal degree in co-relation 1606. Up to 242 conditions per place.
[2024-06-14 12:59:47,307 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 48 selfloop transitions, 21 changer transitions 0/71 dead transitions.
[2024-06-14 12:59:47,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 71 transitions, 712 flow
[2024-06-14 12:59:47,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:59:47,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:59:47,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 78 transitions.
[2024-06-14 12:59:47,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.27956989247311825
[2024-06-14 12:59:47,312 INFO L175 Difference]: Start difference. First operand has 95 places, 62 transitions, 538 flow. Second operand 9 states and 78 transitions.
[2024-06-14 12:59:47,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 71 transitions, 712 flow
[2024-06-14 12:59:47,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 71 transitions, 654 flow, removed 8 selfloop flow, removed 7 redundant places.
[2024-06-14 12:59:47,317 INFO L231 Difference]: Finished difference. Result has 97 places, 63 transitions, 548 flow
[2024-06-14 12:59:47,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=548, PETRI_PLACES=97, PETRI_TRANSITIONS=63}
[2024-06-14 12:59:47,318 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 67 predicate places.
[2024-06-14 12:59:47,318 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 63 transitions, 548 flow
[2024-06-14 12:59:47,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:47,318 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:47,318 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 12:59:47,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2024-06-14 12:59:47,318 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:47,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:47,318 INFO L85 PathProgramCache]: Analyzing trace with hash -2019573441, now seen corresponding path program 7 times
[2024-06-14 12:59:47,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:47,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567948186]
[2024-06-14 12:59:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:47,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:49,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:49,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:49,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567948186]
[2024-06-14 12:59:49,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567948186] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:49,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:49,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:49,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322287799]
[2024-06-14 12:59:49,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:49,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:49,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:49,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:49,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:49,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:49,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 63 transitions, 548 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:49,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:49,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:49,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:50,111 INFO L124 PetriNetUnfolderBase]: 150/313 cut-off events.
[2024-06-14 12:59:50,111 INFO L125 PetriNetUnfolderBase]: For 3877/3877 co-relation queries the response was YES.
[2024-06-14 12:59:50,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1567 conditions, 313 events. 150/313 cut-off events. For 3877/3877 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1199 event pairs, 40 based on Foata normal form. 2/315 useless extension candidates. Maximal degree in co-relation 1530. Up to 234 conditions per place.
[2024-06-14 12:59:50,112 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 45 selfloop transitions, 24 changer transitions 0/71 dead transitions.
[2024-06-14 12:59:50,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 71 transitions, 706 flow
[2024-06-14 12:59:50,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 12:59:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 12:59:50,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 79 transitions.
[2024-06-14 12:59:50,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2831541218637993
[2024-06-14 12:59:50,117 INFO L175 Difference]: Start difference. First operand has 97 places, 63 transitions, 548 flow. Second operand 9 states and 79 transitions.
[2024-06-14 12:59:50,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 71 transitions, 706 flow
[2024-06-14 12:59:50,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 71 transitions, 648 flow, removed 9 selfloop flow, removed 7 redundant places.
[2024-06-14 12:59:50,123 INFO L231 Difference]: Finished difference. Result has 99 places, 63 transitions, 543 flow
[2024-06-14 12:59:50,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=543, PETRI_PLACES=99, PETRI_TRANSITIONS=63}
[2024-06-14 12:59:50,123 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 69 predicate places.
[2024-06-14 12:59:50,123 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 63 transitions, 543 flow
[2024-06-14 12:59:50,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:50,123 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:50,124 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 12:59:50,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50
[2024-06-14 12:59:50,124 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:50,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:50,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2026931043, now seen corresponding path program 11 times
[2024-06-14 12:59:50,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:50,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784309792]
[2024-06-14 12:59:50,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:50,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:52,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:52,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784309792]
[2024-06-14 12:59:52,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784309792] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:52,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:52,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:52,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748437541]
[2024-06-14 12:59:52,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:52,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:52,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:52,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:52,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:52,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:52,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 63 transitions, 543 flow. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:52,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:52,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:52,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:52,900 INFO L124 PetriNetUnfolderBase]: 152/323 cut-off events.
[2024-06-14 12:59:52,900 INFO L125 PetriNetUnfolderBase]: For 4784/4784 co-relation queries the response was YES.
[2024-06-14 12:59:52,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1490 conditions, 323 events. 152/323 cut-off events. For 4784/4784 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1273 event pairs, 42 based on Foata normal form. 10/333 useless extension candidates. Maximal degree in co-relation 1452. Up to 200 conditions per place.
[2024-06-14 12:59:52,901 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 39 selfloop transitions, 25 changer transitions 12/78 dead transitions.
[2024-06-14 12:59:52,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 78 transitions, 741 flow
[2024-06-14 12:59:52,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-06-14 12:59:52,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-06-14 12:59:52,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 103 transitions.
[2024-06-14 12:59:52,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2768817204301075
[2024-06-14 12:59:52,902 INFO L175 Difference]: Start difference. First operand has 99 places, 63 transitions, 543 flow. Second operand 12 states and 103 transitions.
[2024-06-14 12:59:52,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 78 transitions, 741 flow
[2024-06-14 12:59:52,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 78 transitions, 650 flow, removed 11 selfloop flow, removed 9 redundant places.
[2024-06-14 12:59:52,907 INFO L231 Difference]: Finished difference. Result has 102 places, 58 transitions, 464 flow
[2024-06-14 12:59:52,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=464, PETRI_PLACES=102, PETRI_TRANSITIONS=58}
[2024-06-14 12:59:52,908 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 72 predicate places.
[2024-06-14 12:59:52,908 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 58 transitions, 464 flow
[2024-06-14 12:59:52,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:52,908 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:52,908 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 12:59:52,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51
[2024-06-14 12:59:52,908 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:52,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:52,909 INFO L85 PathProgramCache]: Analyzing trace with hash -942782362, now seen corresponding path program 1 times
[2024-06-14 12:59:52,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:52,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768018889]
[2024-06-14 12:59:52,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:52,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:55,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:55,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:55,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768018889]
[2024-06-14 12:59:55,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768018889] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:55,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:55,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:55,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827701478]
[2024-06-14 12:59:55,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:55,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:55,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:55,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:55,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:55,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:55,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 58 transitions, 464 flow. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:55,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:55,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:55,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:55,724 INFO L124 PetriNetUnfolderBase]: 132/291 cut-off events.
[2024-06-14 12:59:55,725 INFO L125 PetriNetUnfolderBase]: For 4020/4020 co-relation queries the response was YES.
[2024-06-14 12:59:55,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1290 conditions, 291 events. 132/291 cut-off events. For 4020/4020 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1123 event pairs, 23 based on Foata normal form. 6/297 useless extension candidates. Maximal degree in co-relation 1252. Up to 193 conditions per place.
[2024-06-14 12:59:55,726 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 40 selfloop transitions, 19 changer transitions 9/70 dead transitions.
[2024-06-14 12:59:55,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 70 transitions, 628 flow
[2024-06-14 12:59:55,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:59:55,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:59:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 85 transitions.
[2024-06-14 12:59:55,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.27419354838709675
[2024-06-14 12:59:55,727 INFO L175 Difference]: Start difference. First operand has 102 places, 58 transitions, 464 flow. Second operand 10 states and 85 transitions.
[2024-06-14 12:59:55,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 70 transitions, 628 flow
[2024-06-14 12:59:55,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 70 transitions, 544 flow, removed 6 selfloop flow, removed 13 redundant places.
[2024-06-14 12:59:55,731 INFO L231 Difference]: Finished difference. Result has 96 places, 55 transitions, 406 flow
[2024-06-14 12:59:55,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=406, PETRI_PLACES=96, PETRI_TRANSITIONS=55}
[2024-06-14 12:59:55,732 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 66 predicate places.
[2024-06-14 12:59:55,732 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 55 transitions, 406 flow
[2024-06-14 12:59:55,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:55,733 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:55,733 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 12:59:55,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52
[2024-06-14 12:59:55,733 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:55,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:55,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1115502892, now seen corresponding path program 2 times
[2024-06-14 12:59:55,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:55,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392805284]
[2024-06-14 12:59:55,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:55,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 12:59:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 12:59:58,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 12:59:58,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392805284]
[2024-06-14 12:59:58,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392805284] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 12:59:58,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 12:59:58,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 12:59:58,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137065053]
[2024-06-14 12:59:58,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 12:59:58,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 12:59:58,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 12:59:58,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 12:59:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2024-06-14 12:59:58,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 12:59:58,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 55 transitions, 406 flow. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:58,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 12:59:58,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 12:59:58,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 12:59:59,008 INFO L124 PetriNetUnfolderBase]: 122/273 cut-off events.
[2024-06-14 12:59:59,008 INFO L125 PetriNetUnfolderBase]: For 3404/3404 co-relation queries the response was YES.
[2024-06-14 12:59:59,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1147 conditions, 273 events. 122/273 cut-off events. For 3404/3404 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1018 event pairs, 36 based on Foata normal form. 6/279 useless extension candidates. Maximal degree in co-relation 1112. Up to 154 conditions per place.
[2024-06-14 12:59:59,010 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 36 selfloop transitions, 16 changer transitions 14/68 dead transitions.
[2024-06-14 12:59:59,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 68 transitions, 574 flow
[2024-06-14 12:59:59,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 12:59:59,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 12:59:59,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 85 transitions.
[2024-06-14 12:59:59,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.27419354838709675
[2024-06-14 12:59:59,010 INFO L175 Difference]: Start difference. First operand has 96 places, 55 transitions, 406 flow. Second operand 10 states and 85 transitions.
[2024-06-14 12:59:59,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 68 transitions, 574 flow
[2024-06-14 12:59:59,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 68 transitions, 526 flow, removed 2 selfloop flow, removed 11 redundant places.
[2024-06-14 12:59:59,014 INFO L231 Difference]: Finished difference. Result has 92 places, 49 transitions, 344 flow
[2024-06-14 12:59:59,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=344, PETRI_PLACES=92, PETRI_TRANSITIONS=49}
[2024-06-14 12:59:59,015 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 62 predicate places.
[2024-06-14 12:59:59,015 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 49 transitions, 344 flow
[2024-06-14 12:59:59,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 12:59:59,015 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 12:59:59,015 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 12:59:59,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2024-06-14 12:59:59,015 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 12:59:59,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 12:59:59,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1956367218, now seen corresponding path program 3 times
[2024-06-14 12:59:59,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 12:59:59,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318000498]
[2024-06-14 12:59:59,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 12:59:59,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 12:59:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:00:01,326 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 13:00:01,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:00:01,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318000498]
[2024-06-14 13:00:01,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318000498] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:00:01,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:00:01,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-06-14 13:00:01,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381589553]
[2024-06-14 13:00:01,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:00:01,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-06-14 13:00:01,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:00:01,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-06-14 13:00:01,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-06-14 13:00:01,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 13:00:01,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 49 transitions, 344 flow. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:00:01,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:00:01,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 13:00:01,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:00:01,896 INFO L124 PetriNetUnfolderBase]: 93/210 cut-off events.
[2024-06-14 13:00:01,896 INFO L125 PetriNetUnfolderBase]: For 2098/2098 co-relation queries the response was YES.
[2024-06-14 13:00:01,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 210 events. 93/210 cut-off events. For 2098/2098 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 698 event pairs, 23 based on Foata normal form. 6/216 useless extension candidates. Maximal degree in co-relation 788. Up to 107 conditions per place.
[2024-06-14 13:00:01,897 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 28 selfloop transitions, 7 changer transitions 23/60 dead transitions.
[2024-06-14 13:00:01,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 60 transitions, 488 flow
[2024-06-14 13:00:01,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 13:00:01,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 13:00:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 76 transitions.
[2024-06-14 13:00:01,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2724014336917563
[2024-06-14 13:00:01,898 INFO L175 Difference]: Start difference. First operand has 92 places, 49 transitions, 344 flow. Second operand 9 states and 76 transitions.
[2024-06-14 13:00:01,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 60 transitions, 488 flow
[2024-06-14 13:00:01,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 60 transitions, 448 flow, removed 4 selfloop flow, removed 10 redundant places.
[2024-06-14 13:00:01,900 INFO L231 Difference]: Finished difference. Result has 85 places, 34 transitions, 206 flow
[2024-06-14 13:00:01,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=206, PETRI_PLACES=85, PETRI_TRANSITIONS=34}
[2024-06-14 13:00:01,900 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 55 predicate places.
[2024-06-14 13:00:01,900 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 34 transitions, 206 flow
[2024-06-14 13:00:01,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 13:00:01,900 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:00:01,900 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 13:00:01,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54
[2024-06-14 13:00:01,901 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 13:00:01,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:00:01,901 INFO L85 PathProgramCache]: Analyzing trace with hash 957901128, now seen corresponding path program 4 times
[2024-06-14 13:00:01,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:00:01,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304487899]
[2024-06-14 13:00:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:00:01,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:00:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:00:04,620 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 13:00:04,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:00:04,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304487899]
[2024-06-14 13:00:04,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304487899] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:00:04,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:00:04,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-06-14 13:00:04,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094999687]
[2024-06-14 13:00:04,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:00:04,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-06-14 13:00:04,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:00:04,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-06-14 13:00:04,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132
[2024-06-14 13:00:04,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 13:00:04,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 34 transitions, 206 flow. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 13:00:04,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:00:04,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 13:00:04,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:00:05,226 INFO L124 PetriNetUnfolderBase]: 65/146 cut-off events.
[2024-06-14 13:00:05,227 INFO L125 PetriNetUnfolderBase]: For 1392/1392 co-relation queries the response was YES.
[2024-06-14 13:00:05,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 146 events. 65/146 cut-off events. For 1392/1392 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 414 event pairs, 17 based on Foata normal form. 6/152 useless extension candidates. Maximal degree in co-relation 506. Up to 81 conditions per place.
[2024-06-14 13:00:05,227 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 24 selfloop transitions, 9 changer transitions 11/46 dead transitions.
[2024-06-14 13:00:05,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 46 transitions, 320 flow
[2024-06-14 13:00:05,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 13:00:05,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 13:00:05,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 81 transitions.
[2024-06-14 13:00:05,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.26129032258064516
[2024-06-14 13:00:05,228 INFO L175 Difference]: Start difference. First operand has 85 places, 34 transitions, 206 flow. Second operand 10 states and 81 transitions.
[2024-06-14 13:00:05,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 46 transitions, 320 flow
[2024-06-14 13:00:05,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 46 transitions, 274 flow, removed 5 selfloop flow, removed 16 redundant places.
[2024-06-14 13:00:05,229 INFO L231 Difference]: Finished difference. Result has 67 places, 31 transitions, 167 flow
[2024-06-14 13:00:05,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=167, PETRI_PLACES=67, PETRI_TRANSITIONS=31}
[2024-06-14 13:00:05,230 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 37 predicate places.
[2024-06-14 13:00:05,230 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 31 transitions, 167 flow
[2024-06-14 13:00:05,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 13:00:05,230 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:00:05,230 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 13:00:05,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55
[2024-06-14 13:00:05,230 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 13:00:05,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:00:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash 957670488, now seen corresponding path program 5 times
[2024-06-14 13:00:05,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:00:05,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146479943]
[2024-06-14 13:00:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:00:05,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:00:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:00:07,759 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 13:00:07,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:00:07,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146479943]
[2024-06-14 13:00:07,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146479943] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:00:07,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:00:07,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-06-14 13:00:07,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116320159]
[2024-06-14 13:00:07,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:00:07,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-06-14 13:00:07,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:00:07,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-06-14 13:00:07,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132
[2024-06-14 13:00:07,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 13:00:07,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 31 transitions, 167 flow. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 13:00:07,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:00:07,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 13:00:07,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:00:08,424 INFO L124 PetriNetUnfolderBase]: 55/128 cut-off events.
[2024-06-14 13:00:08,424 INFO L125 PetriNetUnfolderBase]: For 1034/1034 co-relation queries the response was YES.
[2024-06-14 13:00:08,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 128 events. 55/128 cut-off events. For 1034/1034 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 332 event pairs, 17 based on Foata normal form. 6/134 useless extension candidates. Maximal degree in co-relation 426. Up to 60 conditions per place.
[2024-06-14 13:00:08,425 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 18 selfloop transitions, 6 changer transitions 18/44 dead transitions.
[2024-06-14 13:00:08,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 44 transitions, 279 flow
[2024-06-14 13:00:08,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-06-14 13:00:08,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-06-14 13:00:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 90 transitions.
[2024-06-14 13:00:08,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.24193548387096775
[2024-06-14 13:00:08,434 INFO L175 Difference]: Start difference. First operand has 67 places, 31 transitions, 167 flow. Second operand 12 states and 90 transitions.
[2024-06-14 13:00:08,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 44 transitions, 279 flow
[2024-06-14 13:00:08,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 44 transitions, 255 flow, removed 3 selfloop flow, removed 9 redundant places.
[2024-06-14 13:00:08,435 INFO L231 Difference]: Finished difference. Result has 65 places, 22 transitions, 104 flow
[2024-06-14 13:00:08,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=104, PETRI_PLACES=65, PETRI_TRANSITIONS=22}
[2024-06-14 13:00:08,436 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 35 predicate places.
[2024-06-14 13:00:08,436 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 22 transitions, 104 flow
[2024-06-14 13:00:08,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 13:00:08,436 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 13:00:08,436 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 13:00:08,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56
[2024-06-14 13:00:08,436 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 13:00:08,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 13:00:08,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1080202886, now seen corresponding path program 6 times
[2024-06-14 13:00:08,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 13:00:08,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206013306]
[2024-06-14 13:00:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 13:00:08,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 13:00:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 13:00:11,448 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 13:00:11,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 13:00:11,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206013306]
[2024-06-14 13:00:11,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206013306] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 13:00:11,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 13:00:11,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-06-14 13:00:11,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594613733]
[2024-06-14 13:00:11,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 13:00:11,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-06-14 13:00:11,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 13:00:11,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-06-14 13:00:11,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2024-06-14 13:00:11,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31
[2024-06-14 13:00:11,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 22 transitions, 104 flow. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 13:00:11,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 13:00:11,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31
[2024-06-14 13:00:11,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 13:00:11,845 INFO L124 PetriNetUnfolderBase]: 25/66 cut-off events.
[2024-06-14 13:00:11,845 INFO L125 PetriNetUnfolderBase]: For 368/368 co-relation queries the response was YES.
[2024-06-14 13:00:11,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 66 events. 25/66 cut-off events. For 368/368 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 6/72 useless extension candidates. Maximal degree in co-relation 174. Up to 24 conditions per place.
[2024-06-14 13:00:11,846 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions.
[2024-06-14 13:00:11,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 30 transitions, 154 flow
[2024-06-14 13:00:11,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 13:00:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 13:00:11,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 69 transitions.
[2024-06-14 13:00:11,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.22258064516129034
[2024-06-14 13:00:11,846 INFO L175 Difference]: Start difference. First operand has 65 places, 22 transitions, 104 flow. Second operand 10 states and 69 transitions.
[2024-06-14 13:00:11,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 30 transitions, 154 flow
[2024-06-14 13:00:11,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 30 transitions, 122 flow, removed 1 selfloop flow, removed 16 redundant places.
[2024-06-14 13:00:11,847 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow
[2024-06-14 13:00:11,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0}
[2024-06-14 13:00:11,847 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 17 predicate places.
[2024-06-14 13:00:11,847 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow
[2024-06-14 13:00:11,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 13:00:11,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining)
[2024-06-14 13:00:11,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining)
[2024-06-14 13:00:11,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining)
[2024-06-14 13:00:11,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining)
[2024-06-14 13:00:11,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57
[2024-06-14 13:00:11,851 INFO L445 BasicCegarLoop]: Path program histogram: [11, 8, 7, 6, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 13:00:11,853 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-06-14 13:00:11,853 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2024-06-14 13:00:11,856 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants
[2024-06-14 13:00:11,856 INFO L508 ceAbstractionStarter]: WitnessConsidered=2
[2024-06-14 13:00:11,857 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 01:00:11 BasicIcfg
[2024-06-14 13:00:11,857 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-06-14 13:00:11,857 INFO L158 Benchmark]: Toolchain (without parser) took 160683.47ms. Allocated memory was 163.6MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 134.7MB in the beginning and 592.9MB in the end (delta: -458.2MB). Peak memory consumption was 480.6MB. Max. memory is 16.1GB.
[2024-06-14 13:00:11,858 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory was 74.6MB in the beginning and 74.5MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-06-14 13:00:11,858 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 163.6MB. Free memory was 92.8MB in the beginning and 92.7MB in the end (delta: 116.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-06-14 13:00:11,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.85ms. Allocated memory is still 163.6MB. Free memory was 134.2MB in the beginning and 95.7MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB.
[2024-06-14 13:00:11,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.59ms. Allocated memory is still 163.6MB. Free memory was 95.1MB in the beginning and 92.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-06-14 13:00:11,859 INFO L158 Benchmark]: Boogie Preprocessor took 62.37ms. Allocated memory is still 163.6MB. Free memory was 92.1MB in the beginning and 87.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-06-14 13:00:11,859 INFO L158 Benchmark]: RCFGBuilder took 882.27ms. Allocated memory is still 163.6MB. Free memory was 87.9MB in the beginning and 112.1MB in the end (delta: -24.2MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB.
[2024-06-14 13:00:11,859 INFO L158 Benchmark]: TraceAbstraction took 159168.94ms. Allocated memory was 163.6MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 112.1MB in the beginning and 592.9MB in the end (delta: -480.8MB). Peak memory consumption was 457.6MB. Max. memory is 16.1GB.
[2024-06-14 13:00:11,861 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory was 74.6MB in the beginning and 74.5MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Parser took 0.17ms. Allocated memory is still 163.6MB. Free memory was 92.8MB in the beginning and 92.7MB in the end (delta: 116.2kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 516.85ms. Allocated memory is still 163.6MB. Free memory was 134.2MB in the beginning and 95.7MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 48.59ms. Allocated memory is still 163.6MB. Free memory was 95.1MB in the beginning and 92.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 62.37ms. Allocated memory is still 163.6MB. Free memory was 92.1MB in the beginning and 87.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* RCFGBuilder took 882.27ms. Allocated memory is still 163.6MB. Free memory was 87.9MB in the beginning and 112.1MB in the end (delta: -24.2MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 159168.94ms. Allocated memory was 163.6MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 112.1MB in the beginning and 592.9MB in the end (delta: -480.8MB). Peak memory consumption was 457.6MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 828]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 829]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 159.1s, OverallIterations: 58, TraceHistogramMax: 1, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 31.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1593 SdHoareTripleChecker+Valid, 11.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1520 mSDsluCounter, 521 SdHoareTripleChecker+Invalid, 10.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 398 mSDsCounter, 583 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11893 IncrementalHoareTripleChecker+Invalid, 12476 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 583 mSolverCounterUnsat, 123 mSDtfsCounter, 11893 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 628 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 624 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 962 ImplicationChecksByTransitivity, 47.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=922occurred in iteration=37, InterpolantAutomatonStates: 483, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 126.4s InterpolantComputationTime, 958 NumberOfCodeBlocks, 958 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 900 ConstructedInterpolants, 0 QuantifiedInterpolants, 88613 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 58 InterpolantComputations, 58 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
2 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-06-14 13:00:11,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE